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Cardiac- and respiratory-driven CSF displacements, which are similar to Fig. 6 but calculated while compensating for the velocity energy leaking from the selected bandwidth. There were significant differences between the cardiac- and respiratory-driven CSF displacements in the cranial and caudal directions (P < 0.01). CSF, cerebrospinal fluid; dia, diastole; exh, exhalation; inh, inhalation; sys, systole.
