摘要
目的：探讨小脑幕切迹下疝的螺旋CT扫描行MPR（多平面重建）像观察的诊断价值.方法：分析37例小脑幕切迹下疝患者的螺旋CT扫描临床资料.结果：与斜坡垂直的冠状MPR图像可直观显示上下关系改变,显示幕上脑组织挤入幕下2～4 mm 7例,4～6 mm 18例,＞6 mm 12例;病变位于脑干侧前方3例,侧方25例,侧后方9例.脑干不同程度受压变形、移位.部分可见同侧邻近及以下环池的扩大（22例）.结论：根据螺旋CT扫描横断位提示,结合MPR图像对直接病理改变征象的观察分析,在小脑幕切迹下疝的诊断中具有重要的意义和价值,应作为诊断依据.
Objective.To evaluate the diagnostic valu using spiral CT MPR images on the herniation of the cerebellar incisura tentori. Methods. Thirty-seven patients with herniation of the cerebellar incisura tentori. diagnosed by spiral CT were analyzed. Results： On a coronal MPR images that vertical on clivus can show the brain tissue that under the tentorial incisura , 2-4mm in 5 patients, 4-6mm in 18 patients, 〉6mm in 14 patients. The lesion located lateral anterior to brain stem in 3 patients, lateral to brain stem in 25 patients, lateral posterior to brain stem in 9 patients. Basic line vertical MPR image test and verify and showed up or down tissue relationship changes. The changes of own brain stem deformity and displacement. Part patients shown near the ambient cistern enlarge in same side and above（in 22 patients）. Conclusion： Transverse image combined with coronal MPR images that vertical on clivus can show the direct sign of the herniation of the cerebellar incisura tentori. It plays an important role, and should be a essential diagnostic evidence.
出处
《中国中西医结合影像学杂志》
2006年第4期258-259,262,共3页
Chinese Imaging Journal of Integrated Traditional and Western Medicine
关键词
脑疝
小脑幕切迹
螺旋CT
Brain hernia
Cerebellar incisure tentori
