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Optimal target b-value on computed diffusion-weighted magnetic resonance imaging for visualization of pancreatic ductal adenocarcinoma and focal autoimmune pancreatitis
http://hdl.handle.net/10271/0002000455
http://hdl.handle.net/10271/0002000455b108f30b-d458-40fd-b2e8-99ad21fb5478
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Abdom Radiol-46-636 .pdf (7.3 MB)
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| Item type | 共通アイテムタイプ / Common item types(1) | |||||||||||||
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| 公開日 | 2025-06-23 | |||||||||||||
| タイトル | ||||||||||||||
| タイトル | Optimal target b-value on computed diffusion-weighted magnetic resonance imaging for visualization of pancreatic ductal adenocarcinoma and focal autoimmune pancreatitis | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| キーワード | ||||||||||||||
| 主題 | magnetic resonance imaging | |||||||||||||
| キーワード | ||||||||||||||
| 主題 | computed diffusion-weighted imaging | |||||||||||||
| キーワード | ||||||||||||||
| 主題 | pancreas | |||||||||||||
| キーワード | ||||||||||||||
| 主題 | adenocarcinoma | |||||||||||||
| キーワード | ||||||||||||||
| 主題 | autoimmune pancreatitis | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ | journal article | |||||||||||||
| アクセス権 | ||||||||||||||
| アクセス権 | open access | |||||||||||||
| 著者 |
Ichikawa, Shintaro
× Ichikawa, Shintaro
× Kromrey, Marie-Luise
× Motosugi, Utaroh
× Onishi, Hiroshi
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| 著者情報 |
市川, 新太郎
× 市川, 新太郎
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| 書誌情報 |
en : Abdominal radiology 巻 46, 号 2, p. 636-646, 発行日 2021-02 |
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| 出版者 | ||||||||||||||
| 出版者 | Springer Nature | |||||||||||||
| 権利 | ||||||||||||||
| 権利情報 | This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1007/s00261-020-02695-0 | |||||||||||||
| 抄録 | ||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Purpose: To compare computed diffusion-weighted imaging (cDWI) feasibility with that of directly acquired DWI for visualizing pancreatic ductal adenocarcinoma (PDAC) and focal autoimmune pancreatitis (AIP). Methods: From April 2012 to January 2017, 135 patients with PDAC (n=111) or focal AIP (n=24) were retrospectively enrolled. They underwent DWI with b-values of 0, 500, and 1000 s/mm2. From DWI0 and DWI1000, we generated cDWIs with targeted b-values of 1500, 2000, and 3000 s/mm2. The lesions’ signal intensities, image quality, signal-intensity ratio (SIR) of lesions and pancreatic parenchyma to spinal cord, and lesion-to-pancreatic parenchyma contrast ratio (CR) were compared among the five DWI protocols (DWI500, DWI1000, cDWI1500, cDWI2000, and cDWI3000). SIR was analyzed by receiver operating characteristic (ROC) analyses. Results: DWI500, DWI1000, and cDWI1500 had higher image quality than cDWI2000 and cDWI3000 (P<0.001). The incidence of clear hyperintense PDAC was highest on cDWI2000, followed by cDWI1500, and cDWI3000 (P<0.001–0.002), while the incidence of clear hyperintense AIP was higher on DWI1000, cDWI1500, and cDWI2000 than on DWI500 and cDWI3000 (P=0.001–0.022). SIRs decreased whereas CRs increased as the b-value increased, for both PDAC and AIP. The area under the ROC curve (AUC) of SIRlesion was significantly lower on cDWI1500 than on cDWI2000 and cDWI3000 (P<0.001). Conclusion: cDWI1500 or cDWI2000 generated from b-values of 0 and 1000 s/mm2 were the most effective for visualizing PDAC and focal AIP; however, the SIRlesion AUC was significantly lower on cDWI1500 than on cDWI2000 and cDWI3000. |
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| PISSN | ||||||||||||||
| 収録物識別子 | 2366-004X | |||||||||||||
| EISSN | ||||||||||||||
| 収録物識別子 | 2366-0058 | |||||||||||||
| PubMed番号 (PMID) | ||||||||||||||
| 関連識別子 | 32740865 | |||||||||||||
| 出版社DOI | ||||||||||||||
| 関連識別子 | https://doi.org/10.1007/s00261-020-02695-0 | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
