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Table 1 Differentiation points for left ventricular dysmorphologies by TTE and ECG

From: Intraventricular muscle bundle as a novel cause of left ventricular aneurysm

 

Abnormal ventricular muscle bundle-associated ventricular aneurysm

Left ventricular diverticulum [10]

Ventricular aneurysm formation after MI [11]

Sub-chamber position

Apex or side wall

Apical or lower posterior wall, outward bulging

Apex

Wall thickness

Thin, myocardial three-layer structure disappears

Normal or thin; myocardial three-layer structure exists

Thin, myocardial three-layer structure disappears

Wall motion

Normal or reduced

Normal

Absent or outward movement

Communication between two chambers

Big or small

Small

Big

Echo of Muscular trabeculae

Normal or slightly increased

Normal

Normal

ECG

No Q wave in precordial leads

No Q wave in precordial leads

Q wave in precordial leads