Myocarditis

Lake Louise Criteria 2009

Need 2 out of 3

1. Normalized T2 2. Normalized T1 (Early Gadolinium Enhancement 3 minutes post)

SI_myo/SI_skel SI_myoPost - SI_myoPre / SI_myoPre SI_myoPost - SI_myoPre / SI_myPre x 100%

_{___________________________________ OR}

SI_skelPost - SI_skelPre / SI_skelPre

< 1.9 Normal < 4.0 (GE), < 5.0 (Siemens) Normal > 45% Myocarditis

3. LGE, non ischemic pattern.