Following are the Echocardiography criteria for the diagnosis of left ventricular non-compaction:

§ Presence of multiple echocardio-graphic trabeculations, particularly in apex and free wall of left ventricle.

§ Multiple deep intertrabecular recesses communicating with ventricular cavity, as demonstrated by colour Doppler imaging.

§ A two layered structure of the endomyocardium with a ratio of end-systolic non-compacted endocardial layer to compacted layer of >2.0 in adult or >1.4 in children.

§ Absence of other congenital or acquired heart disease, particularly those causing left ventricular outflow obstruction.