Assessment of reverse redistribution on exercise 201Tl myocardial SPECT in patients with hypertrophic cardiomyopathy

Reverse redistribution is revealed on exercise 201Tl myocardial SPECT in some cases with hypertrophic cardiomyopathy. Ten patients with hypertrophic cardiomyopathy without coronary artery disease who showed reverse redistribution visually were studied. Reverse redistribution was evaluated by the ear...

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Bibliographic Details
Published in:	Kaku igaku Vol. 30; no. 6; p. 675
Main Authors:	Taniguchi, Y, Sugihara, H, Ootsuki, K, Umamoto, I, Nakagawa, T, Shima, T, Nakamura, T, Azuma, A, Kohno, Y, Nakagawa, M
Format:	Journal Article
Language:	Japanese
Published:	Japan 01-06-1993
Subjects:	Adult Cardiomyopathy, Hypertrophic - diagnostic imaging Exercise Test Heart - diagnostic imaging Humans Male Middle Aged Thallium Radioisotopes Tomography, Emission-Computed, Single-Photon
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Summary:	Reverse redistribution is revealed on exercise 201Tl myocardial SPECT in some cases with hypertrophic cardiomyopathy. Ten patients with hypertrophic cardiomyopathy without coronary artery disease who showed reverse redistribution visually were studied. Reverse redistribution was evaluated by the early and delayed images of exercise 201Tl myocardial SPECT. Relation between reverse redistribution and distribution of left ventricular hypertrophy estimated by echocardiography and magnetic resonance imaging was investigated, and the mechanism of reverse redistribution was analyzed by referring to Bull's eye display of washout rate. Reverse redistribution was displayed in non-hypertrophic region and washout rate was normal in that region and low in hypertrophic region. In conclusion, in order to interpret reverse redistribution it is necessary to recognize hypertrophic region and to refer to washout rate.
ISSN:	0022-7854