[The reliability of myocardial scintigraphy with thallium201, A comparison with lacvocardiography and perfusion scintigraphy (author's transl)].

Eighteen patients were investigated by laevocardiography, perfusion scintigraphy and with a 201thallium scan. In four patients with normal contractility of the left ventricle, normal uptake of 202thalium was found in every patient. Hypokinesia of the anterior wall or apex of the ventricle showed normal uptake on the 201thallium scintigram in four out of five patients. It follows that it is not usually possible to diagnose hypokinetic mural portions on 201thallium scintigrams without quantitative analysis. Our experience up to date with areas of akinesia has shown that it is possible to demonstrate areas of scarring (as negative contrast) in seven out of nine cases.