Ductectatic mucinous cystic neoplasms of the pancreas: evaluation with MR cholangiopancreatography.

Onaya, Hiroaki; Itai, Yuji; Niitsu, Mamoru; Chiba, Takahiro; Michishita, Nobunari; Saida, Yasuhiko

doi:10.2214/ajr.171.1.9648782

Cited by 60 publications

(22 citation statements)

References 8 publications

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“…These results agree with those of previous studies [2][3][4]. Therefore, demonstration of connection between cystic lesions and the main pancreatic duct is helpful in the diagnosis of branch duct-type IPMTs, although this finding alone does not allow us to rule out other cystic lesions [4][5][6][7][8][9]. Also in the present study, all of the 26-branch duct-type IPMTs were found to have connection with the main pancreatic duct, while only one of the 13 other cystic lesions showed such connection.…”

Section: Discussionsupporting

confidence: 91%

“…Four radiologists (9,11,13, and 15 years experience in abdominal image interpretation) who were blinded to other imaging findings and the diagnosis interpreted the images in cine mode. Each observer assessed three sets of images (0.5 or 1 mm axial images, MPR images, and both axial and MPR images) independently at intervals of a least 2 weeks.…”

Section: Image Processing and Interpretationmentioning

confidence: 99%

“…Previous studies have demonstrated that, in order to establish a diagnosis of branch duct-type IPMT, it is useful to confirm the presence of connection between the cystic tumor and the main pancreatic duct [3][4][5][7][8][9][10]. Endoscopic retrograde cholangiopancreatography (ERCP) provides the most reliable depiction of such connection, but is an invasive procedure.…”

Section: Introductionmentioning

confidence: 99%

“…Endoscopic retrograde cholangiopancreatography (ERCP) provides the most reliable depiction of such connection, but is an invasive procedure. Onaya et al reported that the source coronal images obtained by magnetic resonance cholangiopancreatography (MRCP) could demonstrate the presence of connection between the cystic lesion and the main pancreatic duct in all nine of their cases of branch duct-type IPMT [9].…”

Section: Introductionmentioning

confidence: 99%

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Branch duct-type intraductal papillary mucinous tumor: diagnostic value of multiplanar reformatted images in multislice CT

et al. 2005

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The object of this study was to evaluate the usefulness of high-resolution multiplanar reformatted (MPR) images obtained by multislice CT in demonstrating connection between pancreatic cystic lesions and the main pancreatic duct. The study included 27 lesions with connection to the main pancreatic duct and 12 lesions without. All but one of the former lesions were branch duct-type intraductal papillary mucinous tumors (IPMTs). Oblique and curved MPR images with 0.5 mm continuous slices were generated from pancreatic-phase axial images reconstructed with 0.5 mm or 1 mm thickness at 0.5 mm intervals over a 260 mm field of view. The diagnostic capabilities for demonstrating connection with the main pancreatic duct were compared among axial images, MPR images, and both axial and MPR images in combination using the Brier score. The diagnosis in MPR images for demonstrating connection was more certain than that in axial images (P<0.05). Compared with MPR images alone, the use of both axial and MPR images resulted in further improvements in diagnostic performance, although the difference was not statistically significant. The use of high-resolution MPR images significantly improves diagnostic performance for demonstrating connection between pancreatic cystic lesions and the main pancreatic duct, which is useful for the diagnosis of branch duct-type IPMT.

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Section: Discussionsupporting

confidence: 91%

Section: Image Processing and Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Branch duct-type intraductal papillary mucinous tumor: diagnostic value of multiplanar reformatted images in multislice CT

et al. 2005

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“…It is also known that cystic tumor of the pancreas is demonstrated with high signal intensity by MRCP, because of the high sensitivity of the MRCP sequence to fluid-filled structures (17). Therefore, several studies on the diagnosis of cystic tumor of the pancreas using MRCP have been conducted in recent years (18).…”

Section: Discussionmentioning

confidence: 99%

Clinical Significance of Magnetic Resonance Cholangiopancreatography for the Diagnosis of Cystic Tumor of the Pancreas Compared with Endoscopic Retrograde Cholangiopancreatography and Computed Tomography

Mera¹,

Tajiri²,

Muto³

et al. 1999

Japanese Journal of Clinical Oncology

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Background: Cystic tumor of the pancreas has been investigated by a variety of imaging techniques. Magnetic resonance cholangiopancreatography (MRCP) is being widely used as a non-invasive diagnostic modality for investigation of the biliary tree and pancreatic duct system. The purpose of this study was to compare MRCP images with those of endoscopic retrograde cholangiopancreatography (ERCP) and computed tomography (CT) in order to clarify the diagnostic efficacy of MRCP for cystic tumor of the pancreas. Methods:We retrospectively studied 15 patients with cystic tumor of the pancreas that had been surgically resected and histopathologically confirmed. There were five cases of intraductal papillary adenocarcinoma, five of intraductal papillary adenoma, two of serous cyst adenoma,two of retention cyst associated with invasive ductal adenocarcinoma and one of solid cystic tumor. Results:In all cases MRCP correctly identified the main pancreatic duct (MPD) and showed the entire cystic tumor and the communication between the tumor and the MPD. On the other hand, the detection rate by ERCP of the cystic tumor and the communication between the cystic tumor and the MPD was only 60%. Although the detection rates by CT for the septum and solid components inside the cystic tumor were 100 and 90.0%, respectively, those of MRCP for each were 58.3 and 20.0%. Conclusion: MRCP is capable of providing diagnostic information superior to ERCP for the diagnosis of cystic tumor of the pancreas. Although MRCP may provide complementary information about the whole lesion of interest, the characteristic internal features of cystic tumor of the pancreas should be carefully diagnosed in combination with CT.

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Pancreas

Velloni¹,

Altun²,

Armao³

et al. 2015

Abdominal‐Pelvic MRI

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Ductectatic mucinous cystic neoplasms of the pancreas: evaluation with MR cholangiopancreatography.

Cited by 60 publications

References 8 publications

Branch duct-type intraductal papillary mucinous tumor: diagnostic value of multiplanar reformatted images in multislice CT

Branch duct-type intraductal papillary mucinous tumor: diagnostic value of multiplanar reformatted images in multislice CT

Clinical Significance of Magnetic Resonance Cholangiopancreatography for the Diagnosis of Cystic Tumor of the Pancreas Compared with Endoscopic Retrograde Cholangiopancreatography and Computed Tomography

Pancreas

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