Even excluding the RV insertion point pattern, the presence of LGE remains higher than in the published literature (45%), and approaches statistical significance ( p = 0.051), although this should be corroborated in other studies due to the small sample size.
23%, p = 0.056) did not reach statistical significance and should be interpreted cautiously given the small ACM sample; nevertheless, the biological plausibility is supported by the recognized hemodynamic sensitivity of the interventricular junction in states of sustained volume and pressure overload [ 8 ], and this observation warrants evaluation in larger cohorts.
When the RV-IP pattern was excluded, 9/20 ACM patients (45%) had LGE excluding the isolated RV-IP pattern, compared to 29/128 (22.7%) idiopathic DCM patients ( p = 0.051, borderline non-significant but with a trend to a higher fibrosis burden in the ACM group).