Perihemorheology rather than parahemorheology.

However, the use of the term parahemorheology has been criticized, because the prefix para implies that the rheology of fluids and structures in the perivascular spaces is secondary and less important than that of the vessel-blood organ. It is also imprecise, once it does not refer to the fluids and structures being considered. By contrast, the term perihemorheology implies the rheology of fluids and structures in the perivascular spaces, because the Greek prefix peri means around, encircling, or surrounding.