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. 2021 Jun 8;8:661673. doi: 10.3389/fcvm.2021.661673

Figure 5.

Figure 5

A 73-year-old female with focal midseptum hypertrophic cardiomyopathy. (A–C) Native T1 mapping of the apical, mid-, and basal portions of the left ventricular (LV) myocardium showed increased global native T1 (1,335.03 ms). (D–F) Extracellular volume fraction (ECV) of the apical, mid-, and basal portions of the LV myocardium showed normal global ECV (26.9%). (G–I) Late gadolinium enhancement (LGE) images of the apical, mid-, and basal portions of the LV myocardium showed no LGE. The maximal LV wall thickness was 19.8 mm, left atrial diameter was 40 mm, and the LV outflow tract gradient pressure was 95 mmHg. She had no family history of sudden cardiac death (SCD), non-sustained ventricular tachycardia, unexplained syncope, LGE/LV mass ≥15%, end-stage systolic dysfunction, and apical aneurysm. She was stratified as having low SCD risk under the 2014 European Society of Cardiology guidelines (5-year SCD probability: 1.70%) and enhanced American College of Cardiology/American Heart Association guidelines. However, she underwent cardiac-caused death 26 months after cardiac MRI examination. The elevated global native T1 mapping values could help indicate poor outcome in patients with low risk according to the two guidelines.