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Abstract #4461

Intravoxel Incoherent Motion Diffusion Weighted MR Imaging to Evaluate Myocardial Microvascular Dysfunction of Exertional Heat Illness

Zhang Jun1, Luo Song1, and Dou Weiqiang2
12. Department of Radiology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China, 24. MR Research, GE Healthcare, Beijing, China

Synopsis

Keywords: Heart, Myocardium

Purpose: To investigate the feasibility of assessing myocardial microvascular perfusion of patients with exertional heat illness (EHI) by intravoxel incoherent motion imaging.

Methods: CMR-IVIM image quality was evaluated with a 3-point scale. CMR-IVIM derived parameters were analyzed and compared between EHI and HC. Receiver operating characteristic curve was used.

Results: CMR-IVIM image quality were significantly improved. EHI patients showed decreased D*, decreased f values and higher D values compared to HC. f showed the most robust efficacy for detecting EHI related myocardial injury with the highest area under the curve.

Conclusion: CMR-IVIM can evaluate myocardial injury of EHI patients.

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Keywords