From the *Creighton University School of Medicine; and †Department of Radiology, St. Joseph's Hospital and Medical Center, Phoenix, AZ.
Clin Nucl Med. 2017 Dec;42(12):983-984. doi: 10.1097/RLU.0000000000001866.
A 55-year old woman presented in an obtunded state and was found to have a subarachnoid hemorrhage. After endovascular repair, her condition deteriorated, and brain death was suspected. A Tc bicisate brain blood flow study was performed, which showed a complete absence of blood flow to the cerebellum despite intact circulation to the cerebral hemispheres. These atypical findings are likely a result of a transient intracranial pressure differential and the timing of the study. A timely and accurate declaration of brain death has important psychosocial and ethical implications, particularly when organ donation is being considered.
一位 55 岁女性以昏迷状态就诊，被发现患有蛛网膜下腔出血。血管内修复后，她的病情恶化，疑似脑死亡。进行了 Tc 双半胱氨酸脑血流研究，显示尽管大脑半球循环完整，但小脑血流完全缺失。这些非典型发现可能是由于短暂的颅内压力差异和研究时机所致。及时准确地宣布脑死亡具有重要的心理社会和伦理意义，特别是在考虑器官捐赠时。
