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@article{1106926,
author = {Hutyra, Martin and Skala, Tomas and Kamínek, Milan and Horak, David and Köcher, Martin and Tudos, Zbynek and Jarkovský, Jiří and Přeček, Jan and Táborský, Miloš},
article_location = {Olomouc},
article_number = {1},
doi = {http://dx.doi.org/10.5507/bp.2012.072},
keywords = {myocardial viability; speckle tracking echocardiography; two-dimensional strain; rest myocardial perfusion imaging; cardiac magnetic resonance imaging; delayed enhancement},
language = {eng},
issn = {1213-8118},
journal = {Biomedical Papers of the Faculty of Medicine of Palacký University, Olomouc, Czech Republic},
title = {Speckle tracking echocardiography derived systolic longitudinal strain is better than rest single photon emission tomography perfusion imaging for nonviable myocardium identification},
volume = {157},
year = {2013}
}
TY - JOUR
ID - 1106926
AU - Hutyra, Martin - Skala, Tomas - Kamínek, Milan - Horak, David - Köcher, Martin - Tudos, Zbynek - Jarkovský, Jiří - Přeček, Jan - Táborský, Miloš
PY - 2013
TI - Speckle tracking echocardiography derived systolic longitudinal strain is better than rest single photon emission tomography perfusion imaging for nonviable myocardium identification
JF - Biomedical Papers of the Faculty of Medicine of Palacký University, Olomouc, Czech Republic
VL - 157
IS - 1
SP - 12-21
EP - 12-21
PB - Palacký University
SN - 12138118
KW - myocardial viability
KW - speckle tracking echocardiography
KW - two-dimensional strain
KW - rest myocardial perfusion imaging
KW - cardiac magnetic resonance imaging
KW - delayed enhancement
N2 - Background. The aim was to compare the speckle tracking echocardiography (STE) derived systolic longitudinal strain (SLSmax) with rest single photon emission computed tomography (SPECT) perfusion imaging (Q(REST)), and to define the optimal cut-offs for SLSmax to discriminate transmural scar on contrast-enhanced magnetic resonance imaging (ceCMR). Methods and Results. In 100 patients with chronic ischemic left ventricular (LV) dysfunction, myocardial viability was assessed using STE and rest SPECT to predict LV segmental relative extent of delayed enhancement (DE) >75% on ceCMR. Correlation was found between regional SLSmax (r=-0.59, P<0.0001) and DE on ceCMR. The SLSmax optimal cut-off -5.3% identified segments with DE>75% on ceCMR (sensitivity 83.1%, specificity 84.6%). Optimal cut-offs SLSmax for segments corresponding to individual perfusion territories (-3.6%, -5.3% and -4.7% for LAD, LCx resp. RCA perfusion territories) were identified. There was a significant difference (AUC 0.866 vs. 0.822 for SLSmax resp. Q(REST), p=0.036) in the accuracy of predicting non-viable segment due to the greater accuracy of SLSmax than Q(REST) in the RCA perfusion territory (AUC 0.893 vs. 0.75 for SLSmax resp. Q(REST), P=0.001). Conclusions. STE enabled identification of LV non-viable segments. Cut-off values derived for perfusion territories of individual coronary arteries improve the accuracy of predicting a transmural scar presence. In comparison with rest myocardial SPECT perfusion imaging, STE is more accurate in predicting non-viable myocardium.
ER -
HUTYRA, Martin, Tomas SKALA, Milan KAMÍNEK, David HORAK, Martin KÖCHER, Zbynek TUDOS, Jiří JARKOVSKÝ, Jan PŘEČEK a Miloš TÁBORSKÝ. Speckle tracking echocardiography derived systolic longitudinal strain is better than rest single photon emission tomography perfusion imaging for nonviable myocardium identification. \textit{Biomedical Papers of the Faculty of Medicine of Palacký University, Olomouc, Czech Republic}. Olomouc: Palacký University, 2013, roč.~157, č.~1, s.~12-21. ISSN~1213-8118. Dostupné z: https://dx.doi.org/10.5507/bp.2012.072.
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