Fig. (9) This patient showed left parietal hemorrhagic damage evident at CT scan immediately after SAH: the courses of N20 and 1/vMCA ratios were divergent and did not correlate (p = 0.89), since N20 had pathologic amplitude < 1.2 ┬ÁV at point 1 and 2 and disappeared in subsequent examinations, whereas 1/vMCA was always almost symmetric on hemispheres. The patient never had vasospasm and clinical stable hemiparesis was evident.