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European Radiology

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01-02-2015 | Hepatobiliary-Pancreas

Differentiation of noncalculous periampullary obstruction: comparison of CT with negative-contrast CT cholangiopancreatography versus MRI with MR cholangiopancreatography

Authors: Bin Li, Lei Zhang, Zhui-Yang Zhang, Jian-Ming Ni, Feng-qi Lu, Wen-Juan Wu, Chun-juan Jiang

Published in: European Radiology | Issue 2/2015

Abstract

Objectives

The purpose of this study was to compare CT with negative-contrast CT cholangiopancreatography (nCTCP) using subvolume minimum intensity projection (MinIP) versus MRI with MRCP in differentiating noncalculous periampullary obstruction.

Methods

Sixty-four patients with clinically proven noncalculous periampullary obstructions who had undergone both MDCT and MR examinations before operation were reviewed retrospectively. Two reviewers independently interpreted the two image sets (the CT with nCTCP set [CT set] vs. the MRI with MRCP set [MRI set]) in differentiating both benign from malignant obstruction and pancreatic head carcinoma (PHC) from non-PHC, and the results were compared to the final clinical records.

Results

In this study, no statistically significant differences were observed in the accuracy of differentiating benign from malignant periampullary obstruction (p = 0.754 for reviewer 1 and p = 0.508 for reviewer 2) on the two image sets. The accuracy of differentiating PHC from non-PHC was also statistically insignificant (p = 0.125 for reviewer 1 and p = 1.000 for reviewer 2) on the two image sets.

Conclusion

The CT set provides a comparable performance to that of the MRI set in differentiating noncalculous periampullary obstruction.

Key Points

• nCTCP with subvolume MinIP is a practical tool in evaluating biliary obstruction

• Two image sets have a comparable performance in differentiating noncalculous periampullary obstruction

• MDCT could serve as an alternative in patients not eligible for MRI

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Title: Differentiation of noncalculous periampullary obstruction: comparison of CT with negative-contrast CT cholangiopancreatography versus MRI with MR cholangiopancreatography
Authors: Bin Li
Lei Zhang
Zhui-Yang Zhang
Jian-Ming Ni
Feng-qi Lu
Wen-Juan Wu
Chun-juan Jiang
Publication date: 01-02-2015
Publisher: Springer Berlin Heidelberg
Published in: European Radiology / Issue 2/2015
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI: https://doi.org/10.1007/s00330-014-3430-4

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Differentiation of noncalculous periampullary obstruction: comparison of CT with negative-contrast CT cholangiopancreatography versus MRI with MR cholangiopancreatography

Abstract

Objectives

Methods

Results

Conclusion

Key Points

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Objectives

Methods

Results

Conclusion

Key Points

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