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- Title
Two-Dimensional Speckle Tracking Echocardiography for the Prediction of Reversible Myocardial Dysfunction after Acute Myocardial Infarction: Comparison with Magnetic Resonance Imaging.
- Authors
Orii, Makoto; Hirata, Kumiko; Tanimoto, Takashi; Shiono, Yasutsugu; Shimamura, Kunihiro; Ishibashi, Kohei; Yamano, Takashi; Ino, Yasushi; Kitabata, Hironori; Yamaguchi, Tomoyuki; Kubo, Takashi; Imanishi, Toshio; Akasaka, Takashi
- Abstract
Background We aimed to determine the predictive value of longitudinal, circumferential, and radial strains by two-dimensional speckle tracking echocardiography ( 2DSTE) for improvement in cardiac function after acute myocardial infarction ( AMI) compared with that of contrast-enhanced cardiac magnetic resonance imaging (ce MRI). Methods In 35 patients with first-time AMI, myocardial viability was assessed to predict recovery of function at follow-up (7 ± 2 months), prospectively. For each left ventricular segment, each peak strains were determined using 2DSTE, and the relative extent of hyperenhancement was assessed using ce MRI. Results Of 176 segments with impaired function early after AMI, 99 segments showed regional recovery. Compared with segments showing functional improvement, those that failed to recover had lower peak radial (20 ± 16% vs. 32 ± 21%; P < 0.001), circumferential (−10 ± 5% vs. −20 ± 6%; P < 0.001), and longitudinal (−10 ± 5% vs. −14 ± 5%; P < 0.001) strain and a greater extent of hyperenhancement (71 ± 22% vs. 27 ± 20%; P < 0.001). Among strain parameters, circumferential strain yielded greater area under the curve ( AUC; 0.899) than radial and longitudinal strain (0.682 and 0.718, respectively). The predictive value of circumferential strain (sensitivity 81.0%, specificity 79.6%, at a cutoff value of −14.3%) could be comparable to that of hyperenhancement (sensitivity 86.2%, specificity 83.9%, AUC 0.921, at a cutoff value of 47%) (P = 0.439). Conclusion Circumferential strain can identify reversible myocardial dysfunction after AMI with a diagnostic ability comparable to that of ce MRI.
- Subjects
COMPARATIVE studies; STATISTICAL correlation; DOPPLER echocardiography; MAGNETIC resonance imaging; MYOCARDIAL infarction; MYOCARDIAL reperfusion; RESEARCH evaluation; STATISTICS; T-test (Statistics); DATA analysis; PREDICTIVE tests; INTER-observer reliability; RECEIVER operating characteristic curves; DATA analysis software; DESCRIPTIVE statistics
- Publication
Echocardiography, 2015, Vol 32, Issue 5, p768
- ISSN
0742-2822
- Publication type
Article
- DOI
10.1111/echo.12726