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Title: Cardiac imaging with a high-speed Cine-CT Scanner: preliminary results

CT scans were obtained with a Cine-CT Scanner that uses a rapidly moving focused electron beam. The 50-msec CT scans were obtained at two transverse levels simultaneously through the hearts of a series of four normal dogs and six patients, four with coronary artery disease and two with hypertrophic cardiomyopathy. Two scanning mode options were chosen. Myocardial wall thickening and motion were studied by obtaining ten 50-msec CT exposures during one heartbeat within less than one second (Cine-CT mode). Regional myocardial blood flow was assessed by obtaining approximately 20 scans at the same level of the left ventricle. These initial studies show the feasibility of defining regional and global myocardial contraction using the Cine-CT mode, and the considerable potential for measuring regional myocardial perfusion using the flow (dynamic) mode.
Authors:
; ; ;
Publication Date:
OSTI Identifier:
6334651
Resource Type:
Journal Article
Resource Relation:
Journal Name: Radiology; (United States); Journal Volume: 152:3
Research Org:
Univ. of California, San Francisco
Country of Publication:
United States
Language:
English
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; BLOOD FLOW; DYNAMIC FUNCTION STUDIES; HEART; COMPUTERIZED TOMOGRAPHY; IMAGE SCANNERS; PERFORMANCE; DOGS; MYOCARDIUM; PATIENTS; ANIMALS; BODY; CARDIOVASCULAR SYSTEM; DIAGNOSTIC TECHNIQUES; MAMMALS; MUSCLES; ORGANS; TOMOGRAPHY; VERTEBRATES 550602* -- Medicine-- External Radiation in Diagnostics-- (1980-)