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KMID : 0352119890050030361
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Journal of Kyung Hee University
1989 Volume.5 No. 3 p.361 ~ p.366
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RADIOLOGICAL EVALUATION OF INTRACRANIAL ANEURYSM
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Abstract
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The majority of intracranial aneurysms occur at the anterior communicating artery (ACOM), the origin of the posterior communicating artery (PCOM), and the first branching of the proximal middle cerebral artery (MCA). But there is a relatively high incidence of intracranial aneurysms arising from unusual locations and multiple aneurysms.
Authors analyzed 367 cases of the intracranial aneurysms of 318 patients on angiography during 1984. 1. -1988. 4., retrospectively.
The results were as follows;
1) The incidence of common sites of aneurysm is in 292 cases (79.6%); in order of frequency, anterior communicating artery (MCOM) in 130 cases (35.4%), middle cerebral artery (MCA) in 86 cases (23.4%), posterior communicating artery (PCOM) in 76 cases (20.7%).
2) In 75 out of 367 cases (20.4%), unusual location of aneurysms were found. Of these, proximal internal carotid artery (PICA) aneurysm were most common in 28 cases (7.6%), followed by tip of the basilar artery (BA) in 16 cases (4.40), anterior choroidal artery (AChA) in 7 cases (3.0%), distal anterior cerebral artery (DACA) in 7 cases (1.90), ophthalmic artery in 7 cases (1.9%), superior cerebellar artery (SCA) in 2 cases (0.5%), posterior inferior cerebellar artery (PICA) in 2 cases (0.5%), anterior inferior cerebellar artery (AICA) in 1 case (0.3%), poterior cerebral artery (PCA) in 1 case (0.3%), in order of frequency.
3) In 37 out of 318 patients (11.6%), multiple intracranial aneurysms wre demonstrated at angiography.
The recognition of these unusual locations and mutiplicity of intracranial aneurysm would be further improved the detection and diagnosis of the intracranial aneurysm.
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KEYWORD
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