[Use of Tl-201 in the diagnosis of parietal left-ventricular thrombi].

The authors have proposed a method for the determination of left ventricular parietal thrombi to form isolated images of the left ventricular cavity (by the 1st passage of 201Tl) and its walls in the same projection in the computer memory. After special processing the images are superimposed: the coincidence of the contours of the cavity and myocardial wall will suggest the absence of a thrombus, noncoincidence of the contours in some place will suggest the site and size of a thrombus. The method is safe for a patient and does not require additional manipulations.