Myocardial Perfusion Imaging with^99mTc-Albumin Microspheres

Abstract

Pre- and postoperative angiograms and myocardial images obtained using the capillary blockade principle were compared in 10 dogs in which a left ventricular mural injury had been produced surgically by means of a crush clamp. Care was taken to avoid damage to the major coronary arterial branches during surgical injury. Postoperative myocardial images demonstrated a left ventricular perfusion defect in 8 of the 10 dogs. The authors stress (a) the importance of imaging the injured area of the myocardium in tangent and (b) the supplementary nature of the information gained from myocardial imaging and coronary angiography.