Mittl R L, Yousem D M
Department of Radiology, Hospital of the University of Pennsylvania, Philadelphia 19104.
AJNR Am J Neuroradiol. 1994 Apr;15(4):633-8.
To examine the hypothesis that lumbar puncture alone may cause meningeal enhancement in the brain.
We prospectively reviewed the brain MR examinations of all patients from a 6-month period who were studied within 1 month after lumbar puncture. We also retrospectively reviewed all cases of dural-arachnoidal enhancement in the brain from the preceding 18-month period.
In the prospective group, only one case out of 97 enhanced brain MR examinations after lumbar puncture did not have a clear cause for dural-arachnoidal enhancement. In the retrospective group, only one case out of 11 with enhancement was not clearly explained.
Dural-arachnoidal enhancement in the brain after lumbar puncture is uncommon, if it occurs at all, and lumbar puncture as a cause of enhancement should be considered a rare diagnosis of exclusion.
检验仅腰椎穿刺可能导致脑部脑膜强化这一假说。
我们前瞻性地回顾了在腰椎穿刺后1个月内接受研究的所有患者在6个月期间的脑部磁共振成像（MR）检查。我们还回顾性地分析了前18个月期间脑部硬脑膜-蛛网膜强化的所有病例。
在前瞻性队列中，97例腰椎穿刺后脑部MR增强检查中仅有1例硬脑膜-蛛网膜强化无明确原因。在回顾性队列中，11例有强化的病例中仅有1例原因不明。
腰椎穿刺后脑部硬脑膜-蛛网膜强化即便发生也不常见，腰椎穿刺作为强化原因应被视为一种罕见的排除性诊断。
