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篇名 |
Supplementary Use of Computed Tomographic Angiography in Subarachnoid Hemorrhage with Negative Digital SubtractionAngiography: Report of a Case |
作者 |
Ming-Jr Tsai, Chih-Peng Wei, Ming-Cheng Tsai |
卷期/出版年月 |
39卷5期 (2006/10) |
頁次 |
265-269 |
摘要 |
With advances of resolution and re-combination techniques in computed tomography
(CT), CT angiography (CTA) has frequently been employed to detect intracranial
aneurysms. Its advantages, such as being non-invasive and time efficient, as well as
the high resolution and 3-dimensional images obtained, have made it the preferred
choice for screening patients at high-risk for intracranial aneurysms. Here we report
the case of a 57-year-old man whose initial digital subtraction angiography (DSA) was
negative. However, a follow-up CTA revealed a neck of intracranial aneurysm on the
anterior communicating artery 48 hours later. This aneurysm was clipped
successfully through the left sub-frontal approach and the patient made a good
recovery following the surgery. In this case, a DSA-missed aneurysm was picked up
by CTA and a catastrophe was prevented. We have thus shown DSA-negative pictures
in CTA-positive subarachnoid hemorrhage, and the reason for this unusual image
presentation was probably intra-aneurysmal thrombosis, which was confirmed by surgery. |
關鍵詞 |
Intracranial aneurysm, computed tomography angiography,angiographically occult aneurysm, subarachnoid hemorrhage |
分類 |
Case Report |
|