Relationship between LVD indices and radiation defects on Gated-SPECT Perfusion point n PSD HBW Mean p Mean p SRS ≤ 13 65 41.27 ± 16.57 <0.05 128.66 ± 64.42 <0.05 > 13 41 60.44 ± 18.09 196.63 ± 63.66 SSS ≤ 13 50 40.58 ± 15.95 <0.05 130.52 ± 66.27 <0.05 >13 56 55.93 ± 19.64 176.77 ± 70.35 SDS ≥7 14 448.8 ± 23.17 > 0.05 145.5 ± 71.51 > 0.05 <7 92 48.7 ± 19.03 156.4 ± 72.32 The group of patients with SSS or SRS score>13 had significantly higher PSD and HBW than patients with SSS or SRS score <13.