A computer-based method for continuous single pulse analysis of intracranial pressure waves

A new method for processing of continuous intracranial pressure signals

“…Computerassisted determinations of pulse pressure as difference between systolic maximum and diastolic minimum pressures have been reported, although without criteria for correct systolic maximum and diastolic minimum pressure detections [13,24]. On the other hand, analyzing single ICP waves by spectral analysis using FFT [10,[17][18][19][20][21] does not include identification of single ICP wave systolic maximum or diastolic minimum pressure values.…”

Cerebrospinal Fluid Pressure in the Anesthetized Rat

“…16,17 However, these waves have also been described in artificially ventilated patients and in healthy volunteers, and so cannot be causally attributed solely to pathologic respiratory rhythms. 17,18 Because of the superimposition of nonharmonic rhythms, including those associated with the respiratory and cardiac cycles, any given oscillation in intracranial pressure is likely to have a complex waveform, 19 and it may be difficult to recognize component CSF pressure waves without mathematical processing of the raw signal (see, eg, 20,21 ). Hence, in this study, we used power spectrum analysis to search for component waves within the CSF oscillations.…”

Morphological Clustering and Analysis of Continuous Intracranial Pressure

“…These methods have not been widely adopted in practice and have not been tested using long-term ICP from modern monitoring devices. Computer software, described in a 1995 report [28], appeared to be capable of analyzing single ICP pulse in terms of extracting maxim, minimum, average, amplitude and pulse gradient. However, no description of the methodology was presented.…”