Skip to main content

Table 1 Characteristics of the study population

From: Comparison of diagnostic performance of four software packages for phase dyssynchrony analysis in gated myocardial perfusion SPECT

  Patients with P value
Normal perfusion and cardiac function Suspected LV dyssynchrony
Men/women 62/60 25/9 n.s.
Mean age (y) 58.9 ± 12.3 64.1 ± 12.2 0.029
Height (cm) 161 ± 8.1 160 ± 8.8 n.s.
Weight (kg) 58.8 ± 10.4 60.9 ± 12.1 n.s.
BMI (kg/m2) 22.5 ± 3.0 23.7 ± 3.9 n.s.
BSA (m2) 1.61 ± 0.16 1.63 ± 0.18 n.s.
LV function
 LVEF (%) 74.3 ± 5.7 52.0 ± 18.0 <0.0001
 LVEDV (mL) 83.5 ± 3.6 145.0 ± 6.8 <0.0001
 LVESV (mL) 21.5 ± 6.7 79.7 ± 68.1 <0.0001
LV phase distribution
 Bandwidth (°) 38.4 ± 10.4 114.0 ± 84.6 <0.0001
 Phase SD (°) 9.7 ± 0.88 27.7 ± 1.7 <0.0001
 Entropy (%) 41.9 ± 6.2 63.2 ± 16.2 <0.0001
Myocardial perfusion
SRS
0.6 ± 1.2 7.9 ± 9.5 <0.0001
  1. LVEF, LVEDV, LVESV, bandwidth, phase SD, and entropy were calculated with a cardioREPO software program. SRS was calculated with a quantitative perfusion score (QPS) software program
  2. Abbreviations: BMI body mass index, BSA body surface area by the DuBois formula, LV left ventricular, EF ejection fraction, EDV end-diastolic volume, ESV end-systolic volume, SD standard deviation, SRS summed rest score