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. 2015 Apr;9(4):1917-1921.
doi: 10.3892/ol.2015.2935. Epub 2015 Feb 5.

Magnetic resonance cholangiopancreatography: Comparison of two- and three-dimensional sequences for the assessment of pancreatic cystic lesions

Kefu Liu  1 , Ping Xie  2 , Weijun Peng  3 , Zhengrong Zhou  3
Affiliations

Magnetic resonance cholangiopancreatography: Comparison of two- and three-dimensional sequences for the assessment of pancreatic cystic lesions

Kefu Liu et al. Oncol Lett. 2015 Apr.

Abstract

The present study aimed to compare two-dimensional (2D) and three-dimensional (3D) magnetic resonance cholangiopancreatography (MRCP) for the assessment of pancreatic cystic lesions. Between February 2009 and December 2011, 35 patients that had been diagnosed with pancreatic cystic lesions, which was confirmed by surgery and pathology, underwent pre-operative 2D or 3D MRCP for pre-operative evaluation. In the present study, the quality of these 2D and 3D MRCP images, the visualization of the features of the cystic lesions, visualization of the pancreatic main duct and prediction of ductal communication with the cystic lesions were evaluated and compared using statistical software. The 3D MRCP images were determined to be of higher quality compared with the 2D MRCP images. The features of the cystic lesions were visualized better on 3D MRCP compared with 2D MRCP. The same capability for the visualization of the segment of the pancreatic main duct was exhibited by 3D and 2D MRCP. There was no significant difference between the area under the receiver operating characteristic curve values of 2D and 3D MRCP, which assessed the prediction of communication between cystic lesions and the pancreatic main duct. It was concluded that, compared with 2D MRCP, 3D MRCP provides an improved assessment of pancreatic cystic lesions, but does not exhibit an improved capability for the visualization of the pancreatic main duct or for the prediction of communication between cystic lesions and the pancreatic main duct.

Keywords: image quality; magnetic resonance cholangiopancreatography; pancreatic cystic lesion; pancreatic duct; three dimensional; two dimensional.

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Figures

Figure 1
Figure 1
MRCP performed on a 61-year-old male diagnosed with pancreatic mucinous cystadenoma. (A) 2D MRCP clearly revealed that the cystic lesion communicated with the pancreatic main duct. (B) 3D MRCP exhibited superior image quality and features of the lesion compared with 2D MRCP, and also clearly revealed that the cystic lesion communicated with the pancreatic main duct. 2D, two-dimensional; 3D, three dimensional; MRCP, magnetic resonance cholangiopancreatography.
Figure 2
Figure 2
MRCP performed on a 71-year-old male diagnosed with pancreatic combined-type intraductal papillary mucinous neoplsam. (A) 2D MRCP clearly revealed that the cystic lesion communicated with the pancreatic main duct. (B) 3D MRCP exhibited the superior image quality and features of the lesion compared with 2D MRCP, and also clearly revealed that the cystic lesion communicated with the pancreatic main duct. 2D, two-dimensional; 3D, three dimensional; MRCP, magnetic resonance cholangiopancreatography.
Figure 3
Figure 3
Imaging examination performed on a 35-year-old male diagnosed with pancreatic pseudocyst. (A) T2-weighted imags revealed that the pancreatic pseudocyst exhibited low signal intensity (arrow). (B) 2D MRCP did not reveal the cystic lesion. (C) 3D MRCP exhibited the superior image quality compared with 2D MRCP, but did not reveal the cystic lesion and pancreatic main duct. 2D, two-dimensional; 3D, three dimensional; MRCP, magnetic resonance cholangiopancreatography.
Figure 4
Figure 4
MRCP performed on a 46-year-old male diagnosed with pancreatic serous cystadenoma. (A) 2D MRCP resulted in the misdiagnosis of the cystic lesion communication with pancreatic main duct as the lesion was immediately adjacent to the main duct. (B) 3D MRCP exhibited the superior image quality, features of the lesion and the same capability of visualization of the pancreatic main duct in comparison with 2D MRCP, but ductal communication of the cystic lesion was misdiagnosed on 3D MCRP also. 2D, two-dimensional; 3D, three dimensional; MRCP, magnetic resonance cholangiopancreatography.
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