Fig. 4

Supine bicycle ergometer test with stress echocardiography. Example of stress echocardiography with a patient lying on a supine bicycle ergometer. The table is tilted towards the left, to optimize the image quality of the apical four chamber view. The probe (X5-1, Philips Medical Systems, Best, The Netherlands) is fixated with Probefix and angulated in the optimal position. See the online movie for an overview of the supine bicycle test with echocardiography using the Probefix (Additional file 2)