Added value of diffusion-weighted imaging to MR cholangiopancreatography for the diagnosis of bile duct dilatations.
Purpose: To investigate the added value of diffusion-weighted imaging (DWI) when used with conventional T2-weighted magnetic resonance (MR) imaging (T2WI) and MR cholangiopancreatography (MRCP) for diagnosing bile duct dilatations. Methods: Our institutional review board approved this retrospective...
| Publicado en: | Abdominal Radiology Vol. 41; no. 3; pp. 485 - 493 |
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| Autores principales: | , , , , , |
| Formato: | Journal Article |
| Publicado: |
Springer Nature
Mar2016
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=114191300&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 114191300 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 2366004X JT14 jtl: Abdominal Radiology issn: 2366004X maglogo: N pubinfo: dt: Mar2016 vid: 41 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 114191300 10.1007/s00261-015-0612-8 114191300 ppf: 485 ppct: 8 formats: fmt: @attributes: type: P tig: atl: Added value of diffusion-weighted imaging to MR cholangiopancreatography for the diagnosis of bile duct dilatations. aug: au: Tsai, Tzu-Hsueh Hsu, Jui-Sheng Lai, Ming-Lai Liu, Gin-Chung Shih, Ming-Chen Chen, Chiao-Yun affil: Department of Medical Imaging, Kaohsiung Medical University Hospital, No. 100 Tz You 1st Road Kaohsiung 807 Taiwan sug: ab: Purpose: To investigate the added value of diffusion-weighted imaging (DWI) when used with conventional T2-weighted magnetic resonance (MR) imaging (T2WI) and MR cholangiopancreatography (MRCP) for diagnosing bile duct dilatations. Methods: Our institutional review board approved this retrospective study protocol and waived the informed consent requirement. The study included 151 consecutive patients (70 men, 81 women) with intra- and/or extra-hepatic bile duct dilatation examined using MR imaging. Two radiologists independently and randomly reviewed 3 image sets (A: MRCP and T2WI; B: DWI; and C: combined T2WI, MRCP, and DWI) at different occasions to differentiate between malignancy, biliary lithiasis, and benign dilatation. The sensitivity, specificity, and diagnostic accuracy of these imaging sets were calculated and compared. Results: For both readers, combined T2WI, MRCP, and DWI exhibited significantly higher sensitivity and diagnostic accuracy for malignant dilatation, compared with conventional T2WI and MRCP ( P < 0.01 for both readers). However, DWI did not significantly affect the sensitivity and diagnostic accuracy for biliary lithiasis or benign dilatation. Conclusion: The addition of DWI to T2WI and MRCP sequences yields significantly higher sensitivity and diagnostic accuracy when examining bile duct dilatations, particularly malignant dilatations. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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