bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sonographic and CT appearance of krukenberg tumors
Authors: Athey Patricia A. , Butters Harry E. 
Published: February 2007

AbstractThe sonographic findings in two cases of Krukenberg tumor of the ovary secondary to carcinoma of the colon are presented. Three other single case reports of sonography in this entity have been recorded in the literature. Clinical data and sonographic findings in these five cases are analyzed. Pathologically and sonographically these tumors, when of moderate to large size, appear as solid masses containing variable amounts of fluid and can mimic the appearance of cystadenocarcinoma of the ovary. The CT findings in one case are included and correlate well with the sonographic appearance. Indexing Words: Ovary, metastasis · Ovary, Krukenberg tumor · Krukenberg tumor, ultrasound.
Sonography of Abdominal Posttransplant Lymphoma
Authors: Frick Mathis P. , Salomonowitz Erich , Feinberg Samuel B. 
Published: February 2007

AbstractFive patients developed abdominal lymphoma an average of 89 months after successful renal transplantation. Sonographically, the lymphomas presented as bulky intraperitoneal masses or focal deposits in the liver. These lesions exhibited good sound transmission and intrinsic pattern ranging from sparse, soft echoes to coarse trabeculations. Prompt diagnosis of this serious late complication of renal transplantation is crucial. Indexing Words: Posttransplant lymphoma Abdominal lymphoma · Renal transplantation · Sonography.
Mathematical Modeling of Fetal Growth: II. Head Cube (A), Abdominal Cube (B) and Their Ratio (A/B)
Authors: Rossavik Ivar K. , Deter Russell L. 
Published: February 2007

AbstractAbstract: Growth of the fetal head and abdomen have been monitored by measurement of the head cube (A), the abdominal cube (B) and A/B, from 12 to 41 weeks menstrual age. Growth curves for these parameters have been determined using a specially developed growth curve model [P = c(t)k+S(t)]. R2 values of 98.0%, 96.6%, and 56.2% were obtained for A, B, and A/B, respectively. Similar results were obtained when this model was used with HC and AC data from a previous study. Variability analysis indicated a progressive increase in variability with menstrual age for both A and B while the variability of A/B decreased. The variability in the 12‐ to 17‐week interval was significantly greater for all three parameters and the A deviation distribution was asymmetric (shifted toward negative values) after 36 weeks. Variability data were used with the growth curve models to determine standard curves for A, B and A/B. Indexing Words: Fetal growth · Head cube · Abdominal cube · Growth equation.
Right ventricular volume determination in isolated human hearts
Authors: Erbel R. , Richter H. A. , Krebs W. , Schweizer P. , Massberg I. , Zotz R. , Meyer J. , Effert S. 
Published: February 2007

AbstractFor right ventricular volume determination a new method was developed that took into account right ventricular imaging by apical two‐dimensional echocardiography in the four‐ and two‐chamber views. Right ventricular volume was calculated by subtraction of the partial volume of the left ventricle and interventricular septum from total heart volume of the right and left ventricles including the interventricular septum. Accuracy of the subtraction method was evaluated in isolated human hearts by two‐dimensional echocardiography and radiography. Regression analysis indicated that for both the echocardiographic and radiologic procedures, the subtraction method gave the best correlation with the right ventricular filling volume. The correlation coefficients obtained using the echocardiographic procedure were 0.964, 0.848, and 0.851 for the subtraction method, pyramid method, and Simpson's rule method, respectively. For the radiographic procedure, these values were 0.946, 0.860, and 0.872. Percentage difference calculations indicated that the subtraction method systematically underestimated (−7.4%) the filling volume in the echocardiographic procedure, but this was not seen with the radiologic procedures. The random error associated with the subtraction method was only half (10.5%, 13.9%) of that seen with the other two methods in both the echocardiographic and radiological procedures. These results indicate that right ventricular volume determination by the subtraction method seems to be suitable for apical two‐dimensional echocardiography and is more accurate than the pyramid method and Simpson's rule method.
Ultrasonographic detection of the patellar plica in the knee
Authors: Derks Willem H. J. , de Hooge Pieter , van Linge Bert 
Published: February 2007

AbstractIn 39 knees of 38 patients, an ultrasonographic investigation of the patellofemoral space was performed to detect a plica synovialis. By arthroscopic control, we found a sensitivity for the ultrasonographic method of 92% and a specificity of 73%. The method, materials, and results are discussed in this paper.
Uncommon causes of scrotal and inguinal swelling in children: Sonographic appearance
Authors: Han Bokyung K. 
Published: February 2007

AbstractSonography has proven to be a useful diagnostic tool in the evaluation of scrotal abnormalities. Three uncommon, interesting abnormalities—epididymoochitis as the presenting manifestation of Hemophilus influenzae sepsis, torsion of undescended testis, and abdominoscrotal hydrocele—are presented. All had swelling of both the scrotum and the inguinal area. Sonography played a significant role in the evaluation and management of these patients.
Indications for routine cranial ultrasound scanning in the nursery
Authors: Sims Maureen E. , Halterman George , Jasani Naveen , Vachon Linda , Wu Paul Y. K. 
Published: February 2007

AbstractCranial ultrasonography provides important diagnostic information in neonates. The clinical indications for routine scanning in newborn infants, however, are not established. The purpose of this study is to determine the incidence of cranial pathology detectable by ultrasound in certain clinical states in the neonate. We reviewed the scans and clinical states of 1,031 neonates born between April 1981 and February 1985. We found term infants with dysmorphic features to have the highest incidence of neuropathology (46%), followed by term infants born with macrocephaly (33%), preterm infants (26%), term infants with seizures (26%), and term infants with 1‐ and 5‐min Apgar scores <7 (13%). We found a lower incidence (<5%) of abnormal CNS findings in the nonasphyxiated term infants with split sutures, cephalohematoma, abnormal neurologic examination, and idiopathic jitteriness. Based on our findings we have concluded that it is important to scan routinely all premature infants, term infants with dysmorphic features, macrocephaly, or seizure disorder, and infants with 1‐ and 5‐min Apgar scores <7; routine scanning of term infants with split sutures, cephalohematoma, abnormal neurological examination, or idiopathic jitteriness is not indicated.
Ultrasonography of mediastinal teratorma
Authors: Ikezoe Junpei , Morimoto Shizuo , Arisawa Jun , Kuriyama Keiko , Akira Masanori , Kozuka Takahiro , Nakahara Kazuya , Ohno Kiyoshi , Sone Shusuke , Higashihara Tokuro 
Published: February 2007

AbstractWe have studied real‐time sonograms of 11 surgically proven benign mediastinal teratomas. Eight cystic teratomas were sonographically visualized as various kinds of masses: four complex, two solid, and two cystic. The echo patterns of cystic teratomas were determined by the serous or nonserous nature of the cysts. In the presence of serous fluid, the tumor was visualized as a cystic mass. If, on the other hand, the cyst of the tumor was nonserous or was sebaceous, it appeared as a solid or complex tumor. The remaining three solid teratomas, which had some small cysts, appeared as complex tumors.
Computer analysis of echographic textures in hashimoto disease of the thyroid
Authors: Mailloux Guy , Bertrand Michel , Stampfler Robert , Ethier Serge 
Published: February 2007

AbstractUltrasound B‐scan images of the thyroid obtained from 10 patients with Hashimoto disease were digitized and processed by a computer method of image analysis that segments complex B‐scan images into regions of homogeneous texture. The method was first applied to B‐scan images of the normal thyroid and it consistently classified the normal tissue into a unique region. When applied to Hashimoto disease B‐scan images, the same method segmented the thyroid into two regions. Detailed analysis of these regions revealed that their gray‐level histograms were very different from that of the normal thyroid in eight cases. In two cases the histogram of one of the regions was similar to that of the previous eight cases, whereas the histogram and the tissue of the other region were similar to those of the normal tissue. This paper shows how these results can be interpreted according to the natural history of the Hashimoto disease.
Ultrasonic evaluation of pediatric superficial masses
Authors: Yamaguchi Muneyuki , Takeuchi Setsuo , Matsuo Sin‐Ichiro 
Published: February 2007

AbstractMechanical sector scanning using a balloon and electronic scanning using transrectal probes were applied in the diagnosis of pediatric superficial masses. In 135 cases of pediatric superficial masses definitely diagnosed by surgical findings and histopathologic examinations, a comparative investigation was performed between the surgical and histopathologic findings and ultrasonographic findings. Among these 135 cases, 117 of the masses were benign, and 18 were malignant. By means of these scans, it was possible to diagnose correctly not only the size and shape of the mass but also the internal characteristics. However, it was difficult to determine if the mass was benign or malignant.
Differentiation of mononucleosis from hepatitis by sonographic measurement of spleen size
Authors: Ishibashi Hiromi , Okumura Yuzo , Higuchi Noriaki , Morioka Eiji , Kimura Harumichi , Shirahama Masafumi , Kurokawa Satoshi , Miyanaga Osamu 
Published: February 2007

AbstractSpleen size in patients with infectious mononucleosis (IM) was measured using ultrasound, and the findings were compared with data obtained in cases of acute viral hepatitis (AVH). The size was expressed as the spleen index (SI) or the product of the longitudinal and transverse diameters, expressed in cm2, of the maximum cross‐sectional area of the spleen. A normal value obtained from 28 healthy individuals was 15 ± 7 cm2. The SI (mean ± SD) of patients with AVH and IM were 38 ± 7 cm2 and 88 ± 26 cm2, respectively. When the SIs were divided into five groups–grade 0 (0–25), grade I (26–50), grade II 51–751, grade III (76–100), and grade IV (100+), 83.3% of the patients with AVH were graded as Grade 0 or I, whereas 88.9% patients with IM belonged to higher grades. Splenomegaly with a SI value over 75, grade III or IV, strongly suggests IM when IM and AVH are being considered in the absence of other potential causes of splenomegaly. Because the clinical features of IM sometimes resemble those of AVH, it is often difficult to differentiate the two entities. The measurement of spleen size could be a significant supplemental aid in the diagnosis of IM in primary medicine, before clinical data can be obtained.
Fetal head shape in spina bifida in the second trimester
Authors: Furness Margaret Elyena , Barbary Jane Elizabeth , Verco Peter Willis 
Published: February 2007

AbstractUnequivocal narrowing of the anterior cranium, with an apparent constriction in the approximate region of the coronal sutures, in the absence of oligohydramnios is presented as a warning sign of spina bifida in the second trimester fetus. It makes detailed assessment of the spine, cerebellum, and other ultrasonographic features imperative and may justify amniocentesis.
Endoscopic ultrasonography of esophageal tumors and compressions
Authors: Silva Suzette A. , Kouzu Teruo , Ogino Yukinobu , Sato Hiroshi 
Published: February 2007

AbstractThe diagnostic value of endoscopic ultrasonography to determine the nature of submucosal tumors and external compressions of the esophagus was assessed in 14 patients using endoscopic linear array ultrasonography. For submucosal tumors this new approach not only provided an accurate diagnosis but also enabled us to determine the layer of origin, the direction of growth, and the consistency of the tumor—information not obtainable through other diagnostic methods. The structure from which the external compression comes could also be detected through this new technique. Endoscopic ultrasonography is a very helpful diagnostic procedure in determining the nature of these “tumorlike” lesions.
Replaced or right accessory hepatic artery: Can ultrasound replace angiography?
Authors: Bret Patrice M. , Reinhold Caroline , Herba Milton , Atri Mostafa , Challender Jacqueline , Edde Donald , Casola Giovanna , Kintzen George , Withers Cynthia , Remy Huguette 
Published: February 2007

AbstractThe accuracy of ultrasonography in detecting the right hepatic artery was prospectively assessed in 128 patients undergoing abdominal angiography. Twenty‐five (19%) of the ultrasound studies were technically inadequate mainly because of gas superimposition. Of the remaining 103 cases, 14 had a replaced hepatic artery, which was diagnosed in 10 cases with ultrasound (sensitivity 71%). Eighty‐nine did not have a replaced hepatic artery and the ultrasound assessment was falsely positive in four of them (specificity 96%). Two of the four false negative results could be explained by a stenosis of the superior mesenteric artery in front of the origin of the replaced hepatic artery. Two of the four false positive results could be explained by the presence of a stenosis of the celiac trunk with hypertrophy of the pancreaticoduodenal arteries, one of them being misdiagnosed as a replaced hepatic artery.
Effects of aging on cardiac blood flow velocities
Authors: van Dam Ina , Wijn Pieter , de Boo Theo , Hopman Jeroen , van Oort Anton , Fast Jules , Heringa Anco , van der Werf Tjeerd , Daniëls Otto 
Published: February 2007

AbstractThe effects of aging on cardiac blood flow velocities are important as a description of the natural history of the aging process and as a reference for evaluation of the aging cardiovascular system. We therefore studied these effects in 215 healthy volunteers, 120 males and 95 females, between 1 and 65 years old. Pulsed Doppler signals were recorded proximal and distal to the mitral (M) and tricuspid (T) valves, in the left ventricular outflow tract (LVOT), in the ascending aorta (AAO), in the right ventricular outflow tract (RVOT), and in the pulmonary artery (PA). Systolic (S) flow velocity patterns consist mainly of one peak. Diastolic blood flow velocity is characterized by two peaks: one due to early filling (E) of the ventricle and a second as a result of atrial contraction (A). All peaks are characterized by the maximum of the median velocity curve (Vmax). With age increasing from 1 to 65 years, VmaxS decreases in the AAO (40%)and PA (10%), VmaxE decreases on both sides of the M valve (proximal—50%; distal—30%), and the T valve (proximal—20%; distal—30%). However, with increasing age VmaxS increases in the LVOT (25%), and VmaxA increases on both sides of the M valve (proximal—20%; distal—50%) and proximal to the T valve (30%). VmaxS in the RVOT and VmaxA distal to the T valve did not show a relation with age. These observations demonstrate that in a normal population Vmax in the heart and great vessels is age dependent at most sites. However, a positive or negative relationship can be found, depending on the measuring site and heart cycle phase. This behavior of Vmax must be taken into account in interpreting cardiac Doppler data for diagnostic purposes.
Liver biopsy embolization track: Ultrasonic appearance
Authors: Carvalho P , Allison D. J 
Published: February 2007

AbstractIn patients with a bleeding disorder or coagulopathy who require liver biopsy, conventional liver biopsy has a high risk of uncontrollable hemorrhage. Biopsy in such cases has been performed via the transjugular approach that, although safe, is technically challenging, requires cardiac monitoring and may have a small specimen volume.An alternative, safe, and more direct method of obtaining histological samples is by Trucut liver biopsy followed by embolization of the biopsy track. This may leave behind a track that on sonographic examination may simulate other pathology.
An unusual anomalous intrahepatic connection between the left portal vein and internal mammary veins
Authors: Shawker Thomas H , Chang Richard , Garra Brian , Edelstein R. A , Barton Norman W , Filling‐Katz M. R 
Published: February 2007

AbstractPersistent embryonic portal vessels such as the umbilical vein or ductus venosus are occasionally encountered in the adult on ultrasound examination of the liver. These vessels must be identified and distinguished from the normal intrahepatic portal and hepatic veins. Recently, we have found another vein that, like the ductus venosus and persistent umbilical vein, is also a large intrahepatic portal vessel that is not a normal component of the hepatic vasculature. This anomalous vein originated from the left portal vein and traversed the liver parenchyma without branching to reach the anterior‐superior liver margin, serving as an intrahepatic portal‐systemic shunt by directly connecting the left portal vein and the internal mammary veins.
Diagnosis of acute ulcerative colitis and colonic Crohn's disease by colonic sonography
Authors: Limberg Bernd 
Published: February 2007

AbstractBy instilling water into the large intestine, sonographic visualization of the whole length of the colon from the rectosigmoid to the cecum can be achieved. Furthermore, using this method, it is possible to evaluate the lumen, the intestinal wall, and the surrounding connective tissue in detail. In our study, severe, active colonic Crohn's disease and ulcerative colitis could be detected by diagnostic sonography of the colon with a sensitivity of 91% and 89%, respectively. Pathological changes were subsequently confirmed by colonoscopy. Differing echo patterns made differentiation of these two diseases possible. Our results thus show that colonic sonography is a diagnostic procedure that promises to greatly facilitate the evaluation and differentiation of inflammatory large bowel diseases.
Ultrasound volumetry in hematometrocolpos
Authors: Ali Ghorashi M. , Kordorff R. , Franke D. 
Published: February 2007

AbstractSonographic measurements of the volume of blood collecting in hematometrocolpos has been carried out in 6 cases of imperforate hymen. Sonometry gave estimates of the amount of retained blood, which were 4% to 28% more than that actually evacuated. The vaginal collection was 5 times or more than the uterine collection. Ultrasound gives characteristic diagnostic features, and the quantitative capabilities may provide information on volume and on the natural history of this condition.
Growth of fetuses of diabetic mothers
Authors: Todros Tullia , Meriggi Ernesto , Catella Giovanna , Sanfelici Carlo , Gagliardi Leone , Resconi Germano 
Published: February 2007

AbstractLongitudinal ultrasonographic examinations, with measurements of fetal biparietal diameter and abdominal circumference, were performed in 85 diabetic pregnant women submitted to different treatment protocols. Curves of fetal growth parameters were obtained for each group of patients and for a control group of normal fetuses, applying the function y = k(MA)2 · e−a(MA) to the ultrasonographic data.With the use of this function it was possible to demonstrate that there are no significant differences in the pattern of fetal growth when a strict metabolic control is obtained in diabetic pregnant women.
Sonographic measurement of the pancreas in children
Authors: Ueda Daisuke 
Published: February 2007

AbstractThe real‐time ultrasound images of the head of the pancreas in 93 children, and those of the body of the pancreas in 143 children, were analyzed to determine the normal size. Ultrasound images were obtained by sagittal scanning at the epigastrium and the long axis and the short axis of the oval cross section were measured. The pancreatic dimensions were correlated with height, weight, body surface area, and age. Correlation with height was as good as or better than that obtained with the other physical parameters. However, pancreatic measurements in children vary within each height group, especially in the short axis diameter. Therefore, ultrasound imaging should be utilized in conjunction with clinical and biochemical findings for more precise evaluation of the pancreas.
Ultrasonographic detection of plastic materials in various organs of the human body
Authors: Pery Menucha , Rosenberger Alexander , Kaftori Joseph K. 
Published: February 2007

AbstractThe ultrasonographic appearance of different plastic catheters, tubes, and prostheses used in medical practice were tested in vivo and in vitro. According to the direction of the sound beam, the different plastic catheters and tubes appeared as parallel echogenic lines if scanned longitudinally, or as echogenic dots if scanned transversely. The exact position of the tip of the catheter and its relationship to neighboring organs can be established by ultrasonography. Repositioning of tubes, if necessary, can be done under ultrasonographic guidance. The flexibility and mobility of modern ultrasound scanners allows one to examine the sick patient with minimal disturbance, and to evaluate the location and effect of the various plastic catheters and tubes inserted into the body for medical reasons.
Noncystic “increased” periventricular echogenicity and other mild cranial sonographic abnormalities: Predictors of outcome in low birth weight infants
Authors: Goldstein Ruth B. , Filly Roy A. , Hecht Stephen , Davis Suzanne 
Published: February 2007

AbstractThe sonograms of 71 low birth weight infants were retrospectively reviewed and compared with results of neuromotor examinations at 24 months of age to determine whether mild abnormalities commonly detected on cranial sonograms (including milder grades of hemorrhage, ventricular dilation, and noncystic increases in periventricular echogenicity) were correlated with future neurologic handicaps. Of the 71 infants studied, increased periventricular echoes were noted in 20 (28%), Grade 1 or 2 intracranial hemorrhage in 31 (43%), and mild–moderate ventriculomegaly in 28 (39%). Neuromotor handicaps were detected in 15 (21%). No significant correlation was found between the above sonographic abnormalities and the incidence of future neuromotor handicaps. When those neonates with asymmetric mild–moderate ventriculomegaly were separately analyzed, this group was found to have more neuromotor handicaps (p <0.05) than those with normal ventricular size, and this finding warrants future study. Importantly, early cranial sonograms were completely normal in 12% of those infants with neuromotor handicaps. We conclude that the presence of mild cranial sonographic abnormalities (including mildly increased periventricular echogenicity) in these infants is not well correlated with neuromotor handicaps detected at 24 months of age.
Intravascular thrombosis: Definitive detection by quantitative tissue characterization in vitro
Authors: Barzilai Benico , Eisen Howard E. 
Published: February 2007

AbstractTo improve the sensitivity and reliability of the ultraasonic detection of intravascular thrombosis, we employed quantitative ultrasonic techniques for the analysis of thrombi induced in vitro. Citrated human blood or platelet‐rich plasma was added to sections of canine thoracic aorta mounted vertically in a saline bath. CaCl2 and thrombin were then added to induce thrombosis. Ultrasonic integrated backscatter measured sequentially with a 10‐MHz focused transducer exhibited more than a 10 dB increase in integrated backscatter when either whole blood or plateletrich plasma was clotted (−61.7 dB to −47.4 dB whole blood; < −70 dB to −52.8 dB platelet‐rich plasma). Thus, large significant changes in integrated backscatter measured from structures within the arterial lumen were readily detectable and indicative of thrombosis in situ.