Contrast Extravasation on Computed Tomography Angiography Imitating a Basilar Artery Trunk Aneurysm in Subsequent Conventional Angiogram-Negative Subarachnoid Hemorrhage: Report of Two Cases with Different Clinical Courses
Journal of Cerebrovascular and Endovascular Neurosurgery
; : 20-26, 2015.
Article
在 En
| WPRIM
| ID: wpr-95433
Responsible library:
WPRO
ABSTRACT
Contrast extravasation on computed tomography angiography (CTA) is rare but becoming more common, with increasing use of CTA for various cerebral vascular diseases. We report on two cases of spontaneous subarachnoid hemorrhage (SAH) in which the CTA showed a saccular lesion of the upper basilar trunk suggesting a ruptured aneurysm. However, no vascular lesion was observed on immediate subsequent digital subtraction angiography (DSA). In one case, repeated follow up DSA was also negative. The patient was treated conservatively and discharged with no neurologic deficit. In the other case, the patient showed sudden mental deterioration on the third hospital day and her brain CT showed rebleeding. The immediate follow up DSA showed contrast stagnation in the vicinity of the upper basilar artery, suggestive of pseudoaneurysm. Double stent deployment at the disease segment was performed. Due to the frequent use of CTA, contrast extravasation is an increasingly common observation. Physicians should be aware that basilar artery extravasation can mimic the appearance of an aneurysm.
Key words
全文:
1
索引:
WPRIM
主要主题:
Subarachnoid Hemorrhage
/
Vascular Diseases
/
Basilar Artery
/
Brain
/
Angiography
/
Angiography, Digital Subtraction
/
Stents
/
Follow-Up Studies
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Aneurysm, Ruptured
/
Aneurysm, False
研究类型:
Observational_studies
/
Prognostic_studies
限制:
Humans
语言:
En
期刊:
Journal of Cerebrovascular and Endovascular Neurosurgery
年:
2015
类型:
Article