- 期刊
Radionuclide Cisternography in Diagnosing Spontaneous Intracranial Hypotension
放射性核種腦池造影在診斷自發性顱內低壓
摘要
自發性顱內低壓一般被認為是脊髓膜憩室或囊腫破裂後，導致腦脊椎液外漏所引起。本病例為一位31歲男性，最近2個月有反覆發作之頭痛，於立姿時加重，平躺時緩解，並且有愈來愈嚴重的趨勢，該頭育並無特殊原因可回溯。核磁共振造影顯示硬腦膜訊號加強，伴隨硬腦膜下積液與輕微小腦扁桃體疝脫，懷疑為顱內低壓。鎝-99m-DTPA放射性核種腦池造影發現於給藥15分鐘後，中段胸脊椎兩側就可見多處同位素活性不正常的增加；早期膀胱顯影；而且直到24小時，大腦半球仍未顯示任何同位素活性。因為鎝-99m-DTPA放射性核種腦池造影之發現證實了自發性顱內低壓的診斷。
並列摘要
It has been postulated that spontaneous intracranial hypotension is caused by the rupture of spinal meningeal diverticuli or cysts that resulting in cerebrospinal spinal fluid leakage. We present a case of 31-year-old man who suffered a 2-month history of worsening headache in the upright posture, which was ameliorated completely when recumbent. No clear precipitant could be identified. Brain MRI, revealing increased dural enhancement associated with subdural collections and mild tonsilar herniation, suggested a suspicion of intracranial hypotension. Radionuclide cisternography with (superscript 99m)Tc-DTPA confirmed the diagnosis by demonstrating multiple focal areas of increased tracer activity appeared along both sides of paraspinal area at mid thoracic level in the image at 15min, early appearance of bladder, and lack of activity over cerebral hemispheres up to 24h.
延伸閱讀
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