Association of Average Cyst Diameter Versus Single Maximum Diameter of Pancreatic Cysts to Cyst Volume and Impact on Screening Guideline Classification.

Objective: To compare the association of single maximum diameter and average cyst diameter of pancreatic cysts measured on magnetic resonance cholangiopancreatography (MRCP) with segmented cyst volume and secondarily evaluate the effect of average cyst diameter on screening guideline classification.

Methods: Consecutive patients with pancreatic cysts < 3 cm on MRCP in 2017 were retrospectively identified. The single maximum diameter and perpendicular short axis diameter of pancreatic cysts obtained on coronal MRCP were measured and their average was taken to determine average cyst diameter.