Skip to main content
. 2012 Sep 20;113(10):1560–1566. doi: 10.1152/japplphysiol.00357.2012

Fig. 4.

Fig. 4.

Qualitative ICP waveform and ASV comparison. A: scatter plot of ICP-Wi2 vs. ASV, where ICP-Wi2 represents the width of P2. The correlation is significant with a P value of 0.0025. B: the ASV for two selected patients from A. C: two example dominant ICP pulses with different mean ICPs for patient 2 (low ASV). D: two example dominant ICP pulses with different mean ICPs for patient 4 (high ASV). For C and D, the dominant pulses are plotted on separate axes, which are color coded (black waveforms correspond to the left y-axis and the gray waveforms are plotted on the right for both C and D) and are meant to compare waveform shapes between patients at equal mean ICP values. The mean ICP of the pressure pulse for each pair of dominant pulses (black and gray from C and D) are within 0.1 mmHg of each other (black = 8.3 mmHg; gray = 3.0 mmHg).