Classification of hepatobiliary scintigraphy patterns in segmented gallbladder according to anatomical discordance

Figure 2 Schematic of the classification of filling and emptying patterns in segmented gallbladder as measured by hepatobiliary scintigraphy. A: Type 1 was defined as a normal filling and emptying pattern; B: Type 2 was defined as an emptying defect at the distal segment; C: Type 3 was defined as a filling defect at the distal segment. GB: gallbladder; HBS: Hepatobiliary scintigraphy.