| Differentiation between pancreatic carcinoma and mass-forming chronic pancreatitis: Usefulness of high b value diffusion-weighted imaging. | |
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MedLine Citation:
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PMID: 21955434 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVE: To investigate the value of high b value diffusion-weighted (DW) imaging in differentiating between pancreatic carcinoma and mass-forming chronic pancreatitis (MFCP). METHODS: Fifty-one consecutive patients with pathology-proven pancreatic carcinoma (n = 37) or MFCP (n = 14) were evaluated with DW imaging (b value, 0 and 1000 s/mm(2) ) at a 3-T MR system. Overall 20 healthy volunteers were evaluated as the control group. The apparent diffusion coefficient (ADC) values of normal pancreas, pancreatic carcinoma, MFCP, and mass-associated obstructive pancreatitis were measured. RESULTS: On high b value (1000 s/mm(2) ) DW images, both pancreatic carcinoma and MFCP were hyperintense focal lesions; mass-associated obstructive pancreatitis occurred in 17 of 37 (45.9%) pancreatic carcinoma and 8 of 14 (57.1%) MFCP. The ADC (×10(-3) mm(2) /s) of the pancreatic carcinomas (1.06 ± 0.15) was significantly lower than that of normal pancreas (1.47 ± 0.18; P < 0.01), MFCP (1.35 ± 0.14; P < 0.01) and mass-associated chronic pancreatitis (1.44 ± 0.17; P < 0.01). The ADC of MFCP was also lower than that in the normal pancreas (P = 0.025), whereas the ADC of mass-associated obstructive pancreatitis was not different from those of the MFCP (P = 0.113) and normal pancreas (P = 0.544). When 1.195 was used as the optimal cut-off value, ADC quantification obtained a sensitivity of 85.7% and a specificity of 86.5% for differentiating pancreatic carcinomas from MFCP. CONCLUSION: High b value DW imaging in combination with ADC quantification at a 3-T MR system is useful in differentiating between pancreatic carcinoma and MFCP. |
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Authors:
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Wen Cai Huang; Jing Sheng; Shi Yue Chen; Jian Ping Lu |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of digestive diseases Volume: 12 ISSN: 1751-2980 ISO Abbreviation: J Dig Dis Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-09-29 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101302699 Medline TA: J Dig Dis Country: Australia |
Other Details:
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Languages: eng Pagination: 401-8 Citation Subset: IM |
Copyright Information:
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© 2011 The Authors. Journal of Digestive Diseases © 2011 Chinese Medical Association Shanghai Branch, Chinese Society of Gastroenterology, Renji Hospital Affiliated to Shanghai Jiaotong University School of Medicine and Blackwell Publishing Asia Pty Ltd. |
Affiliation:
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Department of Radiology, Changhai Hospital, Second Military Medical University, Shanghai, China. |
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