Table 4 Intraclass correlation coefficients (95% confidence intervals) in interobserver and intraobserver measurements for peak systolic strain, TESL, and TPSS in the apical anterior segment.

From: Incremental value of early systolic lengthening and postsystolic shortening in detecting left anterior descending artery stenosis using nonstress speckle-tracking echocardiography

 

Interobserver

Intraobserver

Peak systolic strain

0.85 (0.61–0.95)

0.86 (0.65–0.95)

TESL

0.88 (0.69–0.96)

0.98 (0.95–0.99)

TPSS

0.92 (0.78–0.97)

0.96 (0.88–0.99)

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