J 2013

Speckle tracking echocardiography derived systolic longitudinal strain is better than rest single photon emission tomography perfusion imaging for nonviable myocardium identification

HUTYRA, Martin; Tomas SKALA; Milan KAMÍNEK; David HORAK; Martin KÖCHER et al.

Základní údaje

Originální název

Speckle tracking echocardiography derived systolic longitudinal strain is better than rest single photon emission tomography perfusion imaging for nonviable myocardium identification

Autoři

HUTYRA, Martin; Tomas SKALA; Milan KAMÍNEK; David HORAK; Martin KÖCHER; Zbynek TUDOS; Jiří JARKOVSKÝ ORCID; Jan PŘEČEK a Miloš TÁBORSKÝ

Vydání

Biomedical Papers of the Faculty of Medicine of Palacký University, Olomouc, Czech Republic, Olomouc, Palacký University, 2013, 1213-8118

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30201 Cardiac and Cardiovascular systems

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.661

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/13:00068290

Organizační jednotka

Lékařská fakulta

Klíčová slova anglicky

myocardial viability; speckle tracking echocardiography; two-dimensional strain; rest myocardial perfusion imaging; cardiac magnetic resonance imaging; delayed enhancement

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 9. 8. 2013 16:18, Ing. Mgr. Věra Pospíšilíková

Anotace

V originále

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.