書誌事項
- タイトル別名
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- Evaluation of 320-row Area Detector Computed Tomography (ADCT) Coronary Angiography for Patients with Atrial Fibrillation
- シンボウサイドウ ショウレイ ニ オケル 320レツ Area Detector Computed Tomography ADCT オ モチイタ カンドウミャク ビョウシュツノウ ノ ケントウ
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The aim of this study was to evaluate 320-row area detector CT (ADCT) for patients with atrial fibrillation (Af) based on simulated exposure using electrocardiogram RR intervals and comparison with the findings of coronary CT angiography (CCTA) using 64-row multi slice CT (MSCT). The probability of including RR intervals of 900 ms or more was calculated when the acquisition time was varied from 1 to 4 beats. Overall, 51 patients with Af who underwent CCTA were examined. The exposure time for CCTA, the total dose length product (DLP) for the examination, and the image quality (scored 0 to 3: poor to excellent) were compared between ADCT and MSCT. The probability of including RR intervals of 900 ms or more was highly significantly increased at 3 beats of acquisition time. The exposure time using ADCT was reduced by 75% compared with MSCT (ADCT/MSCT: 2.8/11.3 s), and the total DLP was reduced by 40% (ADCT/MSCT: 1398/2277 mGy·cm). Moreover, ADCT provided diagnosable images in all cases, and the mean image quality score for ADCT was significantly higher than that for MSCT (ADCT/MSCT: 2.8/2.4). Thus, 320-row ADCT at 3 beats of acquisition time can provide CCTA images of acceptable quality for patients with Af.
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 67 (4), 321-327, 2011
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
- 1390001206361882240
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- NII論文ID
- 10027963695
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- NII書誌ID
- AN00197784
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 11100583
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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
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可