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EJNMMI Research

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
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