+ The patient had an Electrocardiographically gated myocardial perfusion SPECT to assess the position, degree of radiation injury, to calculate a summed rest score (SRS), summed stress score (SSS) and the difference between the two phases, to assess the viability of myocardial, structure index and cardiac function including Dd, Ds, EDV, ESV, EF and parameters to evaluate left ventricular dyssynchrony including standard deviation the onset of contraction in more than 600 left ventricular myocardial regions (PSD) andthe interval that 95% of the myocardial regions begin to contract (HBW).