Distribution and significance of myocardial hyperintensity on T2-weighted MRI of hypertrophic cardiomyopathy

We sought to evaluate the distribution and significance of myocardial hyperintensity on T2-weighted imaging (T2-HI) in patients with asymmetrical septal HCM (ASH). On third of T2-HI was outside late gadolinium enhancement, and the presence of T2-HI was significantly related to unexpected syncope. T2-HI had longer T2 values than remote myocardium of ASH and normal myocardium on T2 mapping. T2-weighted MRI should be interpreted carefully to identify T2-HI related syncope in ASH patients.

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