Evaluation of lesions of the intracerebral vasculature by three-dimensional CT angiography.
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- Arai Yasumichi
- Department of Internal Medicine, Ashiaka Red Cross Hospital
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- Komatsumoto Satoru
- Department of Internal Medicine, Ashiaka Red Cross Hospital
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- Nara Masaharu
- Department of Internal Medicine, Ashiaka Red Cross Hospital
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- Ushioda Takakazu
- 足利赤十字病院放射線科
Bibliographic Information
- Other Title
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- 脳動脈りゅう, 脳血管狭窄性病変の診断における3D‐CT angiographyの有用性の検討
Abstract
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.
Journal
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- Japanese Journal of Stroke
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Japanese Journal of Stroke 17 (5), 410-417, 1995
The Japan Stroke Society
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Keywords
Details 詳細情報について
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- CRID
- 1390282679614544128
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- NII Article ID
- 130003631188
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- ISSN
- 18831923
- 09120726
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed