期刊
ACADEMIC RADIOLOGY
卷 29, 期 -, 页码 S33-S39出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.acra.2021.01.009
关键词
CMR; Takotsubo syndrome; Myocarditis; T1 mapping; T2 mapping; Myocardial strain
This study aimed to differentiate between Takotsubo syndrome (TS) and acute myocarditis (AM) using cardiac magnetic resonance imaging coupled with tissue-tracking technique (CMR-TT) and parametric mappings analysis. The results showed that basal radial strain (RS) and apical tissue mapping analysis were the most effective CMR-derived parameters in distinguishing between TS and AM.
Rationale and Objective: Takotsubo syndrome (TS) is a transient and often misdiagnosed form of left ventricular dysfunction. Acute myocarditis (AM) is usually included in TS differential diagnosis. The aim of this study is to assess the role of cardiac magnetic resonance imaging coupled with tissue-tracking technique (CMR-TT) and parametric mappings analysis in discriminating between TS and AM. Materials and Methods: We retrospectively enrolled three groups: patients with TS (n = 12), patients with AM (n = 14), and 10 healthy controls. All the patients had a comprehensive CMR examination, including the assessment of global and segmental longitudinal strain, circumferential strain, radial strain (RS), and parametric mapping. Results: The analysis of variance was used to compare the different groups. In TS patients, basal RS, global T1 mapping, global T2 mapping, mid T2 mapping, apical T1 and T2 mapping were statistically significantly different compared with the other groups. MANCOVA analysis confirmed that the association between myocardial strain data and parametric mapping was independent on age and sex. Apical T1 and T2 mapping proved to have a good performance in differentiating TS from AM (area under the curves of 0.908 and 0.879, respectively). Conclusion: Basal RS and apical tissue mapping analysis are the most advanced CMR-derived parameters in making a differential diagnosis between TS and AM.
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