Comparison of Displacement Encoding With Stimulated Echoes to Magnetic Resonance Feature Tracking for the Assessment of Myocardial Strain in Patients With Acute Myocardial Infarction - 27/09/17
, Shinichi Takase, AS a, Andreas Sigfridsson, PhD b, Mio Uno, MD a, Motonori Nagata, MD a, Yasutaka Ichikawa, MD a, Kakuya Kitagawa, MD a, Hajime Sakuma, MD aAbstract |
The aim of this study was to compare myocardial strain by cardiovascular magnetic resonance feature tracking (CMR-FT) to those derived from displacement encoding with stimulated echoes (DENSE) in patients with acute myocardial infarction (AMI). Twenty patients (65 pa13 years) with AMI underwent cine, DENSE, black-blood T2-weighted and late gadolinium enhancement CMR at 1.5 T. Global and segmental strain was determined by CMR-FT analysis and DENSE on matched 3 short-axis planes. Global circumferential strain by CMR-FT showed a good agreement with that by DENSE (r = 0.85, p <0.001; bias 0.02, limits of agreement −0.03 to 0.06). For segmental circumferential strain, r coefficient between CMR-FT and DENSE was 0.61 (p <0.001) with bias of 0.02, limits of agreement of −0.07 to 0.11. Regional circumferential strain determined by CMR-FT in infarct segments (−0.08 ± 0.05) was significantly altered compared with that in remote normal segments (−0.15 ± 0.05, p <0.001). CMR-FT measurement of regional and global circumferential strain showed good agreement with DENSE in patients with AMI.
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| Funding: This work was supported by grant 23591762 from the JSPS KAKENHI (Tokyo, Japan). |
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| See page 1546 for disclosure information. |
Vol 119 - N° 10
P. 1542-1547 - mai 2017 Retour au numéro
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