Kang and colleagues’ retrospective study included 66 patients (35 men, 31 women; mean age, 60.5 years) with PDAC resection between January 2009 and March 2016, who underwent postoperative surveillance CT demonstrating a soft tissue lesion at the operative site or at the site of peripancreatic vessels and subsequent MRI with DWI for further evaluation. CT at least 6 months after MRI served as reference standard, with increase in size of the soft tissue by ≥5 mm differentiating locally recurrent tumor (n=26) and post-surgical fibrosis (n=40). Read more . . .
According to ARRS’ American Journal of Roentgenology (AJR), adding diffusion-weighted MRI (DWI) to conventional MRI improves the differentiation of locally recurrent tumor and post-surgical fibrosis after pancreatic ductal adenocarcinoma (PDAC) resection, primarily due to improved sensitivity for recurrence. “The findings indicate a potential role for MRI with DWI in surveillance protocols after PDAC resection,” clarified corresponding author Tae Wook Kang, MD from Samsung Medical Center in Seoul, South Korea.