ISSN:0091-2751    

DOI:10.1002/jcu.1870100702

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

年代:1982

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870100722

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

年代:1982

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870100719

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

年代:1982

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870100720

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

年代:1982

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870100721

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

年代:1982

数据来源: WILEY

摘要:

AbstractA simple and inexpensive procedure to obtain M‐mode tracings at any level or direction from two‐dimensional echocardiograms is described. The method permits a complete M‐mode visualization of (1) segmental motion of the cardiac walls, (2) structures difficult to reach with conventional procedures, and (3) two or more cardiac valves simultane

ISSN:0091-2751    

DOI:10.1002/jcu.1870100703

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

年代:1982

数据来源: WILEY

摘要:

AbstractOver an 18‐mo period, 93 prostate examinations were performed by a suprapubic transabdominal approach. By applying ultrasonographic tissue textural analysis, we were able to identify 16 out of 19 carcinomas. Most of these analyses showed ill‐defined focal abnormalities located either in the posterior or the posterior‐lateral portion of the gland. Ten of the analyses demonstrated increased echogenicity, while six demonstrated decreased echogenicity. Irregularity of the capsule was an unreliable sign in determining capsular invasion. The degree of extension appears to be better evaluated by computed tomography (CT). In conclusion, transabdominal ultrasound holds promise in the detection of prostatic carcinoma, while staging should be done

ISSN:0091-2751    

DOI:10.1002/jcu.1870100704

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

年代:1982

数据来源: WILEY

摘要:

AbstractThe sonographic appearance of 130 breast carcinomas imaged by a dedicated breast scanning system is reviewed. Five separate categories are identified and examples of each category with corresponding xeromammograms are presented.

ISSN:0091-2751    

DOI:10.1002/jcu.1870100705

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

年代:1982

数据来源: WILEY

摘要:

AbstractSystematic evaluation of blood clot echogenicity was performed with five different transducer frequencies in two experiments. In the first experiment, blood clots were insonified at five different time periods; from immediately after clotting up to 96 hours after clotting. In the second experiment, blood clots of four different hematocrits (48 to 20%) and clots of hemolysed blood were insonified. The clots, with normal hematocrits, were highly echogenic when imaged with 5, 7.5 and 10‐MHz transducers immediately and 24 hours after clotting. The echo intensity decreased over the following days until it almost disappeared at 96 hours after clotting. Clot echogenicity was not observed with 2.25 and 3.5‐MHz transducers, except at the interface between retracted clot and serum. Clot echogenicity decreased in proportion with the hematocrit. Hemolysed blood clots were not echogenic. It is concluded from this study that fresh blood clots are echogenic soon after thrombosis with high resolution imaging and this echogenicity diminishes with time. Ultimately, with organization and lamination, echogenicity will re

ISSN:0091-2751    

DOI:10.1002/jcu.1870100706

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

年代:1982

数据来源: WILEY

摘要:

AbstractA comparison of a prolate ellipsoid method and a parallel planimetric area method for measuring volumes with ultrasound was made using phantom models of water‐filled balloons scanned under set conditions. Correlation with actual volumes was significantly better with the parallel planimetric area method (p<0.02) with 93.3% of parallel planimetric area measurements being within 5% of the actual volume compared with only 33.4% of measurements obtained with the prolate ellipsoid method. For uterine volume measurements, a parallel planimetric area method is the more suitabl

ISSN:0091-2751    

DOI:10.1002/jcu.1870100707

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

年代:1982

数据来源: WILEY