Fig. 1From: Estimation of central arterial pressure from the radial artery in patients undergoing invasive neuroradiological proceduresThe central and the peripheral arterial waveforms were displayed on two main monitors (Siemens, SC 9000) (1 = central, 2 = peripheral). PRAM software was installed on a laptop (3) that was connected to both Siemens monitors to simultaneously record the aortic and radial pressure waves for 90–180 s. The PRAM screen (4) shows the simultaneous recordings of radial (top) and aortic (bottom) pressure waves in one of the patients enrolled in the studyBack to article page