ISSN:0091-2751    

DOI:10.1002/jcu.1870060602

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

年代:1978

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870060603

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

年代:1978

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870060604

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

年代:1978

数据来源: WILEY

摘要:

AbstractAn electronic system for measuring area and perimeter directly on cross‐sectional ultrasonic images is described. The resulting values are unaffected by the distortions common to display monitors or errors in the display scale factor. The results of accuracy tests are given, including a comparison with measurements by planimeter and map‐measu

ISSN:0091-2751    

DOI:10.1002/jcu.1870060605

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

年代:1978

数据来源: WILEY

摘要:

AbstractThe physical principles and clinical applications of a high‐resolution, dynamically focused phased‐array real time ultrasound system are described. Advantages of the real time technique include rapid survey capability, efficient selection of an appropriate tomographic plane, identification of pulsating structures, and dynamic studies. The capabilities of a high resolution phased array with extended dynamic focusing to a range of 15‐20 cm are demonstrated in vascular, abdominal, and obstetric imaging. Appropriate clinical examples showing normal and pathological anatomy are presented. Comparisons with conventional B scans are illust

ISSN:0091-2751    

DOI:10.1002/jcu.1870060606

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

年代:1978

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870060607

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

年代:1978

数据来源: WILEY

摘要:

AbstractAn echocardiographic correlate for a post‐valvulotomy mid‐systolic click is described. Simultaneous echocardiographic and phonocardiographic studies demonstrated that the click was temporally related to a sudden midsystolic posterior motion of part of the mitral valve apparatus. This temporal relationship suggests that the sudden change in position of portions of the mitral valve resulted in the loud midsystolic click. In our patient the sudden leaflet movement associated with the click was apparently a localized abnormal

ISSN:0091-2751    

DOI:10.1002/jcu.1870060608

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

年代:1978

数据来源: WILEY

摘要:

AbstractSignificant sonic shadowing originating from a structure within the hepatic parenchyma is unusual and often denotes pathology. The differential diagnosis (choledocholithiasis, air in the biliary tree, calcified tissue, foreign bodies, and shadowing from normal structures) is reviewed and examples are presented.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060609

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

年代:1978

数据来源: WILEY

摘要:

AbstractIn the presence of a solid intrarenal mass, ultrasound scans should not be limited to the mass itself. Modern commercial gray scale equipment is capable of demonstrating both tumor extension into the inferior vena cava and the metastatic disease to the liver. The presence of multiple solid intrarenal masses favors the diagnosis of metastatic disease to the kidney or multiple angiomyolipomas. Retroperitoneal lymphadenopathy or an adrenal mass coincidental with an intrarenal mass suggests metastatic disease. These possibilities can be detected by echography if prone scans are performed over the suprarenal region and the contralateral kidney, and supine scans are performed for evaluation of the inferior vena cava, liver, and retroperitoneum.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060610

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

年代:1978

数据来源: WILEY

摘要:

AbstractThis paper describes two cases of left ventricular aneurysm following myocardial infarction by real time B mode echocardiography with a mechanical sector scan. The most distinctive feature was the paradoxical movement of the aneurysmal wall; in systole, it moved posteriorly to form a bulge, whereas the remaining noninfarcted area was oriented toward the left ventricular cavity in contraction. The final diagnosis was verified by aneurysmectomy.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060611

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

年代:1978

数据来源: WILEY