Fig. 6.

Representative echocardiographic images of cardiac tamponade. A: diastolic collapse of the free wall of the right atrium from late diastole to early systole is observed on the apical 4 chamber view (middle) and magnified view (right), compared with the image of early diastole (left). B: collapse of the right ventricle in early diastole is observed on the parasternal long axis view (middle) and M-mode (right), compared with the image of systole (left). C: marked respiratory variation is observed on the transmitral (left) and transtricuspid (right) Doppler flow. RA: right atrium, RV: right ventricle, LV: left ventricle, MV: mitral valve, TV: tricuspid valve.