Figure 2

A transaxial slice of the brain. The top left image is of a single transaxial slice acquired with an MPRAGE without parallel imaging. The top right image is the same slice post segmentation and crisp volumes of CSF, grey matter and white matter are represented by dark gray, light grey and white regions. The bottom row shows the same slice crisp volumes resulting fro segmentation of MPRAGE images acquired using iPAT acceleration factors 2 and 4 (left and right respectively).