Figure 2:

Receiver operation characteristics curves of both transthoracic echocardiography and transoesophageal echocardiography (A), transthoracic echocardiography only (B) and transoesophageal echocardiography only (C) for their predictive value of diagnosing a cardiac tamponade after cardiac surgery (area under the curve and P-values are reported in Table 2).