Use of Technetium-99m-Labeled Methoxy-Isobutyl Isonitrile and Iodine 123-Labeled Phenyl-Methyl-Pentadecanoic Acid in the Diagnosis and Prognosis of Patients with Dilated Cardiomyopathy

The objective of this study is to assess perfusion and metabolic state of the left ventricular in patients with dilated cardiomyopathy (DCM) using scintigraphy with MIBI and BMIPP, as well as to develop the predictors of efficacy of cardiac resynchronization therapy (CRT). The study included 51 patients with DCM who underwent CRT. Correlation between the values of LV ESV after CRT and preoperative perfusion and metabolic defects sizes was detected. "Responders" and "non-responders" groups were significantly different from the perfusion and metabolic defects sizes. Myocardial perfusion-metabolic scintigraphy can be used as additional criteria for the selection of patients for CRT.