BSSFP distinguishes the non-compacted trabeculation (NC) from compacted myocardium (C), however the current diagnostic criterion (NC/C>2.3) for left ventricular non-compaction (LVNC) suffers from subjective variability and tends to over-diagnose, especially in pediatric patients where LV trabeculation varies on a continuous spectrum. Numerical simulations estimate exponential relationship between fractal dimension (FD) and perimetric ratio (PR) with 11 times higher dynamic range for PR for the observed FD range in 30 LVNC positive and 20 negative controls. Both FD and PR indices distinguish LVNC positive from negative (p<0.0001), while the PR and FD*PR provided 6 and 11 times higher dynamic ranges respectively.
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