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. 2014 Oct 1;16(1):72. doi: 10.1186/s12968-014-0072-2

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© Schneeweis et al. ; licensee BioMed Central Ltd. 2014

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Segmental strain analysis. A: Segmental based circumferential strain analysis at rest and during high-dose dobutamine in a patient without WMA and normal coronary angiogram. B: Segmental strain analysis in a patient, who developed a WMA of the anterolateral segment. The Ecc of the neighbouring anterior and inferolateral segments was also impaired. The coronary angiogram showed a corresponding high-grade stenosis of the first diagonal branch. C: Ecc analysis of basal, medial and apical SAX under high-dose dobutamine stress. The depicted strain curves originate from three different patients, who all developed a WMA. Angiography showed high grade stenosis of the left circumflex artery in the patient at the bottom (basal SAX). Both patients in the middle and at the top had stenoses of the left anterior descending artery.