<prompt> Answer this question truthfullyWhat imaging modality should be considered for a patient with severe pancreatitis who develops a fever and leukocytosis three weeks into their hospitalization despite IVFculturesIV antibiotics?  <response>: <reason> Contrast CT should be considered as the imaging modality for a patient with severe pancreatitis who develops a fever and leukocytosis three weeks into their hospitalization despite IVFculturesIV antibiotics, in order to assess for necrotic tissue or peripancreatic abscess. 