Virus-Negative Active Lymphocytic Myocarditis Progressing to a Fibrotic Stage
Figure 3
T2-weighted short inversion-time, inversion-recovery (STIR) breath hold pulse sequences ((a) and (b)) showing concentric thickening and oedema of the right ventricle. The infiltration (asterisk) extends around the root of the pulmonary artery. Four-chamber SSFP cine view (c) showing infiltration of the right ventricle (arrow), right atrium (empty arrow), interatrial septum (empty arrowhead), and basal to mid interventricular septum (arrowhead). Four-chamber first-pass T1-weighted multishot gradient-echo echo-planar sequence (d) shows partial hyperenhancement (arrow) of the right ventricle in support of an inflammatory process. Four-chamber (e) and short-axis (f) three-dimensional phase-sensitive inversion recovery sequences demonstrating widespread and heterogeneous enhancement (#) of the right atrium and ventricle. RA indicates right atrium; LA, left atrium; RV, right ventricle; LV, left ventricle; PV, pulmonary valve.
