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Angiology
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The Resting Cardiointegram: Correlation with Stress Thallium Perfusion Studies

Lawrence A. Gould, M.D., F.A.C.A., F.I.C.A.

The Methodist Hospital, Brooklyn, New York

Robert Betzu, M.D.

The Methodist Hospital, Brooklyn, New York

David Judge

The Methodist Hospital, Brooklyn, New York

Jae Lee, M.D.

The Methodist Hospital, Brooklyn, New York

Matilda Taddeo, M.D.

The Methodist Hospital, Brooklyn, New York

David Yang, M.D., F.A.C.A.

The Methodist Hospital, Brooklyn, New York

The cardiointegram is a noninvasive technique for the analysis of the electrical signals of the heart obtained by a transformation of the voltage versus time format by a series of integrations. The stress thallium perfusion study is a widely used test for the detection of coronary artery disease. In order to evaluate the correlation between the resting cardiointegram and the stress thallium 201 perfusion study, 20 patients with normal resting electrocardiograms underwent stress thallium tests and resting cardiointegrams. The cardiointegram was determined on two resting complexes of leads I, II, V4, V 5, and V6 and called abnormal if five of ten complexes deviated outside a normalized template. There was concordance of the cardiointegram and the thallium study in 16 of 20 patients (80%). The sensitivity for the detection of coronary artery disease was 71%, and the specificity was 80%. The overall accuracy was 74%. Thus in patients with normal electrocardiograms, the cardiointegram is a useful noninvasive test for the detection of coronary artery disease.

Angiology, Vol. 39, No. 4, 375-380 (1988)
DOI: 10.1177/000331978803900408
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