Which imaging modality is best for detecting and staging pancreatic cancer

Which imaging modality is best for detecting and staging pancreatic cancer? 

MDCT obtained in the pancreatic parenchymal phase with MPRs is the best imaging modality for detecting lesions as small as 2-3 mm and providing a detailed evaluation of the pancreatic duct. MDCT is better than US at evaluating adjacent spread or nodal involvement. Overlying bowel gas may limit evaluation of the pancreas with US; however, if the pancreas can be completely imaged with US, carcinoma can reliably be excluded. More recently, dual-energy CT obtained with a lower tube voltage (kVp) has been shown to increase detection of adenocarcinoma. Dynamic MRI with gadolinium can be performed in patients with iodine contrast allergy.

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