ISSN:0091-2751    

DOI:10.1002/jcu.1870050402

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

年代:1977

数据来源: WILEY

ISSN:0091-2751    

DOI:10.1002/jcu.1870050403

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

年代:1977

数据来源: WILEY

摘要:

AbstractA detailed comparison of computed tomography and ultrasonography of the abdomen is presented from a theoretical point of view. The advantages and limitations of both modalities are discussed in terms of scan content, resolution, plane of interrogation, dynamic imaging, examination time, imaging problems, automation, contrast administration, puncture guidance, examination availability, hazards, personnel and space requirements, and cost. Analysis of these factors leads the authors to conclude that ultrasound should be the procedure of choice for sectional imaging of the abdomen. Computed tomography should be reserved for those situations in which the ultrasound examination is not diagnostic (.e., skeletal system, lungs, mediastinum).

ISSN:0091-2751    

DOI:10.1002/jcu.1870050404

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

年代:1977

数据来源: WILEY

摘要:

AbstractHigh‐quality echocardiograms were performed on 146 normal individuals whose ages ranged from 3 to 73 years (mean 27 years). Normal values for mitral diastolic excursion and E‐F slope, the chamber dimensions of the right ventricle, left atrium, and left ventricle, the aortic root dimension, and thickness of the interventricular septum and left ventricular posterior wall were determined. Each tracing was then read independently by two experienced echocardiographers. The extent of interobserver variability was calculated and expressed as a percent of the mean. The 95 per cent confidence limits for these estimates were calculated. Small but significant interobserver variability was found for all nine of these commonly measured echocardiographic parameters. Observer variability is a small but potentially important consideration in investigative echocardiogra

ISSN:0091-2751    

DOI:10.1002/jcu.1870050405

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

年代:1977

数据来源: WILEY

摘要:

AbstractThe prevalence of mitral valve prolapse has been established in selected groups of patients but not in the general population. The present study was designed to define the echocardiographic spectrum of mitral valve motion in a population of young individuals without clinical evidence of significant cardiac disease or hypertension. Echocardiograms were performed on 136 normal volunteers. Six subjects (4.4 per cent) had mitral valve prolapse. Eighteen subjects (13.2 per cent) had a lesser degree of posterior systolic motion of the mitral valve leaflets which was suggestive but not diagnostic of prolapse. Minor degrees of posterior systolic mitral valve otion may represent a variant of normal. Caution should be exercised in making the echocardiographic diagnosis of mitral prolapse until this question is settled.

ISSN:0091-2751    

DOI:10.1002/jcu.1870050406

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

年代:1977

数据来源: WILEY

摘要:

AbstractFourteen patients are presented to illustrate the usefulness of ultrasonography in assessing masses of the neck. Included are five patients with primary tumors, two with metastasis to a cervical node, three with cervical adenitis, two with simple cysts, and two with hematoma related to endarterectomy for occlusive disease of the carotid artery.

ISSN:0091-2751    

DOI:10.1002/jcu.1870050407

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

年代:1977

数据来源: WILEY

摘要:

AbstractThe authors discuss the value of routinely using the left lateral decubitus position for ultrasound evaluation of th gall bladder. This technique often affords improved visualizaiton, clarifies abnormalities suspected in the supine position, and in some cases demonstrates a gall bladder that cannot be seen in the supine position.

ISSN:0091-2751    

DOI:10.1002/jcu.1870050408

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

年代:1977

数据来源: WILEY

摘要:

AbstractThe classical ultrasonic description of a chronic ectopic pregnancy is a slightly enlarged uterus with uniform internal echoes and no evidence of an intrauterine pregnancy, combined with an extrauterine semicystic mass, gestational sac, or fetal structures. It is our experience that the ultrasonographer more commonly finds a midline pelvic mass containing irregular echo patterns and cystic areas. The mass may also be associated with abdominal or pelvic fluid and obliteration of normal anatomical structures. We wish to emphasize these variations from the classical description with illustrations that demonstrate the differences in the ultrasonic presentation of chronic ectopic pregnancy.

ISSN:0091-2751    

DOI:10.1002/jcu.1870050409

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

年代:1977

数据来源: WILEY

摘要:

AbstractThe size of postmenopausal uterus varies, but after 65 years of age, it routinely appears atrohic. A pelvic mass in this age group should not be assumed to be within the uterus unless a careful search excludes an atrophic uterus. Single sweep longitudinal ultrasound sections are the best method of localizing a small uterus, but sometimes gain settings must be varied to demonstrate the organ.

ISSN:0091-2751    

DOI:10.1002/jcu.1870050410

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

年代:1977

数据来源: WILEY

摘要:

AbstractHepatic metastases or mass lesion near the head of the pancreas are usually found when echograms are performed on patients with malignant disease of the biliary tract. Atypical cholesonograms may result when the gall bladder itself is deformed or invaded by tumor, when tumor obstructing the bile duct is plaquelike and not detectable as a mass lesion, or when gall stones coexist as a purely incidental finding.

ISSN:0091-2751    

DOI:10.1002/jcu.1870050411

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

年代:1977

数据来源: WILEY