Figure 5.

CMR in myocarditis. CMR is particularly helpful in diagnosing immune check point related myocarditis. The revised Lake Louise Criteria include at least one T2-based criterion (increase in regional or global T2 relaxation time or increased signal intensity in T2-weighted images) and one T1-based criterion (increased native T1 values, ECV or LGE). This patient showed increased signal intensity in short tau inversion recovery (STIR) T2 images (red arrows), increased T2 mapping values (black arrows), and increased T1 and ECV values in the lateral wall with mainly subepicardial LGE in the same region (blue arrows). ECV = extracellular volume. LGE = late gadolinium enhancement.