Regional myocardial dysfunction: evaluation of patients with prior myocardial infarction with fast CT

A prototype ultrafast cine computed tomographic (CT) scanner, designed specifically for cardiac imaging, was used to evaluate a preliminary series of patients with prior myocardial infarction (n = 21) and a control group without coronary artery disease (n = 5). Multilevel 50-msec CT scan exposures w...

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Published inRadiology Vol. 157; no. 3; p. 735
Main Authors Lipton, M J, Farmer, D W, Killebrew, E J, Bouchard, A, Dean, P B, Ringertz, H G, Higgins, C B
Format Journal Article
LanguageEnglish
Published United States 01.12.1985
Subjects
Adult
Aged
Cineradiography
Coronary Angiography
Female
Heart - diagnostic imaging
Humans
Male
Middle Aged
Myocardial Contraction
Myocardial Infarction - diagnostic imaging
Myocardial Infarction - physiopathology
Tomography, X-Ray Computed - methods
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Summary:A prototype ultrafast cine computed tomographic (CT) scanner, designed specifically for cardiac imaging, was used to evaluate a preliminary series of patients with prior myocardial infarction (n = 21) and a control group without coronary artery disease (n = 5). Multilevel 50-msec CT scan exposures were obtained during peripheral intravenous bolus injections of contrast medium. A comparison was made between cine-CT scans and standard left ventriculographic images in assessing segmental left ventricular motion. Results indicate that cine CT, performed at sufficiently rapid speeds (20 scans per second) to allow useful analysis of regional ventricular wall motion, can provide adequate image quality. Analysis of 110 segments revealed a good correlation (90.9%) between the two techniques in characterizing normal from abnormal regional wall motion. Cine CT, based on this initial study, demonstrates considerable potential for evaluating not only cardiac chamber dimensions but also segmental wall dynamics.
ISSN:0033-8419
DOI:10.1148/radiology.157.3.4059561