Incremental Role of Pancreatic Magnetic Resonance Imaging after Staging Computed Tomography to Evaluate Patients with Pancreatic Ductal Adenocarcinoma.
- Author:
Hye Jin KIM
1
;
Mi Suk PARK
;
Jin Yong LEE
;
Kyunghwa HAN
;
Yong Eun CHUNG
;
Jin Young CHOI
;
Myeong Jin KIM
;
Chang Moo KANG
Author Information
- Publication Type:Original Article
- Keywords: Pancreas ductal adenocarcinoma; Computed tomography; Magnetic resonance imaging; Resectability
- MeSH: Adenocarcinoma*; Humans; Liver; Magnetic Resonance Imaging*; Neoplasm Metastasis; Pancreatic Ducts*; Prognosis; Survival Rate
- From:Cancer Research and Treatment 2019;51(1):24-33
- CountryRepublic of Korea
- Language:English
- Abstract: PURPOSE: The purpose of this study was to investigate the impact of contrast enhanced pancreatic magnetic resonance imaging (MRI) in resectability and prognosis evaluation after staging computed tomography (CT) in patients with pancreatic ductal adenocarcinoma (PDA). MATERIALS AND METHODS: From January 2005 to December 2012, 298 patients were diagnosed to have potentially resectable stage PDA on CT. Patients were divided into CT+MR (patients underwent both CT and MRI; n=216) and CT only groups (n=82). Changes in resectability staging in the CT+MR group were evaluated. The overall survival was compared between the two groups. The recurrence-free survival and median time to liver metastasis after curative surgery were compared between the two groups. RESULTS: Staging was changed from resectable on CT to unresectable state on MRI in 14.4% of (31 of 216 patients) patients of the CT+MR group. The overall survival and recurrence-free survival rates were not significantly different between the two groups (p=0.162 and p=0.721, respectively). The median time to liver metastases after curative surgery in the CT+MR group (9.9 months) was significantly longer than that in the CT group (4.2 months) (p=0.011). CONCLUSION: Additional MRI resulted in changes of resectability and treatment modifications in a significant proportion of patients who have potentially resectable state at CT and in prolonged time to liver metastases in patients after curative surgery. Additional MRI to standard staging CT can be recommended for surgical candidates of PDA.
