摘要:

AbstractUsing arteriography as the gold standard, Color flow Doppler ultrasonography was evaluated with regard to its ability to detect peripheral vascular occlusive disease and hemodynamically significant stenosis in patients having peripheral arteriography. One hundred legs in 51 patients were compared at seven arterial segments for disease. Color flow Doppler ultrasonography correctly detected 84 occluded segments, and demonstrated a sensitivity and specificity for patency vs occlusive disease of 95% and 99%, respectively. One hundred and thirty hemodynamically significant lesions (occlusions plus significant stenosis) were correctly identified with color flow Doppler ultrasonography, with a sensitivity and specificity of 92% and 97%, respectively.Color flow Doppler ultrasonography is a safe, inexpensive, and noninvasive method of accurately documenting significant peripheral arterial disease and offers a new first‐line investigation for patients presenting with symptoms of peripheral arterial insufficienc

ISSN:0091-2751    

DOI:10.1002/jcu.1870200602

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractReal‐time ultrasonography can detect the movement of viscera immediately deep to the abdominal wall. This motion of abdominal contents is called viscera slide, and is produced by the force of respiratory motion (spontaneous viscera slide) or by manual ballottement of the abdomen (induced viscera slide). Viscera slide was observed in 18 “normal” subjects (no history of previous abdominal surgery or peritonitis) and in 24 subjects at “risk” for abdominal wall adhesions because of previous abdominal operations or past history of peritonitis. In 14 of the 24 “risk” group subjects, spontaneous and induced viscera slide was restricted to excursions of less than 1 cm (58.3%). Operations were performed on 18 patients, which confirmed the fact that restriction of ultrasonically detected viscera slide identified abdominal wall adhesions in all cases, but no adhesions were found in patients with normal viscera slide. This ultrasonic finding of restricted viscera slide may be useful in the preoperative discovery and localization of abdominal wall adhesions prior to laparoscopy

ISSN:0091-2751    

DOI:10.1002/jcu.1870200603

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractA statistical procedure for deriving growth standards for anatomic measurements and their growth rates from longitudinal studies of fetal growth was evaluated using Rossavik growth models for the biparietal diameter (BPD), head circumference (HC), abdominal circumference (AC), and femur diaphysis length (FDL) determined in a previous study of normal fetal growth. For each anatomic parameter, the coefficientscandsof the model was used to define a set of growth curves that constituted the boundary growth curves of a region containing 95% of the growth curves of this data set. The set of boundary growth curves was used to specify the mean, lower limit, and upper limit values for the anatomic parameter and its growth rate at weekly intervals between 14 and 38 weeks, menstrual age.Comparison of these values to those determined from cross‐sectional studies of fetal growth gave differences of −1.9% to 4.8% (SD: ±0.9 to ±2.6) for mean vs. predicted value of the anatomic measurements. For the lower limit, similar values were 0.4% to 13.8% (SD: ± 1.7 to ±8.8); for the upper limit the values were 8.3% to 18.0% (SD: ±1.5 to ±7.0). Comparisons of HC growth rates determined using polynomial and Rossavik growth models gave values of −3.4% (SD: ±4.4) for mean vs. predicted value, −12.6% (SD: ±10.6) for the lower limit and 5.2% (SD: ±9.3) for the upper limit. The degree of agreement was similar for AC growth rates. These results indicate that reasonable growth standards for anatomic measurements and their growth rates can be determined from longitudinal studies of as few as20normal fetuses, although better estimates of normal variability could be obtained with

ISSN:0091-2751    

DOI:10.1002/jcu.1870200604

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

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 ultrasonogra

ISSN:0091-2751    

DOI:10.1002/jcu.1870200605

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

摘要:

AbstractThe widespread use of modern diagnostic imaging techniques, especially computed tomography and sonography, has led to the detection of an increasing number of serendipitous renal neoplasms, with no signs nor symptoms related to the neoplastic renal disease. In the last 4 years, 54 consecutive patients (20 females and 34 males) with renal cell carcinoma were reviewed. In 26 patients (48.15 per cent) the diagnosis was made as an incidental finding by an abdominal ultrasound examination. Clear signs and symptoms related to the neoplastic disease were present in 28 cases (51.85 per cent). The pathologic type of each neoplasm was categorized, and each carcinoma was staged. In the patients not surgically treated, the stage was determined on the basis of the diagnostic imaging reports. The results of this study suggest that the incidentally detected tumors are of a significantly lower stage than the symptomatic tumors (Wilcoxon rank sum test:P<0.0073 and X2test:P<0.013). Early detection of renal tumors may improve the prognosis and the overall survival of patients with renal cell carcinoma and allow one to plan radical or partial nephrectomy, since local extension has a considerable impact on the operative strategy. Our experience emphasizes the role of ultrasound in the increased early detection of renal cell carcinoma.

ISSN:0091-2751    

DOI:10.1002/jcu.1870200606

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870200607

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870200608

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870200609

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870200610

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870200611

出版商:Wiley Subscription Services, Inc., A Wiley Company    

年代:1992

数据来源: WILEY