[Digital radiocardioangiography as an auxiliary method for the precise localization of zones of myocardial concentration of 99mTc-Sn(II)-pyrophosphate. Preliminary report].

: A new method is introduced for the superposition of 99mTc-pyrophosphate (PiF) myocardial images on the isolated images of the radioangiocardiographic dextrophase and levophase, in order to include cardiac anatomical references for the accurate topographic localization of the PiF concentration areas. Results in two different patients are presented. In one of them, the PiF concentration was evident at the inferoseptal, inferoapical and posterolateral regions of the left ventricle. In the other, the PiF concentration was evident at the same areas than in the former plus the inferoanterior region of the right ventricle. Our project is to validate this procedure by correlating its results with those obtained through other clinical methods that detect right ventricular infarction.