Decreased postprandial gallbladder emptying in patients with black pigment stones

Figure 5 Postprandial contractility indices of the gallbladder. A significantly shorter EP was observed in patients with BPSs than in those with CSs. EF in BPS patients was significantly decreased in comparison to that in CS patients and normal subjects. EF in CS patients also significantly decreased in comparison to that in normal subjects. Consequently, ER in patients with BPSs and CSs was significantly smaller than that in normal subjects. ^aP < 0.05, ^bP < 0.01.