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Quantitative Evaluation of Myocardial Strain After Myocardial Infarction with Cardiovascular Magnetic Resonance Tissue-Tracking Imaging
- Source :
- International Heart Journal. 61:429-436
- Publication Year :
- 2020
- Publisher :
- International Heart Journal (Japanese Heart Journal), 2020.
-
Abstract
- To investigate the value of cardiovascular magnetic resonance tissue-tracking (CMR-TT) imaging in the differentiation of subendocardial and transmural myocardial infarction (MI) and determine whether strain parameters are enable to detect adverse left ventricular (LV) remodeling.Global peak circumferential, longitudinal, and radial strains (GPCS, GPLS, GPRS) and segmental peak circumferential, longitudinal, and radial strains (PCS, PLS, PRS) in accordance with the 16-segment model were all derived. All positive segments were divided into two groups according to transmural degree. All patients were dichotomized in accordance with the existence of LV remodeling, which was defined as infarct size (IS) > 24%.Patients with MI showed significant lower GPRS, GPCS, and GPLS than the control group (16.41% ± 8.92%, -8.77%± 3.51%, -7.54% ± 2.43% versus 32.41% ± 12.99%, -14.92% ± 3.32%, -11.50% ± 2.51%). Lower PRS [3.25% (-5.57, 7.835) versus 19.94% (12.50, 30.75), P < 0.001] and PCS (-3.81 ± 4.60% versus -8.97± 4.43%, P < 0.001) can be found in transmural infarcted segments compared to subendocardial infarcted segments. PLS between transmural and subendocardial infarcted segments (-4.03% ± 4.88% versus -4.34% ± 4.98%), without however statistical significance (P = 0.523). The optimal cutoff value for PRS in the discriminate diagnosis of MI was 8.97% with a sensitivity of 81.8% and specificity of 98.0%. The optimal cutoff value for PCS was -7.56% with a sensitivity of 83.6% and specificity of 72.1%. Receiver operating characteristic (ROC) analysis revealed an optimal cutoff GPRS of 15.45%, and GPCS of -6.72% yielded high diagnostic accuracy in the identification of remodeling, which was higher than left ventricular ejection fraction (LVEF).CMR-TT can differentiate between subendocardial and transmural infarction and detect LV remodeling, and the diagnostic value was superior to conventional functional parameters.
- Subjects :
- Adult
Male
Tissue tracking
medicine.medical_specialty
Myocardial Infarction
Diagnostic accuracy
030204 cardiovascular system & hematology
03 medical and health sciences
0302 clinical medicine
Internal medicine
Statistical significance
medicine
Humans
030212 general & internal medicine
Myocardial infarction
Aged
Retrospective Studies
Ejection fraction
Ventricular Remodeling
medicine.diagnostic_test
Receiver operating characteristic
business.industry
Magnetic resonance imaging
General Medicine
Middle Aged
medicine.disease
Magnetic Resonance Imaging
Cardiac Imaging Techniques
Myocardial strain
Cardiology
Female
Cardiology and Cardiovascular Medicine
business
Subjects
Details
- ISSN :
- 13493299 and 13492365
- Volume :
- 61
- Database :
- OpenAIRE
- Journal :
- International Heart Journal
- Accession number :
- edsair.doi.dedup.....23a5e54f2d6921723e8693c48f151434