ISSN:0091-2751    

DOI:10.1002/jcu.1870060202

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

年代:1978

数据来源: WILEY

摘要:

AbstractThe correct interpretation of echo amplitude patterns of high‐resolution gray scale ultrasonograms of the breast requires the use of calibrated color‐coded isodensitometry, standardized operation of the ultrasound system, amplitude stability of 1 per cent or better, and a constant velocity water‐coupled electro‐mechanical scanner. The same conditions may be required for correct interpretation of the ultrasonograms of the parenchyma of the liver, spleen, ovaries, testes, uterus, thyroid, and tumors. Color coding is not required and may actually be detrimental in the study of gross ultrasonographic anatomy and in disease states that can be identified by simple anatomical distortions. To be of value, rigid standardization and control of the amplitude characteristics and scanning velocity of the system are imp

ISSN:0091-2751    

DOI:10.1002/jcu.1870060203

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

年代:1978

数据来源: WILEY

摘要:

AbstractThe appearance of the portal vein as it crosses anterior to the inferior vena cava and enters the liver at the porta hepatis was evaluated on 100 longitudinal and 100 transverse ultrasonograms. Three major variations were noted on the parasagittal scans, while four major variations were evident on the transverse images. These variations were primarily related to the size of the left portal vein and the angle at which the left portal vein coursed away from the main portal vein. The appearance and course of the proximal right portal vein was extremely constant and may therefore be used as a landmark to detect pathologic processes in the porta hepatis. Detection of altered anatomy in this region may be especially helpful in correctly differentiating dilated intrahepatic bile ducts from normal portal veins.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060204

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

年代:1978

数据来源: WILEY

摘要:

AbstractThe appearance of dilated intrahepatic bile ducts was evaluated on ultrasonograms of 50 patients with proven extrahepatic biliary obstruction. Five characteristic changes allowed differentiation between biliary and portal venous systems. These changes included: (1) Alteration in the anatomic pattern adjacent to the main right portal venous segment and the main portal vein bifurcation. (2) Irregular walls of dilated bile ducts. (3) Stellate confluence of dilated bile ducts. (4) Acoustic enhancement by dilated bile ducts. (5) Peripheral location of dilated bile ducts. Many patients exhibited more than one of these findings. Parasagittal scans of the main right portal vein were the most sensitive for detection of intrahepatic ductal dilatation. Recognition of the characteristic changes and knowledge of the portal venous anatomy makes it possible to diagnose extrahepatic biliary obstruction with a high degree of confidence.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060205

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

年代:1978

数据来源: WILEY

摘要:

AbstractEchocardiographic measurements in 47 asymptomatic hypertensive patients were correlated with duration and severity of blood pressure elevation and with optic fundoscopic findings. These observations were also compared with electrocardiographic and chest roentgenographic measurements. Echo left ventricular wall thickness (LVWT) correlated best with duration of known hypertension. For 22 recent hypertensive patients the LVWT mean was 0.9 ± 0.3 cm whereas mean LVWT for 25 patients hypertensive for five or more years was 1.3 ± 0.2, (p ≤ 0.01). More severe initial diastolic pressure and the presence of hypertensive fundi also correlated with increased wall thickness. Increased left atrial diameter (≥ 2 cm m2) was observed primarily in the presence of longstanding disease. ECG and cardiothoracic ratio by xray did not correlate highly with the echo abnormalities. These observations suggest that echocardiography may be a sensitive and early means of recognizing cardiac changes in hypertensive pat

ISSN:0091-2751    

DOI:10.1002/jcu.1870060206

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

年代:1978

数据来源: WILEY

摘要:

AbstractContinous observation of fetal movement patterns is a novel and useful capability of new high‐speed ultrasound imaging systems. Confirmatory documentation of human fetal breathing as a component of these movement patterns has been achieved using a phased‐array real time ultrasound sector scanning system.* This system permits direct visualization of fetal breathing movements. Permanent recordings can be made on videotape. Recordings can also be made as a time‐motion echocardiogram during continuous observation of the full sector. Fetal breathing movements were seen in five patients. The earliest period of gestation at which fetal breathing was seen was 20

ISSN:0091-2751    

DOI:10.1002/jcu.1870060207

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

年代:1978

数据来源: WILEY

摘要:

AbstractOne hundred fifty nine pelvic ultrasonic examinations were performed; 54 were verified. The relative diagnostic accuracy of ultrasound, intravenous pyelograms, and barium enemas in detecting pelvic masses is discussed. Ultrasound is highly accurate except in ascites. While barium enema and intravenous pyelogram are both inaccurate. Ultrasound should be the initial examination for the evaluation of patients with a possible pelvic mass.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060208

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

年代:1978

数据来源: WILEY

摘要:

AbstractTwo cases of abdominal ascites in which a mass lesion was simulated on the roentgenogram are reported. Sonography permits ready differentiation of an encapsulated from a nonencapsulated fluid collection.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060209

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

年代:1978

数据来源: WILEY

摘要:

AbstractAn infant presented with symptoms of congestive heart failure. Ultrasound examination revealed a dense layer of echoes at the root of the aorta, a large anterior pericardial effusion, and coarse fluttering of the right ventricular wall. The clinical diagnosis of intrapericardial teratoma was confirmed by cineangiography and surgical resection. The pathological examination was consistent with benign teratoma. A postoperative ultrasound examination revealed absence of pericardial effusion and tumor echoes. This appears to be the first echocardiographic report of a pericardial tumor in an infant.

ISSN:0091-2751    

DOI:10.1002/jcu.1870060210

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.1870060211

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

年代:1978

数据来源: WILEY