Classification of anatomical morphology of cystic duct and its association with gallstone

Figure 1 The length of cystic duct and < common hepatic duct were measured on magnetic resonance cholangiopancreatography images. A: Measure relevant anatomy: Cystic duct (CD) (white arrow), common hepatic duct (CHD) (black arrow), common bile duct (green arrow); B: Length of CD: Measurements are taken from the beginning of the cystic duct and along the trajectory of the CD until it reaches the point of confluence of the CD (white arrow) into the CHD (black arrow); C: < CHD: The angle between the common hepatic duct (black arrow) and the cystic duct (white arrow).