摘要:

AbstractThis review article presents fetal organ measurements obtained with ultrasound. Data derived from measurements of the brain, heart, lung, thymus, liver, spleen, pancreas, stomach, gallbladder, kidney, adrenal glands, intestine, and bladder are summarized, compared and evaluated critically. The selection of optimal parameters, development of valid measurement procedures, and use of mathematical modeling and descriptive statistics are necessary for quantitative studies by ultrasound of fetal organ growth.

ISSN:0091-2751    

DOI:10.1002/jcu.1870200302

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

年代:1992

数据来源: WILEY

摘要:

AbstractThe value of hysterosalpingosonography (HSSG) as a diagnostic tool was evaluated in 76 patients and compared to hysteroscopic, laparoscopic, and/or hysterosalpingographic (HSG) findings. Saline solution and Dextran 60 were used as distension media.Patients were divided in three groups: group A (n = 22), patients submitted for control post‐tubal electrocoagulation. Group B (n = 38), patients with a history of pathological metrorrhagias, and group C (n = 16) infertile women with possible tubal pathology.Comparison between the different diagnostic techniques for the evaluation of the uterine cavity and tubes was carried out. Our results indicated that HSSG had more sensitivity but less specificity than hysteroscopy or HSG in the diagnosis of uterine cavity pathology. Hysteroscopy seems to be the best technique for the diagnosis of endometrial pathology, and HSSG seems to be the most effective in the study of the myometrium. HSSG cannot be considered a reliable and accurate method for the diagnosis of tubal patenc

ISSN:0091-2751    

DOI:10.1002/jcu.1870200303

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

年代:1992

数据来源: WILEY

摘要:

AbstractThe aim of our study was to determine the value of the percutaneous pancreatic pseudocyst evacuation. We assessed the relation between the amylase concentration of the pseudocyst contents and the final outcome of the disease treated by the percutaneous evacuation.Forty‐three patients with a history of acute pancreatitis and pancreatic pseudocysts larger than 5 cm in diameter that persisted beyond 6 weeks were divided into four groups relative to the amylase concentration in the pseudocystic contents and the number of evacuations. The results show a good correlation between low amylase concentration in the liquid pseudocystic contents (less than or equal to 64 WU) and the healing rate after the percutaneous evacuation (p<0.001).The percutaneous evacuation of the pseudocysts failed in patients with increased amylase concentrations in the pseudocyst fluid regardless of the number of evacuations.We conclude that surgical treatment is indicated in patients who have amylase‐rich pseudocyst conte

ISSN:0091-2751    

DOI:10.1002/jcu.1870200304

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

年代:1992

数据来源: WILEY

摘要:

AbstractAccuracy of two systems—conventional (DRF 400, Diasonics) and colorcoded (Angiodynograph, Quantum/Phillips) image‐directed Doppler ultrasonography—was investigated using an in vitro model that generated both monophasic and triphasic pulsatile flow patterns. Estimated and actual blood volume flow rates showed good correlations, but the sampling with a hand‐held transducer led to wide variations in measurement error for the conventional (−69.2% to 50%) and the colorcoded (−79.3% to 265.7%) systems. By performing multiple measurements, one could improve accuracy considering only the maximal values of a series instead of the mean values. Accuracy was impaired by interposed muscular or fatty tissue due to false low time‐average velocity measurements caused by a loss of Doppler signal. Comparison of both systems revealed significant differences between pulsatility index values (p<0.001), blood flow velocities (p<0.001), and blood volume flow rates (p<0.05 for program flow, p<0.001 for manual and automatic flow program of the color

ISSN:0091-2751    

DOI:10.1002/jcu.1870200305

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.1870200306

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.1870200307

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.1870200308

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.1870200309

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.1870200310

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.1870200311

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

年代:1992

数据来源: WILEY