sixteen patients with stroke , five patients with permanent regressive ischemic neurologic deficit , and three patients with transient ischemic attacks were studied by single photon emission computed tomography performed within the first hour ( early scan ) and four hours ( delayed scan ) after injection of n-isopropyl-p-iodoamphetamine-iodine-123 ( imp ) .
C0038454
stroke
C0007787
transient ischemic attacks