PRx and Fisher-transformed Pearson correlation
derek.merck@ufl.edu">Derek Merck
University of Florida
Spring, 2020
A Fisher-transformed rolling Pearson correlation is useful for computing the cerebral pressure reactivity index (PRx) from intracranial pressure (ICP) and mean arterial pressure (MAP) values. PRx provides an index of patient cerebral pressure autoregulation after traumatic brain injury.
Steiner, Luzius A., Marek Czosnyka, Stefan K. Piechnik, Piotr Smielewski, Doris Chatfield, David K. Menon, and John D. Pickard. “Continuous Monitoring of Cerebrovascular Pressure Reactivity Allows Determination of Optimal Cerebral Perfusion Pressure in Patients with Traumatic Brain Injury.” Critical Care Medicine 30, no. 4 (April 2002): 733–38. https://doi.org/10.1097/00003246-200204000-00002.