FIG 4. Serial changes in cortical rCBF in a case with DIND.

Top left, Six days after the onset of SAH, 3D images show multiple, patchy areas of decreased cortical rCBF.

Top right, cerebral angiography performed on the same day reveals no angiographic vasospasm.

Bottom left, Ten days after the onset of SAH, 3D images show the widely decreased cortical rCBF.

Bottom right, Diffuse angiographic vasospasm is seen on an cerebral angiogram obtained on the same day.