bluuebunny/crossref_metadata_2025 huggingface dataset:
Quantifying Domain Shift for Deep Learning Based Synthetic CT Generation with Uncertainty Predictions
Authors: Hemsley Matt , Lawrence Liam , Chan Rachel , Chuge Brige , Lau Angus
Published: August 2023

Convolutional Neural Networks behave unpredictively when test images differ from the training images, for example when different sequences or acquisition parameters are used. We trained models to generate synthetic CT images, and tested the models on both in-distribution and out-of-distribution input sequences to determine the magnitude of performance loss. Additionally, we evaluated if uncertainty estimates made using dropout-based variational inference could detect spatial regions of failure. Networks tested on out of distribution images failed to generate accurate synthetic CT images. Uncertainty estimates identified spatial regions of failure and increased with the difference between the training and testing sets.
Volumetric ultrasound hyperthermia treatment using the ExAblate body MR-guided Focused Ultrasound (MRgFUS) system
Authors: Kim Kisoo , Zubair Muhammad , Diederich Chris , Ozhinsky Eugene
Published: August 2023

Hyperthermia refers to a cancer treatment by elevating tissue temperature to 40-45 °C. Hyperthermia can be achieved by clinical MRgFUS system, allowing real-time temperature monitoring for the precise control of hyperthermia heating. Currently the ExAblate is MR-guided FUS ablation system with the largest installation worldwide, however, requires advanced beamforming strategies for volumetric hyperthermia. This study proposed electronic beam steering, multi-focal patterns, and sector-vortex beamforming approaches in conjunction with partial array activation and was evaluated in biothermal simulations and phantom experiments. This study demonstrated the feasibility of sustained large volume heating with MR thermometry feedback using the ExAblate body system.
Design of a permanent magnet for a 0.55 T tabletop MRI
Authors: Jia Feng , Littin Sebastian , Amrein Philipp , Zaitsev Maxim
Published: August 2023

Optimize the shape of pole shoes of a 0.55 T permanent magnet to increase the homogeneity of the main magnetic field in a region of interest.
Comparison of RF-Induced Heating of a Vascular Stent in an ASTM Phantom and Two Virtual Human Anatomies in Open and Closed Bore MRI Systems
Authors: Anttila Eric , Baker Grant , Leewood Alan , Kim Seoggwan , Gross David
Published: August 2023

The primary goal of this study was to compare radiofrequency (RF) induced temperature rises of a stent within the ASTM phantom and two virtual human anatomies in a 1.2 T Hitachi Oasis open bore, 1.5 T Siemens Altea closed bore, and 3.0 T Siemens Prisma closed bore MRI systems for the purpose of MRI labeling according to ASTM F25031. The secondary goal was to simulate RF-induced heating of the same stent within the Duke virtual human model containing 1) internal organs with individual material properties and 2) no internal organs and average tissue properties throughout and compare predicted temperature rises.
Gender Differences in Cell Volume Fraction (CVF) of Human Brains Measured by Quantitative Sodium MR Imaging
Authors: Thulborn Keith
Published: August 2023

The cell volume fraction (CVF), derived from tissue sodium concentration as measured by quantitative sodium MR imaging, in the human brain is high (~0.82) and maintained with normal aging despite decreases in brain volume. The gender difference (females: 0.807±0.009; males: 0.827±0.011, p<0.001) is also maintained over normal aging. This difference is posited to reflect the energy saving from higher CVF required for the larger male brain with higher number of neurons and synapses compared to female brains.
Physical Activity during Pregnancy is Associated with Newborn’s Brain Cortical Development
Authors: Na Xiaoxu , Raja Rajikha , Andres Aline , Ou Xiawei
Published: August 2023

This study examined relationships between mother’s physical activity during pregnancy and newborn’s brain cortical development. Healthy pregnant women were recruited and their physical activity level were monitored throughout pregnancy. Their newborns underwent a brain MRI examination at 2 weeks of postnatal age. Brain structural images were post-processed and mean cortical thickness for different brain regions was calculated. We found that at both 1st and 2nd trimester of pregnancy, there were significant positive correlations between mother’s physical activity level and newborn’s brain cortical thickness in multiple regions, suggesting positive impact of mother’s physical activity during pregnancy on offspring brain cortical development.
Development of high resolution PD-weighted, T2-weighted, and T2 map templates for use in studies on older adults.
Authors: RIDWAN ABDUR RAQUIB , Niaz Mohammad Rakeen , Wu Yingjuan , Zhang Shengwei , Bennett David A. , Arfanakis Konstantinos
Published: August 2023

Atlas based MRI investigations involving PD-weighted (PDw), T2-weighted (T2w) MRI sequences on older adults typically utilized younger adult templates such as those of the ICBM. Additionally, a thorough quantitative assessment of how available standardized PDw and T2w templates perform on aging population has not yet been performed. Here a new standardized high resolution PDw, T2w and T2 map templates of the MIITRA atlas dedicated for studies on older adults was developed using concepts of super-resolution and sparse-representation and compared to other available standardized templates in terms of image quality, inter-subject spatial normalization accuracy and representativeness of the older adult brain.
Principal Spectra Analysis by Linear Modeling (PSALM)
Authors: Saunders Alexander , Blüml Stefan
Published: August 2023

We hypothesized in vivo MR spectra can be sufficiently described by spectra representing predominant cell/tissue types rather than individual metabolites. We sought to extract two putative basis spectra of grey matter and white matter from 584 single-voxel 3T MR spectra using the principal spectra analysis by linear modeling (PSALM) custom algorithm. Two extracted PSALM bases explained >95% of fit variance; principal component analysis required 6-8 components to achieve the same. We found the algorithm produced high signal-to-noise, low linewidth basis spectra that robustly fit in vivo spectra from normal brain.
Increased hippocampal cerebrospinal fluid fraction is associated with episodic verbal learning and memory deficits in multiple sclerosis
Authors: Nguyen Thanh , Zhou Liangdong , Sweeney Elizabeth , Marcille Melanie , Gauthier Susan , Wang Yi , Li Yi
Published: August 2023

We applied FAST-T2 multi-component T2 relaxometry to 145 MS patients and found that the mean hippocampal CSF fraction, a measure of glymphatic clearance dysfunction in the hippocampus, was negatively associated with verbal learning and memory performance measured by the California Verbal Learning Test after adjusting for age, sex, MS phenotype, disease duration, and log total lesion volume.
EPI with Parallel Imaging (eπ2) self-calibrates the image distortion due to B0 field inhomogeneity
Authors: Lee Hong Hsi , Bilgic Berkin , Huang Susie
Published: August 2023

Correcting image distortions in echo-planar-imaging (EPI) due to B0 field inhomogeneity usually requires additional acquisitions, such as a B0 field map or blip-up-blip-down image pair. Interestingly, susceptibility distortions in EPI with parallel imaging can be corrected by leveraging the mismatch in phase-encoding polarity and/or effective echo-spacing between the auto-calibration-signal and under-sampled data, obviating the need for additional image acquisitions. Here we demonstrate the proposed pipeline of susceptibility distortion correction in in vivo diffusion MRI data of a healthy subject, and the results and estimated field values are comparable with the conventional method.
Vortex ring reveals a novel non-invasive hemodynamic biomarker associated with the location of maximum pressure drop in arterial stenosis
Authors: Kazemi Amirkhosro , Callahan Sean , Nath Ruponti , Stoddard Marcus , Amini Amir A.
Published: August 2023

We propose vortex ring as a new indicator of the location of maximum pressure drop along a phantom model of arterial stenosis. We investigated details of the flow structure of post stenotic jet with presence of the vortex ring in stenotic phantoms with 87% reduction in area using CFD velocities and 4D flow MRI. The pressure, velocity, and vorticity fields were quantitatively analyzed with the presence of the vortex ring in the spatiotemporal domains. It was found that the location of the vortex ring is associated with the location of the maximum pressure drop, axial velocity, and vorticity magnitude.
Comparison of 4D, 2D, and 1D phase-contrast MRI quantification of aortic pulse wave velocity in healthy adults
Authors: Englund Erin , Fujiwara Takashi , Jarvis Kelly , Markl Michael , Enge Daniel , Reusch Jane , Barker Alex
Published: August 2023

Pulse wave velocity (PWV) is an important measure of cardiovascular health, related to vascular stiffness. Aortic PWV can be evaluated with a variety of MRI methods, however a direct comparison of PWV results quantified from 4D flow, 2D phase contrast (PC), and 1D projection PC MRI has not been performed. Here, PWV derived from 4D, 2D, and 1D-PC MRI acquisitions and associated analysis strategies were compared in the aortic arch. Relative agreement was observed among methods. 2D-PC PWV derived from the flow-area approach had substantial variability, likely due to the limited spatial/temporal resolution, and user-dependence of analysis.
Follow-up versus baseline 4D flow-derived in vivo hemodynamic parameters stratify descending aorta dissection patients with enlarging aortas
Authors: Chu Stanley , Kilinc Ozden , Weiss Elizabeth , Jarvis Kelly , Mehta Christopher , Malaisrie Chris , Hoel Andrew , Pradella Maurice , Allen Bradley , Markl Michael
Published: August 2023

Increasing aorta diameter in type B aortic dissection (TBAD) patients is associated with adverse clinical outcomes. Our study evaluates true and false lumen (TL, FL) hemodynamics (kinetic energy (KE), maximum velocity (MV), forward flow (FF), and reverse flow (RF) in baseline and follow-up thoracic aorta 4D flow (4DF) MRI. Baseline aortic diameter does not correlate with aortic growth rate, while FL-total KE, FF, and RF correlate negatively. At follow-up, larger increases in FL-total KE, total FF, KE ratio and FL-mean MV correlate positively with aortic growth rate. Investigating hemodynamic changes in follow-up 4DF may be useful for evaluating TBAD patients.
Sinusoidal oxygen respiratory paradigm for perfusion MRI
Authors: Vu Chau , Shen Jian , Choi Soyoung , Baas Koen , Wood John
Published: August 2023

Gadolinium-based Dynamic Susceptibility Contrast (DSC) MRI is a popular technique to measure brain perfusion. However, it requires the use of an invasive exogenous contrast agent which accumulates in tissue and impedes repeated measurements. To overcome the need of gadolinium injection, this study employed the noninvasive deoxygenated DSC (dDSC) technique and proposed a novel respiratory challenge paradigm which delivers a sinusoidally-modulated oxygen stimulus as an endogenous contrast to measure perfusion. We evaluated this paradigm on 10 healthy controls and compared cerebral blood flow against other perfusion MRI techniques such as gadolinium-based DSC and arterial spin labeling.
Carotid atherosclerotic plaque segmentation in multi-weighted MRI using a two-stage neural network model
Authors: Li Ran , Zheng Jie , Woodard Pamela , Abhinav Jha
Published: August 2023

Our objective of this study is to accurately segment and classify carotid atherosclerotic plaque components in a completely automated manner, based on multi-weighted MRI. Specifically, we segmented each pixel using a two-module neural network model. Furthermore, we generated segmentation uncertainty maps with a Bayesian method to evaluate the inherent uncertainty of this segmentation task.
On the optimization of 3D inflow-based vascular-space-occupancy (iVASO) MRI for the quantification of arteriolar cerebral blood volume (CBVa)
Authors: Gu Chunming , Cao Di , Miao Xinyuan , Paez Adrian , Cai Jitong , Li Yinghao , Li Wenbo , Pillai Jay , van Zijl Peter , Hua Jun
Published: August 2023

The iVASO MRI is a noninvasive approach for quantitative mapping of CBVa in the brain. It was originally developed in the single-slice mode. Recently, CBVa measured by single-slice iVASO has been validated using histological markers of arteriolar blood vessels in a mouse model. Here, we demonstrate an optimized 3D iVASO MRI protocol with a 3D turbo-field-echo (TFE) readout and a whole-brain coverage. It showed consistent CBVa measures when compared to the original single-slice iVASO. In 3D-TFE-iVASO, the imaging slab volume did not show significant effects on the measured CBVa values. CBVa measured with 3D-TFE-iVASO showed reasonable intra-subject reproducibility.
Cine MRI detects shorter cardiac rest periods in pulmonary hypertension
Authors: Lin Kai , Sarnari Roberto , Pathrose Ashitha , Gordon Daniel , Markl Michael , Carr James
Published: August 2023

The existence of pulmonary hypertension (PH) can independently shorten the length of cardiac rest periods. The length of cardiac rest periods can be used to discriminate PH patients from healthy controls.
Evaluating the clinical significance of MRI findings of Brain Herniations into Arachnoid Granulations in patients with pulsatile tinnitus
Authors: Remer Justin , Smith Eric , Villanueva-Meyer Javier , Eisenmenger Laura , Caton M. Travis , Baker Amanda , Shah Vinil , Meisel Karl , Tu-Chan Adelyn , Amans Matthew
Published: August 2023

Pulsatile tinnitus, a severely debilitating condition where a “whooshing” sound is heard with each heart beat, affects over 3 million Americans, leading to anxiety, depression and even suicide. While many there are many diseases associated with pulsatile tinnitus one common and serious condition is idiopathic intracranial hypertension. Our study is the first to show that the presence of brain herniations through arachnoid granulations into dural sinuses on MRI is significantly associated with idiopathic intracranial hypertension in patient's with pulsatile tinnitus.
Single and Multi-channel evaluations of factors that affect cartilage T1ρ and T2 quantification
Authors: zhang zhiyuan , Kim Jeehun , Lartey Richard , Winalski Carl , Li Xiaojuan
Published: August 2023

MR T1ρ and T2 have been suggested as promising imaging markers for detecting early cartilage degeneration in osteoarthritis1. However, one hurdle of applying such quantitative MRI to large clinical trials and clinical practice is the lack of standardization of data acquisition and processing. In this study, we evaluated multiple factors that affect cartilage T1ρ and T2 quantification including maximum TE, number of echoes, SNR, and fitting methods for single and multi-channel situations with simulations, phantoms and human data. Such evaluations will help to provide useful guidance in standardizing data acquisition and processing for cartilage T1ρ and T2 imaging.
Dynamic T1ρ and T2 mapping of Articular Cartilage Biochemical Recovery Post-exercise with 3T MRI
Authors: Matakas Jason , Shamah Steven , Rong Esther , Le Jenna , Sperling Karen , Wu Can , Peng Qi
Published: August 2023

Osteoarthritis (OA) is a leading cause of disability characterized by proteoglycan loss and collagen matrix disruption in the cartilage. Quantitative T1ρ and T2 mapping obtained in a static setting have been proposed to detect the biochemical changes associated with OA, which however lack the functional information of the cartilage. We here present a novel dynamic approach to elucidate biochemical recovery of knee cartilage after stair-climbing exercise with high-spatiotemporal-resolution simultaneous 3D T1ρ and T2 mapping. It could serve as an innovative, clinically feasible imaging biomarker to evaluate both biochemical and functional properties of cartilage for early OA diagnosis and prognosis.
3T Chemical Shift encoded MRI detects Bone Marrow Adipose Tissue changes In Osteoporosis with Fragility Fracture
Authors: Martel Dimitri , Leporq Benjamin , Monga Anmol , Honig Stephen , Chang Gregory
Published: August 2023

Osteoporosis (OP) is associated with low bone mass and deterioration of bone tissue microarchitecture leading to increased bone fragility and fracture risk. There are increasing pieces of evidence that bone marrow adipose tissues (BMAT) play a significant role in the pathophysiology of osteoporosis. Our aim was to assess the proximal femur BMAT composition in OP without (OP) and with history of fragility fracture (OP-Fx) and compare it to naive controls using Chemical Shift Encoded MRI.
Association of White Matter Integrity of Locus Coeruleus Pathways to Hypothalamus and Sleep Apnea in Military Mild Traumatic Brain Injury
Authors: Yeh Ping-Hong , Werner J. Kent , Song Chihwa , Srikanchana Rujirutana , Liu Wei , Kenney Kimbra , Pickett Treven , Bonavia Grant , Riedy Gerard , Ollinger John
Published: August 2023

Sleep disturbances are common following traumatic brain injury (TBI). The intent of this study is to characterize the role of the noradrenergic locus coeruleus (LC) for sleep maintenance in service members following mild TBI by associating microstructural features, derived from diffusion MRI, of the LC–noradrenergic (NA) system with objective sleep measures. We found that severity of sleep apnea, particularly in rapid eye movement stage during sleep, significantly correlated with microstructural changes in the LC pathways to hypothalamus in mTBI participants. This result suggests sleep apnea following mild TBI may be modulated by sympathetic activity via pathways interconnecting LC and hypothalamus.
Estimating Arterial Transit Time (ATT) From ASL MRI Acquired at A Single Post-Labeling-Delay Time
Authors: Camargo Aldo , Wang Ze
Published: August 2023

We proposed a novel method to compute arterial transit time from ASL MRI acquired at a single post-labeling-delay time. Using the method, we found significant difference between NC and AD subjects.
COCOA Synthesis Using Adjacent Slices for Improved Motion Artifact Correction
Authors: Bhave Sampada , Wagner Jennifer , Haji-valizadeh Hassan
Published: August 2023

A modified COCOA framework was introduced to suppress motion artifacts. The data convolution operation in COCOA was extended to include k-space neighbors in the slice dimension along with those in the slice. Regularization in the data convolution operation was used as an alternative to the data combination in COCOA. The proposed technique provided high motion artifact suppression as compared to the standard COCOA synthesis.
Deep Learning Denoising Reconstruction (DLR) Preserves Quantitative DWI and DCE Signal Intensity Measures in Prostate MRI
Authors: Do Hung , Tymkiw Brian , Berkeley Dawn , Kadbi Mo
Published: August 2023

Deep Learning Reconstruction (DLR) has recently been translated into clinical practices as a few DLR methods have received FDA 510-k clearance. Given its novelties, rigorous evaluations are essential to ensure the safety and efficacy of DLR before routine clinical use. This work aims to investigate whether DLR preserves quantitative measures from DWI and DCE prostate MRI. The results show that the average signal intensities measured from routine images are similar (less than 1% difference) to those measured from DLR images.
Multi-site harmonization of diffusion MRI data from the Adolescent Brain Cognitive Development (ABCD) Study
Authors: Cetin-Karayumak Suheyla , Zhang Fan , Pieper Steve , O'Donnell Lauren , Rathi Yogesh
Published: August 2023

This study presents our harmonization efforts on the multi-site diffusion MRI data from ~11,000 adolescents in the Adolescent Brain Cognitive Development (ABCD) study, collected at 21 sites using Siemens, GE, and Philips scanners. We validated the harmonization of the multi-site dMRI data using several standard and advanced diffusion MRI measures including Fractional Anisotropy (FA), Return-To-Origin Probability (RTOP), Return To the Axis Probability (RTAP), Return To the Plane Probability (RTPP), Mean Squared Displacement (MSD).
Intraplatform Repeatability and Interplatform Reproducibility of T1 and T2 Mapping Using a NIST System Phantom
Authors: Yu Justin , Rand Erika , Jackson Pamela , Hoxworth Joseph , Hu Leland , Swanson Kristin , Zhou Yuxiang
Published: August 2023

Quantitative magnetic resonance imaging, especially T1/T2 relaxation time mapping is increasingly used in both research and clinical practice. The purpose of this study was to assess the precision and cross-platform repeatability and reproducibility of T1 and T2 mapping modules on GE and Siemens MRI platforms, with the goal of standardization across vendors. A standard MRI quantitative phanom was scanned on four scanners, twice per scanner. GE data was processed with a custom script. Our results show high intraplatform repeatability, but showed high inter-platform discrepancies for both T1 and T2 results.
MR-Assisted PET Respiratory Motion Correction Using Deep-Learning Based Short-Scan Motion Fields
Authors: Chen Sihao , Fraum Tyler , Eldeniz Cihat , Mhlanga Joyce , Gan Weijie , Vahle Thomas , Krishnamurthy Uday , Faul David , Gach H. , Binkley Michael , Kamilov Ulugbek , Laforest Richard , An Hongyu
Published: August 2023

Respiratory motion causes signal blurring and image artifacts. Simultaneous PET/MRI allows for MR-assisted motion correction (MoCo) in PET imaging, leading to improved PET images for detection and evaluation of lesions. In this study, we proposed and examined a PET MoCo approach using motion vector fields (MVFs) from a deep-learning reconstructed MRI scan. MRI-based MVFs were derived from either 2000 spokes (MoCo2000, 5-6 minutes acquisition time) using a Fourier transform reconstruction or 200 spokes (MoCoP2P200, 30-40 seconds acquisition time) using a deep-learning Phase2Phase (P2P) reconstruction and then incorporated into PET MoCo reconstruction.
Acceptance Procedure for the MRI Component of the 1.5T MRI-Linac
Authors: Deng Jie , Shen Chenyang , Visak Justin , Godley Andrew
Published: August 2023

On two Unity MRI-Linac systems simultaneously installed in our institution in May 2021, we developed and implemented the acceptance and commissioning testing for the MRI component independently. We also worked together with the vendors during troubleshooting and re-testing processes. The comprehensive acceptance testing consisted of 4 phases: basic testing using vendor-provided tools, advanced testing, Linac system influence on MRI, and end-to-end testing for treatment planning and dose delivery. Both Unity machines successfully passed the MRI component acceptance testing in consideration of influence of the Linac component. MR-to-MV alignment defect on one system was fixed after major work of troubleshooting.
Evaluation of a prototype MR conditional hoverboard and stirrups system for MR-guided brachytherapy at 3T
Authors: Kaza Evangelia , Nicholson Bret , Anderson Kevin , Drake Jesse , Marques Alex , Hatch Steven , Bredfeldt Jeremy , King Martin , Sudhyadhom Atchar
Published: August 2023

MR conditional stirrups would be beneficial in MR-guided gynecological and prostate brachytherapy but have not been clinically available. Evaluation of a prototype Diacor MR conditional board and stirrups system revealed no significant projectile or heating risks at 3T. The maximum temperature measured on its metallic surfaces after scanning was 22 ⁰C, relating to a 3 ⁰C increase. The stainless steel blades of the stirrup joints caused signal cancellation artifacts which extended radially up to 23cm on phantom images. On volunteer scans, artifacts were observed in posterior hip areas only. Pelvic organ visualization was considered suitable for brachytherapy treatment planning.
Concomitant Field Effects on Asymmetric Gradient Systems: Impacts on Slow Flow Imaging
Authors: Abad Nastaren , Lee Seung-Kyun , Hua Yihe , DeMarco J. Kevin , Shih Robert , Hood Maureen , Morris H Doug , Ho Vincent , In Myung-Ho , Bernstein Matt , Foo Thomas
Published: August 2023

This study investigates concomitant gradient field effects on gradient echo phase contrast imaging when visualizing very slow (<50 mm/s) flow. The impact of real-time concomitant field compensation and the consequence of uncompensated higher-ordered terms is shown.
Higher-order image reconstruction with integrated gradient nonlinearity correction using a low-rank encoding operator
Authors: Lee Nam , Keskin Kübra , Zhao Ziwei , Nayak Krishna
Published: August 2023

Conventional MR image reconstruction relies on the assumption of perfectly linear gradient fields. However, the gradient fields contain spatially varying nonlinear components. We present a higher-order image reconstruction method that incorporates a theoretical model of gradient nonlinearity without any external field monitoring device. This approach utilizes the separability of Fourier encoding in Cartesian imaging and employs a low-rank approximation only to the higher-order readout encoding matrix, allowing a memory-efficient implementation suitable for large FOVs. Image distortions due to gradient nonlinearity were successfully mitigated by the proposed method using axial/sagittal/coronal 2D Cartesian datasets acquired on a prototype 0.55T MRI system.
SAR Considerations of MRI Patients with Implanted Deep Brain Stimulator
Authors: Wong Jia Hui , Nyein Ei Ei
Published: August 2023

Magnetic Resonance Imaging (MRI) has been a widely used modality in patients with Deep Brain Stimulator (DBS) for a variety of neurological diseases. Radiofrequency heating still presents as a major concern in patient’s safety and exists as the most common limiting factor. This poster would help individuals to gain a deeper understanding about the importance of SAR considerations in patients with DBS whilst undergoing MRI without compromising patients safety and scan quality.
Radial-Cartesian K-Space Acquisition for Consistent High-Resolution and High-Quality Knee MRI
Authors: Rajamani Sajith , Agarwal Harsh , Heinlein Jeremy , Venkatesan Ramesh
Published: August 2023

Knee MRI is the most common Musculo-skeletal MRI [1]. It is a non-invasive tool for the evaluation of disorders such as meniscal, ligamental, soft tissue, bone and bone marrow injuries and abnormalities. Acquisition of a high-resolution and high-quality MRI is key to boost the confidence of the radiologist in diagnosis. In this manuscript we have presented how radial MRI, commercially referred to as PROPELLER (GE)/ BLADE (Siemens)/ MULTIVANE (Philips) etc. parameters, patient positioning and immobilization can be adapted for the available hardware such as receiver coil to yield high-resolution and high-quality knee MRI.
Influence of arm position on proton density fat fraction in vertebral bone marrow using chemical shift-encoded magnetic resonance imaging
Authors: Hayashi Tatsuya , Yano Shimpei , Shibukawa Shuhei , Ito Toshimune , Kojima Shinya
Published: August 2023

Reports have shown radio frequency magnetic field (B1) inhomogeneity during spine imaging. Proton density fat fraction (PDFF) measurement using chemical shift-encoded magnetic resonance imaging has been performed using a low flip angle to avoid T1 bias. However, differences in arm positions during MRI can cause changes in B1 heterogeneity. This study evaluated the influence of arm position (side and elevated arm positions) on the PDFF obtained from the lumbar spine, where B1 heterogeneity tends to occur. The PDFF was slightly but significantly higher in the elevated arm position than in the side arm position.
Evaluation of the characteristics of magnetic detectors and metal detectors for MRI examinations
Authors: Hayashi Norio , Kato Yutaka , Okawa Ryuya , Deguchi Yuuki , Yahata Seiji , Kobayashi Shinsuke , Takahashi Tetsuhiko
Published: August 2023

The purpose of this study is to evaluate magnetic detectors and metal detectors to understand their performance and characteristics. The measurement objects were smartphones, disposable pocket warmers, scissors, ballpoint pens, safety pins, and hair bands with rings. The detection performance of each object was examined at several facilities using a gate-type, a pole-type and, a handheld-type magnetic detectors and a handheld-type metal detector. There were differences in detectability depending on the size and type of magnetic material. The sensitivity range and objects that are easy to detect may also differ depending on the type of detector.
ANALISIS DESKRIPTIF KINERJA PETUGAS PENDAFTARAN DAN DUPLIKASI PENOMORAN REKAM MEDIS DI RSUD dr.R.SOEDARSONO KOTA PASURUAN
Authors: Yasmin Maulia , Rakhmawati Fitria , Gusti Titis Eka
Published: August 2023

Angka kinerja petugas dan duplikasi penomoran rekam medis di Indonesia masih tergolong rendah. Salah satunya terjadi di RSUD dr.R.Soedarsono Kota Pasuruan. Dimana hasil studi pendahuluan menunjukkan bahwa selama empat bulan terakhir yaitu pada bulan Juli sampai bulan Oktober sebanyak 46 berkas rekam medis yang mengalami duplikasi dan untuk petugas pendaftaran masih banyak yang lulusan SMA. Tujuan penelitian ini untuk menganalisis kinerja petugas pendaftaran dan duplikasi penomoran rekam medis di Rumah Sakit Soedarsono Kota Pasuruan. Jenis penelitian adalah kuantitatif deskriptif dengan metode pendekatan studi retrospektif. Sampel penelitian ini berjumlah 148 berkas rekam medis pasien baru pada bulan Juli sampai Oktober dan 16 petugas pendaftaran. Teknik pengumpulan data menggunakan lembar kuesioner, wawancara, observasi dan analisis data menggunakan analisis univariat. Hasil penelitian menunjukkan kinerja petugas tidak baik 81,3% (13 petugas), dan baik 18,7% (3 petugas). Sedangkan duplikasi penomoran rekam medis 31,1% (46 berkas), dan tidak duplikasi 68,9% (102 berkas). Kesimpulan penelitian ini adalah kinerja petugas pendaftaran dan duplikasi penomoran rekam medis di RSUD dr.R.Soedarsono Kota Pasuruan masih cukup tinggi.
Analisis Profiling Surat Wasiat Bunuh Diri Ibu Paruh Baya: Studi Kasus Linguistik Forensik
Authors: Diliana Ekfindar , Klau Ricardo Goncalves
Published: August 2023

This study intends to (1) identify the features of language in a middle-aged mother named Pini's suicide will in Talang Village, Sendang District, Tulung Agung on October 23, 2022, and (2) identify the motive for suicide in this case. This study is a qualitative descriptive study that analyzes language aspects using Osslon's (2008) forensic linguistics theory. The investigation yielded (1) the language elements in Pani's suicide will, written by a 41-year-old woman in Tulungagung, were a text structure with certain characteristics that are common in suicide notes, as stated by prokofyeva (2013), there were many spelling, punctuation, and letter errors capital, the use of the pronoun 'aku', and grammar which used a lot of declarative sentences (commands), and some of the emotions implied by the words in the will show emotions of doubt, despair, and the actors' desperation stems from a lack of self-control in the face of unforeseen occurrences. In this scenario, it's conceivable that she was stressed out because her ex-husband remarried. (2) While the perpetrator's suicide was considered to be motivated by mental problems such as depression. This could be seen in various word choices that demonstrated the players' desperation as a result of their inability to control themselves in unforeseen situations. In this scenario, it's conceivable that she was stressed out because her ex-husband remarried. Furthermore, the offender feels alone and without family support; this is classified as egoistic suicide due to a lack of social engagement with people closest to them.
Analisis Kesulitan Belajar Matematika pada Materi Jarak, Waktu, dan Kecepatan di Kelas 5 SD
Authors: Unaenah Een , Nuraeni Eni , Asmoro Shifa Nur
Published: August 2023

This study attempts to discover whether primary school students who are learning mathematics can solve issues involving distance, time, and speed and comprehend the solution, also whether there are any difficulties they encounter. Quantitative Descriptive research is this kind of study. This study aims to test students' knowledge of speed, distance, and time. It also conducts an interview with the instructor. Analyzing, interviews, tests, and documentation are among the ways used to acquire data. As for the descriptive methodology used in this study. The results of the student workmanship test were used to gather information about the challenges students encountered when solving math problems involving distance, time, and speed. The test's difficulty was a sign of students' lack of comprehension of the concepts of distance, time, and speed. Regarding the requirements for teacher interviews. The goal of interviewing teachers is to understand more about mathematics learning activities including distance, time, and speed as well as common errors made by pupils while attempting to solve problems using these concepts. According to the study's findings, arithmetic proficiency in the areas of time, distance, and speed in grade 5 SD is 80.06% in average, placing it in the "Very High" category. This problem arises dute to the basic mathematical abilities in the areas of distance, time, and speed have not yet been attained. Factors that lead to mistakes when working on test questions, internal factors, and external variables are some of the elements that make it difficult to master mathematics in the subject of distance, time, and speed. The requirement for specialised instruction as enrichment and healing (remedial), employing inventive and creative teaching methods, and developing conditioning (reinforcement, rewards, encouragement), exercises, are all recommendations for resolving the issue of learning challenges in distance, time, and speed.
Syphilis in Hematopathology Practice: A Diagnostic Challenge
Authors: Gutierrez-Lanz Efrain , Smith Lauren B. , Perry Anamarija M.
Published: August 2023

Context.—

Syphilis, a reemerging disease caused by the spirochete Treponema pallidum, is becoming more frequent in surgical pathology and hematopathology practices. Hematopathologists typically receive lymph node biopsies from patients with syphilis who have localized or diffuse lymphadenopathy. Occasionally, syphilis infection in the aerodigestive tract can show a prominent lymphoplasmacytic infiltrate and mimic lymphoma. Besides the varying and occasional atypical morphology, the fact that clinical suspicion tends to be low or absent when histologic evaluation is requested adds to the importance of making this diagnosis.

Objective.—

To summarize histologic features of syphilitic lymphadenitis and syphilis lesions in the aerodigestive tract, and to review differential diagnosis and potential diagnostic pitfalls.

Data Sources.—

Literature review via PubMed search.

Conclusions.—

Characteristic histologic findings in syphilitic lymphadenitis include thickened capsule with plasma cell–rich inflammatory infiltrate, reactive follicular and paracortical hyperplasia with prominent lymphoplasmacytic infiltrate, and vasculitis. Lymph nodes, however, can show a number of other nonspecific histologic features, which frequently makes the diagnosis quite challenging. In the aerodigestive tract, syphilis is characterized by plasma cell–rich infiltrates. Immunohistochemistry for T pallidum is the preferred method for detecting spirochetes; however, this immunohistochemical stain shows cross-reactivity with other treponemal and commensal spirochetes. Differential diagnosis of syphilis in lymph nodes and the aerodigestive tract is broad and includes reactive, infectious, and neoplastic entities. Pathologists should be aware of the histologic features of syphilis and keep this challenging entity in the differential diagnosis.
Accuracy Comparison of Data Mining Methods for Internet Gaming Disorder Classification
Authors: Juwita Juwita , Junidar Junidar , Mutiawani Viska , Nurdin Zahnur , Zainuddin Zul Ikram
Published: August 2023

Excessive access to online games by players can lead to addiction. Online game addiction can be detected through various ways including self-report questionnaires. Based on the value of the answers in the questionnaire a person can be categorized into groups, mild addiction, moderate addiction and severe addiction. Generally, this assessment calculation is done manually or through procedural programming languages. This is not efficient for processing more and more data, for that the mechine learning classification model is applied to solve the problem of program code repetition. This study compared the performance of three mechine learning methods against two different types of questionnaires, namely questionnaires with Likert scale and questionnaires with yes no type. The case study used in this study is online game addiction among high school students in Banda Aceh City, Indonesia. This research successfully proved that the algorithm ... It is better to use questionnaires with data types...., while algorithms....are better to use for questionnaires with types.....with the accuracy of the three algorithms are as follows. This study reveals the emergence of online game addiction, especially among high school students within Banda Aceh city. The results depicted that as many as 6% of high school students in the city of Banda Aceh indicated experiencing online game addiction based on their reports. Another objective of this research is to find the best accuracy between Naive Bayes and Support vector machine (SVM) in classifying the severity of the online game. It found that SVM accuracy was higher than Naive Bayes for the case of online game addiction level classification in high school students in Banda Aceh. This study provided baseline data for further research.
Human Resource Management In Special Education
Authors: Lantang Dani , E M Sumual Tinneke , Jeini Usoh Elni , Robert Tuerah Paulus , D M Sumual Shelty
Published: August 2023

Human resources need to be managed properly so that they can play a role in accordance with their functions. That is why there is a need for human resource management. Human resource management is a process related to the implementation of human resource management or management functions which are directly handed over to the school education unit to be developed in accordance with the potential possessed by the school.  The scope of human resource management includes: employee planning; employee procurement; employee coaching and development; promotion and mutation; dismissal of employees; compensation, and employee assessment. All of that needs to be done properly and correctly so that what is expected can be achieved
HIPPMA Social Movement (Himpunan Pensiunan Perkebunan Maju Bersama) In Fighting For The Rights Of Retired PTPN II Workers
Authors: Christie Yosalin Manihuruk Angela
Published: August 2023

Indonesia is one of the countries in the world that has a large number of workers. The increasing number of workers turns out to make conflicts between workers and companies more frequent. Not only workers, retired workers also experience problems with companies because their rights are not fulfilled. This paper analyzes and describes the social movement HIPPMA (Association of Plantation Pensioners Maju Bersama) to fight for the rights of retired workers. The research method used in this study is using a qualitative approach with a descriptive method. Data collection techniques are carried out by means of interviews and observations as well as literature studies and are interpreted based on the support of literature reviews so that a conclusion can be drawn. Theories about social movements and resource mobilization are used as analytical tools. The results showed that social movements are fundamental as a forum for workers to convey their aspirations. The difference between this HIPPMA organization and others is that the HIPPMA organization has a membership of PTPN II retirees and has different rights issues but they still fight together for these different rights. Social movements do not always reach destruction because in this HIPPMA organization they have high solidity and struggle for 20 years. Some of the successes of the HIPPMA social movement are already visible. The results that have been obtained are SHT (Old Age Compensation) for pensioners in 1991-1999 has been paid off by PTPN II, the issuance of BPN Decree number 42, 43, 44 / HGU / BPN / 2002 concerning Ministerial Decree 42 which issued 558.35 Ha of land for plantation pensioners. In addition, members of the HIPPMA organization have protection from the police, legal entities and government by issuing valid letters from the government so that retired plantations of the HIPPMA organization until now have not been evicted.
Impact Of Poetic Style For Pronunciation: A Systematic Literature Review
Authors: Wahyu Ariningsih Tri
Published: August 2023

Linguistics' field of pronunciation studies how words are pronounced and their intended meanings, arrangement, and classification of sounds as linguistic components. Then pronunciation is often associated in the pronunciation of a poem. It started with an oral tradition because previously poetry was made to be performed. Focusing on the phonemic inventory of poetry, several studies have found a non-arbitrary relationship between the frequency of occurrence of certain phoneme classes and the "emotional meaning", or emotional connotation of certain phonemes and their influence on the perception of the emotional tone of poetry. This research is classified as a collective enterprise and non-experimental descriptive research.  PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-analyses) was used in this study to collect data as part of the Systematic Literature Review (SLR). There were 113 data collected from various accredited and Scopus indexed sources such as Elsevier were mobilized to search the data. There are several papers that eliminated by problem topic, publication criteria, and the main outcome, namely the relationship between poetry and pronunciation in writing, 1 journal left. The main key keyword is also obtained, namely "additional language-learner". Then to determine the influence of poetic style on pronunciation, the author identified it through the use of rhyme and rhythm as well as physical engagement, this technology was able to capture "micro-moments" of peer-to-peer learning, illustrating how these techniques might be used to successfully engage students whose first language was not being used in the classroom.
Rolul serviciilor de informații în război
Authors:   Romanian Academy, Sfetcu Nicolae
Published: August 2023

Serviciile de informații joacă un rol crucial în orice război, servind adesea ca forță nevăzută care poate înclina balanța în favoarea victoriei sau înfrângerii. Ele furnizează factorilor de decizie militare informații și perspective esențiale, permițându-le să înțeleagă inamicul, să planifice operațiuni strategice și să facă alegeri informate pe câmpul de luptă. Războiul ruso-ucrainean a exemplificat rolul critic al informațiilor în modelarea cursului conflictelor moderne. În acest conflict în desfășurare, informațiile în timp util și exacte furnizate de serviciile de informații sunt cruciale pentru protejarea intereselor naționale, a stabilității regionale, și formularea unor răspunsuri eficiente la peisajul securității în evoluție. Pe măsură ce războiul ruso-ucrainean continuă, serviciile de informații vor rămâne actori cheie în modelarea rezultatelor și în deschiderea drumului către o soluție pașnică.
Botox: Beauty and Brains
Authors: Deremer Donell D.
Published: August 2023

Botulinum toxins (BTX), predominately BotulinumtoxinA, have been used for medical and aesthetic purposes since 1997. With nearly eight billion treatments performed worldwide for aesthetic purposes alone, there is extensive post-market experience with this drug. The known mechanism of action (MOA) of the local neurotransmitter blockade of acetylcholine lasts approximately 90 days. However, patients frequently report symptom and wrinkle relief beyond the 90-day period.

There is extensive evidence that peripherally injected BTX, even at low aesthetic doses, induces structural and functional changes in the human brain. The MOA in the central nervous system (CNS) is presently unclear, with several proposed hypotheses to include the Social Feedback Hypothesis (SFH), Facial Feedback Hypothesis (FFH) and Emotional Proprioception (EP), Monoamine Theory and Brain-Derived Neurotrophic Peptide (BDFP), and Neuronal Transport Hypothesis.

With the ability to modify the CNS, BTX for aesthetic use may become a novel treatment for CNS disorders, such as major depressive disorder (MDD). Over 30% of persons diagnosed with MDD had inadequate response to first-line treatments. Over 30% of persons diagnosed with treatment resistant depression (TRD) attempt suicide. BotulinumtoxinA may offer an effective adjunctive treatment of MDD/TRD.
Sanksi Hukum Korupsi dalam Islam
Authors: Abbas Afifi Fauzi
Published: August 2023

Hukum Islam dalam suatu masyarakat manapun dan dimanapun, adalah bertujuan untuk mengendalikan, mengatur, dan sebagai alat kontrol masyarakat, ia adalah sebuah system yang ditegakan, terutama untuk melindungi individu maupun hak-hak masyarakat. Dengan demikian, segala perbuatan atau tindakan yang bisa mengancam keselamatan salah satu dari kelima hal pokok teersebut, maka patut dianggap sebagai tindak kejahatan (delik) yang dilarang, dan untuk melindungi dan memelihara kelima hal pokok tersebut dan kemaslahatan manusia pada umumnya, Islam menetapkan dan menegaskan sejumlah peraturan-peraturan, baik berupa perintah maupun larangan, dan dalam hal tertentu aturan-aturan tersebut disertai dengan ancaman hukuman atau sanksi duniawi dan/atau ukhrawi, jika peraturan tersebut dilanggar.
Manhaj Tarjih dan Perkembangan Pemikiran Keislaman
Authors: Abbas Afifi Fauzi
Published: August 2023

Banyaknya tipologi pemikiran Islam tidak lain adalah  sebagai gambaran tentang betapa kayanya respon intelektual keagamaan Islam dalam merespon dan menyikapi  berbagai  budaya modernitas,  yakni  budaya yang  sangat  menggaris  bawahi peran ilmu pengetahuan dan teknologi. Yang  jelas berbagai tipologi pemikiran itu  tidaklah akan mereda atau surut, akan tetapi akan berkembang  terus tanpa  henti mengikuti perubahan zaman. Budaya modernitas tersebut tidak saja merubah keberadaan  dunia  lingkungan fisik material,  tetapi  sekaligus juga  merubah  mentalitas, cara berfikir dan way  of  life sekaligus. Makalah disampaikan pada acara Temu Karya Tarjih, Perkembangan Pemikiran Keislaman antara Purifikasi dan Dinamisasi,yang dilaksanakan oleh PSIK UMJ dan Majlis Tarjih PWM DKI Jakarta, Sabtu 15 Juni 1996 di Kampus UMJ Jakarta.
Critical Discourse Analysis of English in New Media
Authors:   Batangas State University-Alangilan, Batangas City, Batangas, Philippines, B. Laylo Myra Clarisse , Q. Velasco Dr. Cecilia ,   Graduate Studies and Applied Research, Laguna State Polytechnic University-SPCC, San Pablo City, Laguna, Philippines
Published: August 2023

Social media's impact on the English language has significantly changed how language is viewed and used as modern online communication emerges. The English language setting has seen various shifts as a result of internet accessibility. Through the use of critical discourse analysis, this study investigated the impact of social media on a group of first-year college students at Batangas State University-The National Engineering University's English language competency. It investigated a sample of respondents' social media preferences, usage patterns, and purposes. The results show that social media platforms like Facebook, Twitter, and Instagram are mostly used for communication by 18 to 19-year-old females, and their utilization is conceived to have an impact on English language proficiency. Meanwhile, the morphosyntactic and code-mixing features of English in online discourses are made explicit by the thematic analysis of the respondents' collected online postings and messages, highlighting the developments and processes. The study's overall finding was that the internet has established a significant impact on language by fostering creativity, hybridization, and adaptability to new communicative environments.