書誌事項
- タイトル別名
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- Evaluation of Over Ranging in 64-slice Multidetector-row Computed Tomography Examinations for Upper Abdomen
- 64レツ MDCT オ モチイタ ジョウ フクブ サツエイ ニ オケル オーバレンジング ニ カンスル ケントウ
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抄録
64-slice multidetector-row computed tomography (MDCT) have become widely used in recent years, but there is a possibility that a large volume of dose is radiated at the outside of the scope of scanning due to the effect of over ranging (OR). In this research, the dose volume change at the outside of the scope of scanning in the case of X-ray beam width (BW) and pitch factor (PF) is measured, and the effect of BW and PF on OR is considered. We scanned the upper abdomen of an acrylic human phantom using 64-slice multidetector-row CT in 4 conditions while changing BW and PF. We then measured the dose volume absorbed in the breasts, ovary, uterus, and the dose profile on the surface of phantom. As a result, when BW and PF are increased, the dose volume radiated at the outside of the scope of scanning increased, and the effect of OR appeared. Therefore, when BW and PF are set, X-ray radiated at the outside of the scope of scanning should also be considered.
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 (1), 28-32, 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
- 1390282681337813120
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- NII論文ID
- 10031139906
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- NII書誌ID
- AN00197784
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- COI
- 1:STN:280:DC%2BC3szjt1yluw%3D%3D
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 024270132
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- PubMed
- 23358335
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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