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Table 4 Intra- and interobserver variabilities for the 2D speckle-tracking echocardiography-derived indices of left atrial myocardial function

From: Assessment of the ability of the CHA2DS2-VASc scoring system to grade left atrial function by 2D speckle-tracking echocardiography

Variable

Intraobserver

Interobserver

ICC

95% limit of agreement

ICC

95% limit of agreement

LASr (%)

0.994

0.988–0.997

0.949

0.907–0.972

LAScd (%)

0.994

0.989–0.996

0.931

0.684–0.974

LASct (%)

0.992

0.984–0.996

0.921

0.849–0.958

pLASRr (1/s)

0.992

0.981–0.996

0.942

0.850–0.973

pLASRcd (1/s)

0.996

0.993–0.998

0.973

0.952–0.985

pLASRct (1/s)

0.993

0.977–0.997

0.944

0.897–0.969

  1. ICC, intraclass correlation coefficient; LAScd, left atrial longitudinal strain during the conduit phase; LASct, left atrial longitudinal strain during the contraction phase; LASr, left atrial longitudinal strain during the reservoir phase; pLASRcd, peak left atrial longitudinal strain rate during the conduit phase; pLASRct, peak left atrial longitudinal strain rate during the contraction phase; pLASRr, peak left atrial longitudinal strain rate during the reservoir phase
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BMC Cardiovascular Disorders

ISSN: 1471-2261

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