CTICasesLeft Ventricular Non-Compaction
Imaging findings
Cardiac MRI shows a thickened, non-compacted myocardium layer with prominent trabeculations and deep intertrabecular recesses in the left ventricular apex and free wall, demonstrating a non-compacted to compacted myocardial thickness ratio greater than 2.3 in diastole.
Key takeaways
Left ventricular non-compaction (LVNC) is a congenital cardiomyopathy caused by arrest of normal myocardial compaction during embryonic development. It classically presents with a spongiform appearance of the LV apex. MRI is highly specific for diagnosing LVNC and assessing associated systolic dysfunction.
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