FIG 1. Spin-echo MR image (2600/20/1 [TR/TE/excitations]) of a 1.5-cm-thick coronal slice from the frontal region of the brain. Only the left hemisphere is shown. The open arrows indicate an area of leukoaraiosis (white matter hyperintensity) that corresponds to the area that was investigated for apoptosis (see fig 2). C, cortex of the sulcus identified in fig 2