ISSN:0091-2751    

DOI:10.1002/jcu.1870070502

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

年代:1979

数据来源: WILEY

摘要:

AbstractThis anatomic study suggests that an understanding of the thickness of the atrial septum should allow better visualization of most portions of the blade‐shaped atrial septum during cross‐sectional echocardiography, both in normal subjects and in patients with ostium secundum atrial septal defects. The thickness measurements also demonstrate that difficulties in imaging the atrial septum are a function of resolution limits of existing echocardiographic equipm

ISSN:0091-2751    

DOI:10.1002/jcu.1870070503

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

年代:1979

数据来源: WILEY

摘要:

AbstractThe quadratus lumborum muscle has been noted to appear as a hypoechoic structure on sonograms of the abdomen. On occasion its appearance may simulate a pathologic fluid collection such as an abscess or retroperitoneal hematoma. Illustrative examples of this confusing appearance, as well as ways of avoiding this potential pitfall, are presented.

ISSN:0091-2751    

DOI:10.1002/jcu.1870070504

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

年代:1979

数据来源: WILEY

摘要:

AbstractGastric air and peristalsis usually are obstacles to ultrasound imaging of the tail of the pancreas. Fifteen normal volunteers were scanned transversely in the supine position before and after intravenous administration of glucagon (1 mg) and oral administration of water. In 13 of 15 subjects glucagon produced a dilated gastric fundus that retained fluid for 30–60 min, thus allowing good imaging of the pancreatic tail in 10 subjects and fair imaging in 2 subjects. This method of creating a gastric sonic window should prove to be valuable in ultrasound imaging of the pancrea

ISSN:0091-2751    

DOI:10.1002/jcu.1870070505

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

年代:1979

数据来源: WILEY

摘要:

AbstractOne hundred seventy adult patients with possible congenital or valvular heart disease underwent contrast two‐dimensional echocardiographic examination as part of a precatheterization evaluation. Persistent left superior vena cava was detected in 5 patients, each of whom demonstrated an abnormally large coronary sinus. Injection of echocardiographic contrast material from a peripheral left arm vein resulted in early opacification of this structure before other right‐side chambers, thus suggesting abnormal venous drainage. Persistent left superior vena cava was confirmed in all 5 patients at the time of catheterization and/or surg

ISSN:0091-2751    

DOI:10.1002/jcu.1870070506

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

年代:1979

数据来源: WILEY

摘要:

AbstractAntenatal ultrasound diagnoses of gross lymphatic system abnormalities were made in three fetuses. Although the diagnosis was made in only 1 fetus at a stage early enough in pregnancy to allow selective termination, knowledge of the abnormality in the remaining 2 fetuses proved to be valuable for subsequent management of those pregnancies. It is stressed that the extent of the abnormality must be carefully assessed because of the possibility of corrective surgery should the lesion be small and that the parents must be given detailed counseling before any definitive measures are taken.

ISSN:0091-2751    

DOI:10.1002/jcu.1870070507

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

年代:1979

数据来源: WILEY

摘要:

AbstractEighty‐one liver hydatid cysts evaluated by gray‐scale ultrasound were accumulated in our experience over a period of 2 years. The echographic evidence in accordance with our experience can be categorized as follows: (a) nonsuppurative hydatid cysts in which echo‐free area within the fine homogeneous structure of the organ provide the basic clue to the diagnosis; then the echographic appearance of the wall offers further hints to the identity of solitary, multiloculated, and multiple cysts; (b) suppurative hydatid cysts in which, depending on the intensity of secondary microbial infection, the echo‐free area turns to a low, medium, or high level of echoes while holding its constitutional pattern. This report is designed to present the various ultrasound patterns of hydatid disease of the liver and show how ultrasound may be most effective in achieving the correct di

ISSN:0091-2751    

DOI:10.1002/jcu.1870070508

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

年代:1979

数据来源: WILEY

摘要:

AbstractSystolic cusp separation of normal aortic valves has been shown by echocardiography and by angiography to be related to left ventricular stroke volume. In this study, stroke volume was compared with echocardiographic area between the aortic cusps in systole (aortic ejection area). An excellent correlation was observed (r= 0.93) over a wide range of stroke volumes, even in the presence of mitral regurgitation. Stroke volume appears to correlate more closely with aortic ejection area than with angiographic or echocardiographic measurements of peak systolic cusp separation.

ISSN:0091-2751    

DOI:10.1002/jcu.1870070509

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

年代:1979

数据来源: WILEY

摘要:

AbstractA simple technique for obtaining high‐quality echocardiograms of the left ventricle during upright bicycle exercise is described. The use of this method has resulted in left ventricular dimension data that are consistent with the results of studies in conscious, previously instrumented dogs during running. Careful subject selection is important, however, as only 1 of 5 normal subjects was found suitable for these studies. Therefore, we believe that upright exercise echocardiography is feasible in selected subjects and provides useful physiologic information about left ventricular performance during exercis

ISSN:0091-2751    

DOI:10.1002/jcu.1870070510

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

年代:1979

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870070511

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

年代:1979

数据来源: WILEY