Document Detail


Computed tomography for patient management in coronary artery disease.
MedLine Citation:
PMID:  1884508     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Computed tomography (CT) represents the optimum theoretical approach to x-ray imaging. This conclusion results from an awareness of CT's capacity to solve the fundamental limitation of all forms of x-ray imaging--the superimposition of anatomic structures. Because CT is potentially a fully three-dimensional method, this problem is addressed in a manner not subject to the risks, complications, and technical limitations of selective angiography, subtraction angiography, tomography, and other techniques. Ultrafast CT provides a broad spectrum of useful quantitative cardiac data during one minimally invasive procedure. Therefore, the optimism for cine CT imaging of the heart is well founded. Apart from the demonstration of anatomic structures in any reconstructed plane and in movie format, without the need for any form of electrocardiographic gating, this new generation of millisecond CT scanners offers a unique potential for measuring myocardial mechanics and perfusion. Myocardial integrity can be evaluated by measuring myocardial wall thickening, which is a sensitive indicator of blood flow. It can also be assessed by time-density changes derived from analyzing the passage of contrast medium through thin slices of myocardium. Feasibility studies have demonstrated that this should be possible in the clinical setting by use of fast CT scanning. The radiation exposure to the patient with cine CT is low and comparable to, or less than, that of conventional CT and 10-15% of that received during angiocardiography; therefore, it is not a practical limitation. Further clinical and research studies are needed to determine the future role of this exciting new modality in the diagnosis and management of patients with heart disease.
Authors:
M J Lipton; W W Holt
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Multicenter Study    
Journal Detail:
Title:  Circulation     Volume:  84     ISSN:  0009-7322     ISO Abbreviation:  Circulation     Publication Date:  1991 Sep 
Date Detail:
Created Date:  1991-10-04     Completed Date:  1991-10-04     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0147763     Medline TA:  Circulation     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  I72-80     Citation Subset:  AIM; IM    
Affiliation:
University of Chicago, Department of Radiology, IL 60637.
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MeSH Terms
Descriptor/Qualifier:
Chronic Disease
Cineradiography
Coronary Artery Bypass
Coronary Circulation
Coronary Disease / radiography*,  surgery
Fluoroscopy
Hemodynamics
Humans
Microspheres
Stroke Volume
Tomography, X-Ray Computed*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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