1. A method for estimating at least one of a cerebrovascular resistance, an intracranial pressure, and a cerebrovascular compliance based at least in part on estimating parameters and variables of a computational model, comprising: a processor receiving arterial blood pressure measurements; the processor receiving at least one of cerebral blood flow measurements and cerebral blood flow velocity measurements; and the processor computing an estimate of at least one of the cerebrovascular resistance, the intracranial pressure, and the cerebrovascular compliance based at least in part on estimating the parameters and the variables of the computational model and the received measurements, the computational model representing the physiological relationships among cerebrovascular flows and pressures, the computational model including at least one resistive element and at least one compliance element and a representation of the intracranial pressure.