Inclusion Criteria:  Male and females ≥ 18 years; Scheduled for elective PD; ASA score < 4; High-quality preoperative cross-sectional imaging of the abdomen performed roughly within one month before surgery; Upfront or after neoadjuvant therapy surgery is allowed; Ability of the subject to understand the character and individual consequences of the clinical trial; Written informed consent.  Exclusion Criteria:  Patients undergoing emergency surgery; Patients with high serum pancreatic amylase or lipase before surgery; Chronic use of steroids; Informed consent withdrawal; Pancreaticogastrostomy (PG); Use of octreotide analogs; Inability to perform the resection for any reason; Total or distal pancreatectomy; Need to extend the resection to the pancreas body for any reason. Inability to undergo MRI because of contraindications (e.g. claustrophobia, presence of non-MRI-compatible metal implants)