ISSN:
1432-1084
Keywords:
Right ventricle
;
Tomography
;
Gated blood pool
;
Phase analysis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract Gated tomography of the cardiac blood pool has been found to be useful for detecting regional wall motion abnormalities of the left ventricle. We have applied this technique to study regional wall motion of the right ventricle. Twenty normal controls and 38 patients with previous myocardial infarction underwent tomography of the right ventricle following in vivo labelling of the blood pool. Three dimensional images were produced using a transputer based display system. These images were oriented into a right anterior oblique projection, and phase maps of the right ventricle superimposed onto them. The phase maps from the controls showed contraction to begin in the region of the apex and spread laterally and superiorly up the free wall of the right ventricle. Normal right ventricular phase was found to lie in a 200 degree range. In one of 20 patients with anterior and in 11 of 18 patients with inferior myocardial infarction, there were focal areas of right ventricle with phase angles outside this range. These results suggest that the contraction phase pattern of the right ventricle may be used to detect right ventricular contraction abnormalities after myocardial infarction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00171391
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