Diagnostic imaging criteria for AC from the Modified Task
Force Criteria from 2010
Global or regional dysfunction and structural alterations
| Minor |
| 2D echocardiography criteria |
| Regional RV akinesia or dyskinesia and 1 of the following measured at end diastole |
| PLAX RVOT ≥29 to <32 mm |
| PSAX RVOT ≥32 to <36 |
| RV fractional area change >33% to ≤40% |
| CMR criteria |
| Regional RV akinesia or dyskinesia or dyssynchronous RV contraction and 1 of the following |
| Ratio of RV end-diastolic volume to BSA ≥100 to <110 mL/m2 (men) or ≥90 to <100 mL/m2 (women) |
| RV ejection fraction >40 to ≤45% |
Abbreviations:
AC, arrhythmogenic cardiomyopathy
BSA, body surface area
CMR, cardiac magnetic resonance imaging
PLAX RVOT, parasternal long axis right ventricular outflow tract
PSAX RVOT, parasternal short axis right ventricular outflow tract
RV, right ventricle