Chu N S
Department of Neurology, Chang Gung Medical College and Memorial Hospital, Taipei, Taiwan, R.O.C.
J Formos Med Assoc. 1993 Aug;92(8):697-701.
Although there are reports on early CT findings in the persistent vegetative state (PVS) from cerebral anoxia-ischemia, later CT changes have received little attention. CT scans were obtained from six patients who were in PVS from four months to three years. Initial CT scans showed non-specific changes of diffuse cerebral edema. Later CT findings often showed infarction in the superficial or deep border zones (five patients), low density in the basal ganglia (four patients), and infarction in the posterior cerebral artery (PGA) territory (three patients). When the survival time extended beyond eight months, there was an enormous enlargement of the hemispheric ventricles that was disproportionate to the cortical atrophy. The data indicate that border zone and PCA territory infarctions are common in PVS. A progressive, and eventually significant loss of the cerebral mass seems to occur in long-term survivors.
虽然有关于脑缺氧缺血所致持续性植物状态（PVS）早期CT表现的报道，但后期CT变化却很少受到关注。对6例处于PVS状态4个月至3年的患者进行了CT扫描。最初的CT扫描显示弥漫性脑水肿的非特异性改变。后期CT表现常显示浅表或深部边缘区梗死（5例）、基底节区低密度影（4例）以及大脑后动脉（PCA）供血区梗死（3例）。当生存时间超过8个月时，半球脑室会出现不成比例的巨大扩大，与皮质萎缩程度不相称。数据表明，边缘区和PCA供血区梗死在PVS中很常见。长期存活者似乎会出现渐进性且最终显著的脑实质丢失。
