書誌事項
- タイトル別名
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- Proposal for Contrast-amplified Image Reconstruction Methods by Adjusting Computed Tomography Value Scale in Three-dimensional Image Processing
- 3D ガゾウ サクセイ ニ オケル CTチ スケール ノ ヘンコウ ニ ヨル コントラスト ゾウフク ガゾウ サイコウセイホウ ノ テイアン
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抄録
To create three-dimensional computed tomography angiography (3D-CTA) images of blood vessels, it is important to acquire a high-contrast original image of the blood vessels and the surrounding tissues. However, reexamination is likely to be needed if, due to the condition of the examinee, insufficient contrast enhancement is achieved. This prompted us to design a method of amplifying image contrast using software that simply adds the CT value to each corresponding pixel of the original image, i.e., the same image is added after the scan. This prevents spatial and time discontinuities with the original image. The CT value of the original image can also be increased arbitrarily to any value by adjusting the weighting level of the added image. The difference in CT values between the pixels can thus be amplified without changing the contours of the original image. Since this method enables the original image’s contrast to be amplified by post-processing, i.e., without increasing radiation load exposure or employing additional contrast medium, it is a technique with high clinical utility.
収録刊行物
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- 日本放射線技術学会雑誌
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日本放射線技術学会雑誌 69 (8), 864-872, 2013
公益社団法人 日本放射線技術学会
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詳細情報 詳細情報について
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- CRID
- 1390282681340190720
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- NII論文ID
- 10031186410
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- NII書誌ID
- AN00197784
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- COI
- 1:STN:280:DC%2BC3sbhs1ylsA%3D%3D
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 024855248
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- PubMed
- 23965787
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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
- NDL
- Crossref
- PubMed
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可