An evaluation of the time dependence of the anisotropy of the water diffusion tensor in acute human ischemia.

摘要: We have performed MRI examinations to determine the water diffusion tensor in brain of six patients who were admitted hospital within 12 h after onset cerebral ischemic symptoms. The been carried out immediately admission, and thereafter at varying intervals up 90 days post admission. Maps trace tensor, fractional anisotropy lattice index, as well maps blood perfusion parameters, generated quantitatively assess character infarcted area. In with significant deficits substantial lesion volume changes, four cases, our measurements show a monotonic decrease function time. propose that retrospective analysis this quantity, combination tissue segmentation maps, may be used future studies severity event.