摘要:

AbstractA high‐resolution ultrasound B‐mode imaging system combined with a 16‐sequential range‐gated pulsed Doppler flow measuring device was used for the evaluation of nonstenotic extracranial carotid artery disease. Various types of atherosclerotic lesions were differentiated by Duplex system examinations in 54 carotid arteries examined in vitro in a postmortem study and in 51 carotid arteries examined in vivo from patients with angiographically proven cerebrovascular disease. In addition, the multigated Doppler system allowed the analysis of flow velocity profiles throughout the carotid arteries, the distinction between intraarterial flow and recent thrombus, and in particular the estimation of local flow alterations, which are diagnostic in the presence of sonolucent and shadowed plaques behind echo‐dense lesions. A number of difficulties, which at present limit the application of Duplex system examination as a noninvasive „stand alone”︁ method for detecting carotid disease

ISSN:0091-2751    

DOI:10.1002/jcu.1870120802

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

年代:1984

数据来源: WILEY

摘要:

AbstractThe ultrasonic findings in 10 patients with diffuse leukemic infiltration of the kidneys are described. The findings are analogous to those seen pathologically and include enlargement of the kidneys, diffuse leukemic infiltration of the renal cortex with sparing of the adjacent medullae, loss of definition and distortion of the renal sinus echo complex and a focal mass. The ultrasound findings correlated well with those seen with intravenous urography making it the preferable screening modality for the initial detection of renal involvement. subseauent follow‐up, and response to therapy in leukemic patient

ISSN:0091-2751    

DOI:10.1002/jcu.1870120803

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

年代:1984

数据来源: WILEY

摘要:

AbstractUsing a high‐resolution real‐time scanner, a technique has been established in our laboratory for visualizing the entire extrahepatic bile duct with multiple longitudinal oblique approaches and, if necessary, several transverse scans through the pancreatic head. To determine the normal size of the extrahepatic bile duct and to evaluate the effect of aging on the duct diameter, 256 healthy subjects and patients without hepatobiliary disease were examined using this technique from January to August, 1982. The entire extrahepatic duct was detected in 203. The inner diameter of the widest point of the duct varied from 1 mm to 10 mm, and was found to be agedependent (r= 0.60,P<0.001). It is concluded that, based on the visualization of the entire extrahepatic duct echographically, the normal inner diameter of common bile duct can be up to 10 mm, and there is a mild change of duct size with

ISSN:0091-2751    

DOI:10.1002/jcu.1870120804

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

年代:1984

数据来源: WILEY

摘要:

AbstractForty‐two patients with various abdominal wall hernias and five patients with inguinal hernias were studied with ultrasonography. Thirteen patients were studied by CT. Although hernias are usually apparent on physical examination, difficulty in diagnosis may be encountered in some patients. Ultrasonography and CT are not only capable of diagnosing hernia in such instances, they are also helpful in the clinical management of the patients by demonstrating the precise location and extent of the muscular defect. However, the hernia may simulate a mass or cyst in the ultrasonograph and CT scan and one should carefully demonstrate intraperitoneal communication through a muscular defect or a herniated bowl loop within the hernia in order to avoid misdiagnosis. Pseudohernias due to localized thinning or thickening of the rectus muscle were also observed in five patient

ISSN:0091-2751    

DOI:10.1002/jcu.1870120805

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

年代:1984

数据来源: WILEY

摘要:

AbstractRotator cuff tears are a common orthopedic problem. The portions of the cuff most commonly torn are accessible to sonographic examination with appropriate positioning of the shoulder. This study was undertaken to correlate the sonographic appearance of the pathologic rotator cuff with findings at the time of surgical repair. Rotator cuff tears are readily seen with high‐resolution real‐time sonography. Sonography can demonstrate tears not demonstrated arthrographically. In the appropriate clinical setting arthrography may not be necessary if the sonogram demonstrates characteristic findi

ISSN:0091-2751    

DOI:10.1002/jcu.1870120806

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

年代:1984

数据来源: WILEY

摘要:

AbstractThe growth of ultrasound applications in diagnostic medicine has helped stimulate related biological effects investigations. Current data related to effects associated with diagnostic ultrasound indicate the need for additional research on cell surface structures, motility and developmental effects. Research on biological effects, especially for evaluating in vivo end points analogous to those employed by investigators using in vitro systems and simple organisms, are needed. Particular emphasis relative to potential effects on fetal and embroyonic development is indicated. Limited data also suggest the need to investigate possible effects on the immune response. There is a growing realization of the potential importance of nonthermal effects and increasing evidence that the temporal peak intensity is potentially related to the production of some effects. A number of recent comprehensive reviews have helped iden‐ tify, analyze and evaluate some of the relevant data. Indexing Words: Biological effeds Safet

ISSN:0091-2751    

DOI:10.1002/jcu.1870120807

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

年代:1984

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870120808

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

年代:1984

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870120809

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

年代:1984

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870120810

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

年代:1984

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870120811

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

年代:1984

数据来源: WILEY