A:Left coronary angiography demonstrating a proximal occlusion of the left anterior descending artery (arrow).B:Two-dimensional TTE, apical four-chamber view, showing a small chamber with isoechoic band in the apex (Arrow); C: Doppler echocardiography, apical four-chamber view, revealing small amount of dotted blood flow signal in the small chamber; D:3-D TTE, apical four-chamber view, showing the chamber in the apex (arrow). E: TTE, apical four-chamber view, with ultrasound contrast showing no contrast agends entering the small chamber ( arrow). F-G: CMRI, two-chamber view, showed a slightly short T1 (F) and long T2 (G) abnormal signal in apx; H: Magnetic resonance first pass perfusion imaging revealed no enhancement in the abnormal signal (Arrow).