Accuracy of two dimensional strain for the diagnosis of coronary artery disease - an angiographic comparison

Leano, Rodel, Cho, Goo-Yeong, Jeffriess, Leanne, Chan, Jonathan and Marwick, Thomas H. (2005). Accuracy of two dimensional strain for the diagnosis of coronary artery disease - an angiographic comparison. In: Heart Lung and Circulation: Abstracts for Cardiac Society of Australia and New Zealand Annual Scientific Meeting. Cardiac Society of Australia and New Zealand Annual Scientific Meeting, Perth, Western Australia, (S46-S46). 5th - 8th August, 2005. doi:10.1016/j.hlc.2005.04.007


Author Leano, Rodel
Cho, Goo-Yeong
Jeffriess, Leanne
Chan, Jonathan
Marwick, Thomas H.
Title of paper Accuracy of two dimensional strain for the diagnosis of coronary artery disease - an angiographic comparison
Conference name Cardiac Society of Australia and New Zealand Annual Scientific Meeting
Conference location Perth, Western Australia
Conference dates 5th - 8th August, 2005
Proceedings title Heart Lung and Circulation: Abstracts for Cardiac Society of Australia and New Zealand Annual Scientific Meeting   Check publisher's open access policy
Place of Publication Carlton South, Vic.
Publisher Blackwell Publishing Asia
Publication Year 2005
DOI 10.1016/j.hlc.2005.04.007
ISSN 1443-9506
1444-2892
Volume 14
Issue 1, Supplement 1
Start page S46
End page S46
Total pages 1
Language eng
Formatted Abstract/Summary Tissue Doppler Strain (SRI) has been previously validated
in the quantitative assessment of ischemic heart disease.
2D strain is a novel technique that allows rapid offline
analysis with automated tissue tracking capabilities and
reduced angle dependency. We sought to examine the
role of 2D strain in diagnosis of coronary artery disease.
Eighty-five patients (age 63±11, 13 female) with known or
suspected coronary diseaseunderwentDobutaminestress
echocardiography and coronary angiography. 2D strain
rate (SR) and end-systolic strain (ESS) were measured at
rest and during peak stress in those segments supplied by
the left anterior descending coronary artery (LAD).Atotal
of (935) segments supplied by the LAD territory were analyzed.
The patients were divided into 2 groups according
to severity of LAD stenosis. Of 85 patients, 31 had significant
LAD stenosis >75%. Those LAD territory segments
with significant LAD stenosis had significantly lower resting
SR, peak SR, resting ESS, and peak ESS (Table). The
area of ROC curve was 0.91 for peak SR and 0.88 for peak
ESS to diagnoseLADstenosis of≥75%. Therewas good intraobserver
(r = 0.91, p < 0.001; mean difference 0.00±0.27)
and interobserver variation (r = 0.82, p < 0.001; mean difference
−0.03±0.40) for 2D strain measurement. Therefore,
2D strain is a new technique that is useful in the detection
and quantification of coronary artery disease. Measurements
with 2D strain are both accurate and reproducible.

Subjects EX
110201 Cardiology (incl. Cardiovascular Diseases)
110299 Cardiovascular Medicine and Haematology not elsewhere classified
Q-Index Code EX
Additional Notes Abstract no. 112-- CSANZ 2005

 
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Created: Thu, 23 Aug 2007, 20:24:58 EST