書誌事項
- タイトル別名
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- Optimized Magnetic Resonance Sequences and Parameters with Operative Assisted Images for Radical Prostatectomy at 3 Tesla-Magnetic Resonance Image
- 臨床技術 3T-MR装置を用いた根治的前立腺全摘除術における手術支援用3D画像作成のための適切なMR撮像シーケンスと撮像条件の検討
- リンショウ ギジュツ 3T-MR ソウチ オ モチイタ コンジテキ ゼンリツセン ゼンテキジョジュツ ニ オケル シュジュツ シエンヨウ 3D ガゾウ サクセイ ノ タメ ノ テキセツ ナ MR サツゾウ シーケンス ト サツゾウ ジョウケン ノ ケントウ
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抄録
The objective of our study was to optimize magnetic resonance image (MRI) sequences and parameters using operative assisted images (three-dimensional images) for radical prostatectomy at 3 tesla (T) MRI. Five healthy volunteers underwent MRI on the 3.0 T scanner. Various sequences and parameters [Cube (TE/TR=18, 50, 90 ms/2000 ms), FIESTA (TE/TR/FA=2.4 ms/5 ms/40°, 90°), fSPGR (TE/TR/FA=2.3 ms/11.2 ms/20°), slice thickness=1.2 mm, matrix=192×160] were respectively compared. Several structures of the pelvis (the central zones and transition zones of the prostate, the peripheral zones of the prostate, seminal vesicles, rectum wall, bladder, muscle and fat) were determined. The signal intensities of these structures were measured on reformatted axial images and compared against several structures of the pelvis. Correlation with various sequences and parameters was based on the signal-to-noise ratio (SNR), the contrast ratio (CR) and the presence of artifacts. Student’s t-test was used for statistical analysis. With Cube (TE/TR=50 ms/2000 ms), the average value of visual evaluation with artifacts was high, and SNR and CR were higher than for other sequence and parameters. Optimized MRI sequences and parameters were Cube (TE/TR=50 ms/2000 ms) which provides improved SNR and CR and the presence of artifacts with operative assisted images for radical prostatectomy. These operative assisted images obtained from Cube (TE/TR=50 ms/2000 ms) are likely to be useful for surgery.
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 (5), 529-534, 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
- 1390282681338764800
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- NII論文ID
- 10031159480
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- NII書誌ID
- AN00197784
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- COI
- 1:STN:280:DC%2BC3sbhs1aqtA%3D%3D
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- ISSN
- 18814883
- 03694305
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- NDL書誌ID
- 024678062
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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
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可