書誌事項
- タイトル別名
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- Evaluation of lesions of the intracerebral vasculature by three-dimensional CT angiography.
抄録
In this report, we describe our initial experience with three-dimensional CT angiography (3D-CTA) in the evaluation of intracerebral lesions. The purpose of the study was to assess the detection of lesions of the intracranial vasculature by 3D-CTA and to compare the results obtained with those of both digital subtraction angiography (DSA) and magnetic resonance angiography (MRA). Six patients including 4 with intracranial aneurysms and 2 with stenosis of the vertebral artery and basilar artery were investigated with 3D-CTA and DSA, and also underwent MRA. 3D-CTA is a rapid non-invasive method for visualizing the intracranial vasculature. In this study, aneurysms measuring 3 mm or larger were demonstrated by 3D-CTA as well as MRA. All of the aneurysms observed with both 3D-CTA and MRA were seen equally well by both techniques. 3D-CTA has several properties that afford it unadvantage over MRA. 3D-CTA acquistion takes only 20 sec to perform, so that lesions can be imaged without motion artifacts. The 3D-CTA image reflects the volume of contrast material in a structure and is independent of flow rate. Cases with either larger aneurysms or stenosis were seen better with 3D-CTA, owing to the development of flow-related or motion artifacts on MRA. On the other hand, MRA was considered to be superior to 3D-CTA in some cases, in which calcium in the vessel wall or skull base obscured the anatomy of the aneurysms on images obtained by 3D-CTA represents a promising non-invasive method is concluded that 3D-CTA represents a promising non-invasive method for imaging the intracranial vasculature and is comperable with MRA techniques in demonstrating intracranial lesions.
収録刊行物
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- 脳卒中
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脳卒中 17 (5), 410-417, 1995
一般社団法人 日本脳卒中学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390282679614544128
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- NII論文ID
- 130003631188
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- ISSN
- 18831923
- 09120726
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可