ISSN:0091-2751    

DOI:10.1002/jcu.1870200702

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

年代:1992

数据来源: WILEY

摘要:

AbstractColor Doppler flow imaging was performed in 121 patients with portal hypertension. Portosystemic collateral shunts originating from the left portal veins were seen in 41 of the patients. A single collateral shunt was seen in 27 of these, and multiple collateral shunts were seen in the other 14. Collateral shunts running in the ligamentum teres were seen in 26 of the 41 patients; the veins ran through the liver parenchyma in 25 of these. B‐mode ultrasound imaging could not clearly demonstrate vascular structures in 55% of the collateral shunts. Color Doppler flow imaging provided a clear picture of the course of the portosystemic collateral shunts originating from the left portal vein. © 1992 John Wiley&Sons, I

ISSN:0091-2751    

DOI:10.1002/jcu.1870200703

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

年代:1992

数据来源: WILEY

摘要:

AbstractColor Doppler ultrasonography was used to examine the gallbladder vascular supply in 30 volunteers and in 30 biliary lithotripsy patients pre‐ and 2 hours posttreatment. A preliminary study of 10 cases of acute cholecystitis was also performed. A cystic artery waveform was obtained in 24 of the volunteers, 18 pre‐ and postlithotripsy patients, and in 1 of 10 patients with acute cholecystitis. The mean pulsatility indices obtained were 1.04 in the volunteers, 0.98 pre‐ and 1.02 postlithotripsy (p>0.1). This study shows that the normal gallbladder blood supply can be consistently identified using color Doppler flow imaging and that there is no appreciable difference in the cystic artery pulsatility index following medium‐energy shock‐wave extracorporeal lithotripsy. Preliminary results in acute cholecystitis suggest that flow is decreased below the sensitivity of the color Doppler imaging system used in this inve

ISSN:0091-2751    

DOI:10.1002/jcu.1870200704

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

年代:1992

数据来源: WILEY

摘要:

AbstractThe blood flow of portal vein thrombus was studied by pulsed Doppler ultrasonography in 21 patients with tumor thrombus and 14 with blood clot thrombus. Pulsatile waves were observed in 19 of the 21 with tumor thrombus, with backward continuous waves in 3, and forward/backward continuous waves in 2. In contrast, forward continuous waves were observed in 2 of the 14 with blood clot thrombus. By color imaging, the blood flow could be observed in 9 of 14 with tumor thrombus, but in 1 of 7 with blood clot thrombus. Pulsatile and backward continuous waves were characteristic of tumor thrombus.

ISSN:0091-2751    

DOI:10.1002/jcu.1870200705

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

年代:1992

数据来源: WILEY

摘要:

AbstractWe attempted to examine intracranial pressure (ICP) noninvasively using probes receiving interference echoes of ultrasound from thin layers between the skull and the surface of the cerebrum.The reception of echo through bone flaps less than 5‐mm thick was good. Normal adults (4) and patients (4) were examined by attaching ultrasound probes to the frontotemporal scalp. Recordings were performed during rest, Valsalva maneuver, hyperventilation, and pumping of a shunt‐flushing device. Ultrasound recordings of ICP were compared with those of the scalp using two different time windows. The effect of scalp vessels on the ultrasound recordings of ICP was evaluated. The waves from a pressure transducer and the ultrasound probe were similar. This method was found to useful for ICP recording. © John Wiley&Sons,

ISSN:0091-2751    

DOI:10.1002/jcu.1870200706

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

年代:1992

数据来源: WILEY

摘要:

AbstractThe uterine volume was measured in 30 patients 24 hours before hysterectomy by ultrasonography using the prolate ellipsoid formula. At hysterectomy the volumes of the same uteri were measured again by water displacement. A comparison is made between the two methods of measurements. Although the correlation between the methods is high (r= 0.964) and the mean percentage bias very small (+2.0%), the agreement between the methods for 95% of subjects is between −33.6, 8% and +37.6%. This is a potentially large disagreement relative to the typical size of the uterus, indicating that ultrasonic uterine volume measurement by the prolate ellipsoid method is not adequately precise for clinical management of the individual patient. © 1992 John Wiley&Sons, I

ISSN:0091-2751    

DOI:10.1002/jcu.1870200707

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

年代:1992

数据来源: WILEY

摘要:

AbstractTwenty patients with tuberculous pleural effusions were studied with ultrasonography. In 18 patients, ultrasonography demonstrated regular pleural thickening which was less than 1 cm except in 1 case. In 4 cases there were a few pleural nodules, whereas in 2 cases the pleural surface showed small nodularity. The latter finding may be diagnostic for a tuberculous etiology. Eighteen patients had multiple, delicate, mobile septations in the effusions, and a lattice‐like appearance had formed in 6 cases. Computed tomography was obtained in 7 cases, and pleural thickening was demonstrated in 6 of them. Ultrasonography is a useful imaging modality in the diagnosis of tuberculous pleuris

ISSN:0091-2751    

DOI:10.1002/jcu.1870200708

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.1870200709

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.1870200710

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.1870200711

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

年代:1992

数据来源: WILEY