bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation methods for intrauterine growth using neonatal fat stores instead of birth weight as outcome measures: Fetal and neonatal measurements correlated with neonatal skinfold thicknesses
Authors: Sumners James E. , Findley Gatchina M. , Ferguson Karen A. 
Published: February 2007

AbstractNeonatal anthropometry, including timed skinfold measurements, was performed on 55 products of selected pregnancies. These skinfold measurements were compared with published standards of measurements obtained by similar techniques. Values outside the 3rd percentile to 97th percentile range were overlaid on the birth weight/menstrual age relationship of these subjects. Seven of 10 subjects with the lowest midtriceps skinfolds weighed more than 2500 g at birth (2 more than 3500 g) and 2 of 4 with the largest midtriceps skinfold had birth weights less than 4000 g. This comparison emphasizes the imprecision of birth weight as a measure of quality of fetal growth. Since skinfold thickness measurement is cumbersome for clinical use, other neonatal measures that may be more readily available to the clinician were examined for correlation with skinfolds. Simple birth weight/crown–heel length ratio was found to have the closest relationship of the parameters examined. Although estimated fetal weight was found to be the ultrasonography‐derived parameter best correlated with skinfold thickness, ultrasonography discriminated poorly between babies with normal and low skinfolds. Low skinfold thickness predicted thermal vulnerability in the nursery better than did birth weight.
Recording of blood flow velocity waveforms in the uteroplacental and umbilical circulation: Reproducibility study and comparison of pulsed and continuous wave Doppler ultrasonography
Authors: Gudmundsson Saemundur , Fairlie Fiona , Lingman Göran , Maršál Karel 
Published: February 2007

AbstractReproducibility of the blood flow velocity waveforms (FVW) recorded from the umbilical artery and the arcuate arteries on the right and left side of the placenta was examined in 8 women with normal pregnancies and anterior placentas. The FVW were recorded using a 2‐MHz pulsed Doppler ultrasound system in combination with a real‐time linear‐array scanner. The FVW were characterized by the pulsatility index (PI) and systolic/diastolic (S/D) ratio. For the PI, the mean coefficients of variation between six operator pairs in the umbilical artery and the left and right arcuate arteries were 8.4%, 26%, and 21.5%, respectively. These findings suggest that, in clinical practice, the umbilical artery FVW is reproducible, but the usefulness of arcuate artery FVW is limited by the wide variation of Doppler signals.Paired recordings of FVW were obtained from the umbilical, arcuate, and uterine arteries using pulsed wave and continuous wave Doppler ultrasonography in a randomized order in another 21 pregnant women with anterior placentas. There was no difference between the two Doppler modes for any of the measured waveform indices.
Sonographic features of colonic Crohn's disease: Comparison of in vivo and in vitro studies
Authors: Limberg Bernd 
Published: February 2007

AbstractThe entire length of the colon, starting at the recto‐sigmoid junction and ending at the cecum, can be sonographically visualized by retrograde water instillation into the colon. In order to evaluate the validity of colonic sonography as a diagnostic method, in vivo transabdominal ultrasound examination of the colon wall after water insufflation was compared with in vitro ultrasound examinzition of the same colon wall on four resected surgical specimens from patients with colonic Crohn's disease and four controls. The normal colon wall specimens were easy to recognize in that they had a thickness of 4 mm and five layers of different echo patterns, which could be demonstrated both in vivo and in vitro. On the other hand, in patients with Crohn's disease, a distinct wall thickening of up to 1.5 cm was found, and the typical five‐layer stratification could no longer be recognized. The sonographic changes demonstrated in vivo and in vitro were thus comparable both in wall thickness and wall structural alterations. This study shows that transabdominal colonic sonography of the fluid‐filled colon is a diagnostic method that permits a detailed and accurate assessment of the normal and the pathologically changed colonic wall.
Definition of anatomical planes for use in transvaginal sonography
Authors: Dodson Melvin G. , Deter Russell L. 
Published: February 2007

AbstractPlanes frequently used to identify radiologic and abdominal ultrasono‐graphic images such as transverse, coronal, and sagittal are generally not anatomically correct when applied to transvaginal ultrasonographic planes and images. More appropriate terminology specific for the planes imaged during transvaginal ultra‐sonography, such as TRANS‐pelvic and AP‐pelvic planes, are suggested. A TRANS‐pelvic plane refers to a plane imaged when the sound beam is directed across or from side to side in the pelvis. An AP‐pelvic plane refers to an image obtained when the sound beam is directed anteriorly and posteriorly.
Pleural effusion: An “acoustic window” for sonography of pleural metastases
Authors: Goerg Christian , Schwerk Wolf‐B. , Goerg Konrad , Walters Eddy 
Published: February 2007

AbstractWe report the sonographic findings in 32 patients with malignant disease associated with pleural effusions diagnosed by chest roentgenograms. No tumor lesions were seen in any case on X‐ray films. Thoracic sonography, however, detected previously undocumented metastatic disease with diaphragmatic (N = 19), parietal (N = 8), visceral (N = 2) or combined (N = 3) pleural involvement. Additionally, a distinction could be made between nodular lesions (N = 19), sheet‐like tumor masses (N = 10), and combined (N = 3) tumor spread. In all cases thoracentesis was performed. Cytology showed malignant cells in 28 patients. Pleural metastasis was histologically confirmed by ultrasound‐guided fine needle biopsy in 2 cases. The present study demonstrates the value of scrutinized thoracic sonography in patients with pleural effusion for the detection of pleural metastases.
Ultrasound findings in perihepatitis associated with pelvic inflammatory disease
Authors: Schoenfeld Alex , Fisch Benjamin , Cohen Maja , Vardy Michael , Ovadia Jardena 
Published: February 2007

AbstractThe width of the right anterior extrarenal tissue was increased on ultrasound examination in 9 patients with perihepatitis (Fitz‐Hugh‐Curtis syndrome). Normal values were obtained in 72 women without detectable or known disease and were found to be between 1 mm and 5 mm (mean 1.8 mm). The 9 patients with laparoscopically verified perihepatitis who demonstrated this thickening had values ranging from 6 mm to 12 mm, (mean 7.7 mm). Although the incidence of this inflammatory thickening in perihepatitis is not known, its value is that in its ultrasonic demonstration a careful search should be made for inflammatory disease in structures related to the anterior pararenal space.
Ultrasound imaging in tropical pancreatitis
Authors: Moorthy T. R. Kapila , Nalini N. , Narendranathan M. 
Published: February 2007

AbstractTropical pancreatitis differs in many respects from the chronic pancreatitis seen in Western countries. The present study was carried out to evaluate the role of ultrasonography in the diagnosis of tropical pancreatitis (TP) and to characterize the ultrasound findings in tropical pancreatitis. Patients referred with a suspected diagnosis of tropical pancreatitis formed the subjects for the study. Plain x‐rays of the abdomen, ultrasonography, and endoscopic retrograde cholangio‐pancreatography (ERCP) were carried out in all cases. Of the 25 cases, 17 patients had ERCP evidence of pancreatitis. Duct dilatation (82%) and demonstration of calculi were the most common ultrasound findings. Pancreatic atrophy (53%) was also a major feature of TP. Compared with ERCP, ultrasonography had a sensitivity of 94% and a specificity of 100%. Only one case with mild changes in ERCP was missed by ultrasonography. For the diagnosis and planning of surgery in TP, ultrasonography can replace ERCP. Even complications like cysts and malignancies are detected by ultrasonography.
The assessment of normal early pregnancy by transvaginal color Doppler ultrasonography
Authors: Kurjak Asim , Crvenkovic Gordon , Salihagic Aida , Zalud Ivica , Miljan Mladen 
Published: February 2007

AbstractTransvaginal color Doppler was performed in 198 volunteer pregnant women whose menstrual age ranged from the fifth to the twelfth week. In all patients an attempt was made to obtain signals from both uterine arteries, peritrophoblastic/retroplacental vessels, umbilical arteries, fetal aorta, intracranial vessels, and corpus luteum flow.With the combination of color and pulsed Doppler transvaginal sonography, detection of vascular structures was greatly facilitated and the amount of time for examination significantly reduced. Flow velocity waveforms were measured and results were analyzed by calculation of the Resistance Index.During the early stage of pregnancy, we were able to locate both uterine arteries in all cases and continuous diastolic shift signal was found. Flow in the peritrophoblastic/retroplacental area was observed with an overall success rate of 94%. Blood flow in the umbilical artery and fetal aorta was visualized by color Doppler starting from the seventh week. Intracranial blood flow could be visualized starting from the tenth week in some cases. Diastolic flow in these vessels was detectable starting from the twelfth week. Corpus luteum flow was found in 148 cases (75%) and the Resistance Index decreased as pregnancy progressed © 1993 by John Wiley & Sons, Inc.
Ultrasonographic scoring system: An auxiliary to differential diagnosis of gastric pathologies
Authors: Boyacioǧ Sedat , Dolar Enver , Acar Yaşar , Dalay Remzi , Temuçin Gülay 
Published: February 2007

AbstractIn a prospective clinical study, 64 patients with gastric pathologies (27 malignant and 37 benign) were examined ultrasonographically. Gastric wall layer changes, gastric wall thickness, lesion length, and protrusion into the lumen were evaluated. A scoring system was defined based on the distribution of these parameters and the score of each patient was calculated retrospectively. Six of the malignant cases had scores in the benign range and 3 of the benign cases had scores in the malignant range. Sensitivity of this scoring system in terms of detecting malignancy was 78% and specificity 92%. The positive predictive value was 88%, the negative predictive value was 85%, and overall diagnostic accuracy was 86%. This scoring system was considered to be a useful aid in the differential diagnosis of gastric pathologies. © 1993 John Wiley & Sons, Inc.
The management of ovarian cysts by sono‐guided transvaginal cyst aspiration
Authors: Lee Chyi‐Long , Lai Ying‐Ming , Chang Shiuh‐Yang , Chang Ming‐Yang , Shueh Swei , Soong Yung‐Kwei 
Published: February 2007

AbstractNineteen transvaginal, sono‐guided ovarian cyst punctures were performed in 18 patients. These patients, who were high surgical risks, were diagnosed to possess benign ovarian tumors as revealed with sonography. Aspiration curettage of the inner surface of the cyst present during aspiration was also performed to facilitate cytologic diagnosis. The recurrence rate was 11.1%. Sono‐guided transvaginal cyst aspiration has been demonstrated here to be the treatment of choice for dealing with an ovarian cyst in patients at high surgical risk. © 1993 John Wiley & Sons, Inc.
Investigation of abnormal first‐trimester gestations by color Doppler imaging
Authors: Jaffe Richard 
Published: February 2007

AbstractColor Doppler imaging was employed to assess the uteroplacental circulation in abnormal first‐trimester gestations. Included in the study were 40 blighted ova, 35 missed abortions, 10 trophoblastic diseases, and 3 ectopic gestations. Normal gestations served as a control group. Flow was detected more frequently in the blighted ova than in the missed abortions. Flow was detected in all cases of trophoblastic disease and ectopic gestations. Resistance to flow was significantly lower in the trophoblastic group as compared to the other groups. © 1993 John Wiley & Sons, Inc.
Transabdominal ultrasonographic evaluation of endometrial thickness in clomiphene citrate‐stimulated cycles in relation to conception
Authors: Wolman Igal , Sagi Joseph , Pauzner David , Yovel Israel , Seidman Daniel S. , David Menachem P. 
Published: February 2007

AbstractThe possible antiestrogenic effect of clomiphene citrate on endometrial growth was assessed by serial transabdominal ultrasonographic measurements in 46 women with unexplained infertility. A significantly higher (p < 0.05) rate of endometrial growth was observed in the 8 women who conceived compared with the 38 women who failed to conceive. A thicker endometrium (4.6 ± 0.3 mm) was observed from the third day before ovulation as well as a higher average growth rate in the three days prior to ovulation (0.7 ± 0.1 mm/day) in the group that achieved pregnancy compared to a lower endometrium (2.1 ± 0.2 mm) from the third day before ovulation and a slower growth rate in the three days prior to ovulation (0.2 ± 0.0 mm/day) in the group that did not achieve pregnancy (p < 0.05). These data suggest that clomiphene citrate may exert an antiestrogenic effect on the endometrium, and thus interfere with implantation. © 1994 John Wiley & Sons, Inc.
Prediction of neonatal crown–heel length in normal singletons, twins, and triplets using individualized growth assessment
Authors: Milner Lizabeth L. , Deter Russell L. , Hill Reba M. , Hegemier Suzanne , Hata Toshiyuki , Stefos Theodor 
Published: February 2007

AbstractIn groups of normally growing singletons (20), twins (20), and triplets (13), predicted femur diaphysis length (FDL) values at birth were obtained using Rossavik growth models specified from second‐trimester ultrasound studies of fetal growth. Six previously published functions were utilized to obtain predicted crown–heel length (CHL) values from predicted FDL values. These values were compared to the actual CHL values and the percent differences calculated. Based on their systematic (mean percent difference) and random (standard deviation of percent difference) prediction errors, the functions of Vintzileos (singletons), Hadlock (twins), and Brown (triplets) were found to give optimal results (no systematic error; random error: ±6%). Using predicted CHL values obtained with these optimal functions, growth potential realization index values for CHL (GPRICHL) were determined for singletons, twins, and triplets. In all three groups, the mean GPRICHL value was 100% with a range of ∼95% to 105%. These results indicate that the CHL can be predicted from second‐trimester growth patterns and evaluated using individualized growth assessment methods. © 1994 John Wiley & Sons, Inc.
Comparison of transthoracic and transesophageal echocardiography in the diagnosis of intracardiac tumors in adults
Authors: Shyu Kou‐Gi , Chen Jin‐Jer , Cheng Jun‐Jack , Hwang Juey‐Jen , Kuan Peiliang , Lien Wen‐Pin 
Published: February 2007

AbstractTo compare transthoracic and transesophageal echocardiography in the diagnosis of intracardiac tumors, 17 patients (8 men and 9 women, aged 19 years to 67 years) whose intracardiac tumors were detected by echocardiography were studied in a 4‐year period. Of these, 14 patients underwent cardiac surgery and 13 were proved to have tumors. There were 4 false‐positive and 2 false‐negative diagnoses by transthoracic echocardiography, but only one false‐positive and no false‐negative diagnosis by transesophageal echocardiography. The stalk of a myxoma was detected clearly in 5 of 11 patients by transthoracic echocardiography, whereas in 10 of 11 it was detected by transesophageal echocardiography. The detailed morphologic characteristics of the tumor, such as contour of the tumor, and the presence of cysts and calcification in the tumor, were seen more clearly with transesophageal echocardiography than with transthoracic echocardiography. © 1994 John Wiley & Sons, Inc.
Diagnosis of interstitial pregnancy with sonography
Authors: Chen Gin‐Den , Lin Min‐Te , Lee Maw‐Sheng 
Published: February 2007

AbstractInterstitial pregnancy is a rare and extremely dangerous form of ectopic pregnancy. Preoperative diagnosis of this condition prior to rupture is difficult, and early detection is essential to avoid a fatal outcome. Six cases in our series were diagnosed as interstitial pregnancy. Their clinical features were missed period, positive pregnancy test, and sudden onset of lower abdominal pain with or without vaginal spotting. The sonographic images showed an endometrial echo in uterine cavity, eccentric sac, protruding mass over the cornual area, and/or the presence of free fluid in the cul‐de‐sac. Five of 6 patients had sacs found in the cornual area or a protruding cornual mass. We termed the sonographic findings of interstitial pregnancy as “pregnancy in cornus.” High resolution transvaginal sonography permits determination of the exact location of the gestational sac and increases the diagnosis rate of interstitial pregnancy. © 1994 John Wiley & Sons, Inc.
Renal blood flow velocity in neonates with and without umbilical artery catheters
Authors: Glickstein Julie S. , Rutkowski Monika , Schacht Robert , Friedman Deborah 
Published: February 2007

AbstractWe performed an observational prospective cohort study on the applicability of two‐dimensional echocardiography with pulsed Doppler technique as a noninvasive modality to serially evaluate renal blood velocities in premature neonates with and without umbilical artery catheters. We also sought to determine the incidence of umbilical artery catheter‐related thrombus formation in our neonatal intensive‐care unit. We established normative values for renal artery blood flow velocities in premature neonates and postulate that this echo‐Doppler technique is valid and can be used to evaluate renal developmental physiology in the neonatal population. In addition, we observed that even in the absence of clinical sequelae due to thrombus formation, the presence of a thrombus in the aorta caused abnormalities in renal hemody‐namics. © 1994 John Wiley & Sons, Inc.
Hypertensive intra‐arterial chemotherapy for endometrial carcinoma assessed by transvaginal doppler ultrasound and magnetic resonance imaging
Authors: Hata Kohkichi , Hata Toshiyuki , Fujiwaki Ritsuto , Manabe Atsushi , Kitao Manabu 
Published: February 2007

AbstractWe examined the effectiveness of hypertensive intra‐arterial chemotherapy for endometrial carcinoma using transvaginal Doppler ultrasound and magnetic resonance imaging. Angiotensin II, 100 mg cisplatin, and 40 mg doxorubicin were prescribed for 8 patients with endometrial carcinoma (3 stage la; 3 stage Ib; 2 stage II). The resistance index (RI) was obtained for intratumoral blood flow velocity waveforms by transvaginal Doppler ultrasound and changes in RI (RI: differences before and after chemotherapy) were calculated. The tumor volume (TV) was also evaluated, based on the T2‐weighted image of magnetic resonance imaging (MRI). The decrease in tumor size [DR‐T: (TV before chemotherapy – TV after chemotherapy) / TV before chemotherapy × 100] was determined. RI measurements did not correlate with TV, either before or after chemotherapy. The ΔRI varied from 0.007 to 0.615 (mean: 0.207) and DR – T varied from 20.1% to 65.0% (mean: 45.5%). The correlation between ΔRI and DR – T [DR – T = 23.5 + 167.2 (ΔRI) – 165.6 (ΔRI)2; R2 = 0.772, p < 0.05] was significant. Therefore, we confirmed the effectiveness of hypertensive intra‐arterial chemotherapy for endometrial carcinoma using both transvaginal Doppler ultrasound and MRI. © 1995 John Wiley & Sons, Inc.
Increased uterine and ovarian vascular resistance following filshie clip sterilization: Preliminary findings obtained with color Doppler ultrasonography
Authors: Sumiala Susanna , Pirhonen Jouko , Tuominen Juhani , Mäenpää Juhani 
Published: February 2007

AbstractThe effect of Filshie clip sterilization on uterine and ovarian circulation was studied with color Doppler ultrasonography in 16 women before and twice after the operation. As a whole, the vascular resistance was slightly raised in the largest uterine artery and in the fundal parts of the uterine arteries; likewise in the ovarian arteries 2 days after sterilization. The resistance in the uterine arteries approached the pre‐sterilization level at 3 months after the operation, although these changes were not statistically significant. Two women had pelvic pain in the first days after the procedure, and they were compared with the symptom‐free patients. Two days after sterilization, the patients with pain had significantly higher vascular resistance in all parts of the uterine arteries as compared to the symptom‐free patients. After 3 months the difference had decreased in the largest uterine arteries and in the middle parts of the uterine arteries, but in the fundal parts the resistance was still higher than before sterilization. Vascular resistance in the ovarian arteries was increased in both groups, although the elevation was more pronounced in patients with pain. These preliminary findings imply that sterilization may cause an increase in the local vascular resistance, which is measurable by color Doppler sonography. © 1995 John Wiley & Sons, Inc.
Comparison of the performance of different reversed‐phase columns for liquid chromatography separation of 11 pollutant phenols
Authors: Cledera‐Castro M. , Santos‐Montes A. , Izquierdo‐Hornillos R. , Gonzalo‐Lumbreras R. 
Published: February 2007

AbstractA systematic optimization of the HPLC separation of a mixture containing 11 pollutant phenols (PPs) using a Hypersil ODS (250 mm×4.6 mm, 5 μm) column and UV‐DAD detection has been carried out. The binary mobile phases used were obtained by mixing 50 mM phosphate (pH = 3.0) and methanol, ACN, or THF as organic modifiers. After selecting ACN as an organic modifier, the effects of pH and temperature on PPs separation were studied. A mobile phase of 50 mM acetate (pH = 5.0)–ACN (60 : 40 v/v) at 50°C allowed the separation of 11 phenols but not to baseline in 17 min. To improve the performance of this separation, the following RP columns were tested: Luna C18 (2), Purospher C18, Synergi C12, Synergi Fusion C18, Gemini C18, Luna Cyano, Lichrospher C8, and Envirosep‐PP (polymeric). In all the cases, the performance (analysis time, retention, selectivity, resolution, asymmetry factors, and efficiency) was evaluated. A further reoptimization of the mobile phase was carried out for all the columns by studying the ACN content and pH, with the aim of improving the above‐mentioned separations and selecting the most suitable one for PPs analysis.