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Table 2 Differences in mean ischemic area between EXINI and the other software packages

From: Area of ischemia assessed by physicians and software packages from myocardial perfusion scintigrams

EXINI (extent) vs:

Differences in mean ischemic area

P-value

Mean ischemic area ± SD (%)

EXINI (SD%)

-2.4

0.75

14.7 (± 8.2)

4DM (extent)

-0.4

0.99

16.6 (± 13.1)

4DM (SD%)

-5.6

0.023

11.4 (± 8.6)

ECT (extent)

-4.4

0.12

12.5 (± 10.4)

ECT (SD%)

-8.3

<0.001

8.8 (± 6.7)

QPS (extent)

-5.3

0.036

11.7 (± 9.4)

QPS (SD%)

-7.3

<0.001

9.7 (± 7.7)

  1. The right columns shows mean ischemic area ± SD (%) of the respective software packages.
  2. EXINI (extent): extent (%) of ischemic defect.
  3. EXINI (SD%): amount (%) of ischemic defect based on 5-point/17-segment model.