ISSN:0091-2751    

DOI:10.1002/jcu.1870090311

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

年代:1981

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870090312

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

年代:1981

数据来源: WILEY

摘要:

AbstractOn transverse ultrasound scans a small number of patients with a paucity of retroperitoneal fat show an initial false impression of a left renal artery aneurysm due to the confluence of two normal findings. The left renal vein is unusually prominent from the hilum of the left kidney to the area between the superior mesenteric artery and the aorta; and part of the normal aortic wall, adjacent to the left renal vein, is incompletely imaged. Explanations for the prominence in the left renal vein and the partial visualization of the aortic wall are discussed, and various maneuvers that allow for accurate identification of both are described. The use of this analysis should prevent the incorrect diagnosis of a left renal artery aneurysm, which might lead to more invasive diagnostic procedures.

ISSN:0091-2751    

DOI:10.1002/jcu.1870090302

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

年代:1981

数据来源: WILEY

摘要:

AbstractA retrospective analysis of 102 patients with clinically suspected placenta previa revealed that ten women (10%) were correctly diagnosed as having placenta previa, while two women (2%) had false‐positive diagnoses. Three of the ten women who were correctly diagnosed as having placenta previa had scans that could easily have been misinterpreted as normal. Because a false‐negative diagnosis of placenta previa is clinically much more serious than a false‐positive diagnosis, these cases are elaborated upon. Recognition of a laterally positioned placenta previa and observation of blood in the region of the internal cervical os should minimize false‐negative diagnostic

ISSN:0091-2751    

DOI:10.1002/jcu.1870090303

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

年代:1981

数据来源: WILEY

摘要:

AbstractIn a controlled study, rapid oral hydration was found to result in sonographically visible pelvic fluid collections in six of 12 healthy women volunteers. These pelvic fluid collections were in many ways indistinguishable from those seen in a variety of pelvic diseases. An awareness of this association should result in a further reduction of false‐positive diagnoses at pelvic sonograph

ISSN:0091-2751    

DOI:10.1002/jcu.1870090304

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

年代:1981

数据来源: WILEY

摘要:

AbstractM‐mode echocardiography was used to explore the extent of spontaneous variation in left ventricular dimensions and indices of systolic and diastolic function. Extended records made in 26 subjects at rest were digitized and analyzed by computer. We found considerable beat‐to‐beat variation, in that measurements of five or more consecutive cycles were necessary to provide representative values for minor axis dimensions, while the degree of scatter for derived indices of function was greater. This has to be recognized when serial echocardiography is used to study the progress of disease or the effects of trea

ISSN:0091-2751    

DOI:10.1002/jcu.1870090305

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

年代:1981

数据来源: WILEY

摘要:

AbstractIntravenous carbon dioxide (CO2) was employed to cause echocardiographic contrast in 40 patients. One to 3 cc of medically pure CO2were agitated with 5 to 8 cc of 5% dextrose in water and rapidly injected into an upper extremity vein. Contrast was obtained in all patients. In 33 patients contrast density from 5% dextrose was compared with that from 5% dextrose‐CO2injections. Six of these patients had no contrast on the initial 5% dextrose injection and definite contrast with the subsequent injection containing CO2. Of the 33, 12 patients had initial contrast with 5% dextrose injections and greater contrast density when CO2was added; 15 showed no definite difference; and none had less contrast with intravenous CO2‐5% dextrose than with 5% dextrose alone. Intravenous CO2‐5% dextrose is a useful method of increasing contrast in those patients who fail to demonstrate echocardiographic contrast when routine techniques are employed. It is also safe, provided precautions emphasized in this paper are obs

ISSN:0091-2751    

DOI:10.1002/jcu.1870090306

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

年代:1981

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870090307

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

年代:1981

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870090308

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

年代:1981

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870090309

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

年代:1981

数据来源: WILEY