妊高症致可逆性后部白质脑病CT诊断

目的探讨妊高症所致可逆性后部白质脑病CT影像特征及诊断价值。方法收集20例妊高症患者,均行颅脑CT扫描,并均予复查。结果 20例妊高症患者均表现为颅内多发低密度损伤区,以顶枕叶白质和皮质下区为主要好发部位,可累及额叶、基底节区和丘脑,颞叶少见,7～10d复查,病灶大部分明显吸收,15～20d复查,病灶均消失。结论本病的颅脑CT影像学表现为水肿所致,常累及双侧顶枕叶的皮质下白质,具有特征性和可逆性。

CT Diagnosis of Posterior Reversible Leukoencephalopathy Caused by Pregnancy-induced Hypertention

Objective To explore the CT features and diagnosis value of posterior reversible leukoencephalopathy （PRL）caused by pregnancy-induced hypertension （PIH）. Methods The collection, CT scan and re-examination of 20 cases of PIH were carried out. Results All the 20 cases manifested as multiple intracranial low density lesions,the major involved areas were the medulla of parietal,occipital lobes and the sub-cortical region,sometimes the frontier lohes,the basal ganglia regions and the thalamus were also involved, and however,the temporal lobes were rarely affected. The reexamination was conducted 7 to 10 days,showlng the absorption of most of the lesions,and 15 to 20 days later,all lesions disappeared. Conclusion The CT features show the disease is caused by edema,the sub-cortical medulla of the parietal and occipital lobes of both sides are often involved,which has diagnosis value and is reversible.