Spetzger U, Thron A, Gilsbach J M
Department of Neurosurgery, University of Technology, Aachen, Germany.
J Comput Assist Tomogr. 1998 Jan-Feb;22(1):120-5. doi: 10.1097/00004728-199801000-00022.
Our goal was to evaluate the immediate postoperative contrast enhancement behavior of cerebral lesions and to gain further information about contrast enhancement in patients under general anesthesia.
In the early postoperative period, CT scans with the without contrast medium were performed in 46 patients. The time interval between surgery and postoperative CT imaging ranged from 1 to 7.5 h (mean 4 h). Nineteen patients were under general anesthesia during CT investigation.
In the early postoperative period, contrast medium leakage into the tumor resection cavity was noted In 14 patients (30%). Another phenomenon that was observed was the appearance of a strong demarcation and distinct contrast of gray against white matter in 24 patients (52%). This characteristic, global contrast enhancement of the cerebral cortex, occurred in 17 of 19 patients (89%) investigated under general anesthesia.
In immediate postoperative CT scans, contrast medium leakage due to extravasation of contrast medium into the tumor resection cavity can be detected early. Moreover, a global contrast enhancement of the cerebral cortex can be detected as a frequent pattern in patients investigated under general anesthesia.
我们的目标是评估脑损伤术后即刻的对比增强行为，并获取有关全身麻醉患者对比增强的更多信息。
在术后早期，对46例患者进行了有无造影剂的CT扫描。手术与术后CT成像之间的时间间隔为1至7.5小时（平均4小时）。19例患者在CT检查期间接受全身麻醉。
在术后早期，14例患者（30%）出现造影剂漏入肿瘤切除腔。观察到的另一个现象是24例患者（52%）出现强烈的分界以及灰质与白质的明显对比。这种大脑皮质的特征性整体对比增强出现在19例接受全身麻醉检查的患者中的17例（89%）。
在术后即刻CT扫描中，可以早期检测到由于造影剂外渗进入肿瘤切除腔而导致的造影剂漏出。此外，在接受全身麻醉检查的患者中，大脑皮质的整体对比增强是一种常见模式，可以被检测到。
