PMID: 19938739Nov 27, 2009Paper

Correlation between myocardial perfusion imaging findings and cardiac events

Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
Arpakorn KositwattanarerkPiyamit Sritara

Abstract

The excellent prognostic value of a normal or near normal stress myocardial perfusion imaging (MPI) has been confirmed in numerous studies. The aim of the present study was to determine the association of MPI findings and cardiac events. Consecutive patients referred from January 2003 to December 2004 by Nuclear Medicine Unit in Ramathibodi Hospital for myocardial perfusion imaging were studied. Visual scoring of perfusion images used 17-segments and a scale of 0-4 was done. Sum stress score (SSS) was generated Cardiac death, death from any cause and nonfatal acute myocardial infarction (MI) were considered major cardiac events, and chest pain and late revascularization > 60 days after testing were considered minor cardiac events. Of the 320 patients studied, 218 subjects who had complete 1-year follow-up, were enrolled. There were 99 patients with normal MPI (SSS < or = 3) and 119 patients with abnormal MPI (SSS > 3). Statistical significance between cardiac events in two groups (p < 0.001) was detected. Among hard events, there were three cardiac deaths (of these, 1 occurred in a patient with normal MPI and 2 in those with abnormal MPI) and no patients had non-fatal MI in both groups. Among minor cardiac events, 17 patients d...Continue Reading

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