Gallbladder Motility Study

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NPO overnight.

Time 0 min: Measure GB in long axis and short axis from subxiphoid approach and right intercostal approach. The proper position is maximum size of the GB measure in length apex to cystic duct and maximum width. 2 efficiency clips in long axis sweeping the GB; 1 from subxyphoid and 1 from right intercostal approaches.

Feed the patient 1 can of A/D

Time 15 min: Same 4 images and measurements and GB efficiency 2 clips as at time 0 min.

Time 30 min: Same 4 measurements and GB efficiency 2 clips as at time 0 min. The normal Gb should reduce in size by 25% after 30 min. This is a basis of a study we are doing but from a practical standpoint demonstrates if the GB is working at all. If no movement from cholecystokinin stimulated postprandially, then the GB is dysfunctional and suggests need for removal.

Gallbladder at 0 min. Long axis xiphoid.

Gallbladder at 30 min. Long axis.

“DECREASED GALLBLADDER EMPTYING IN DOGS WITH BILIARY SLUDGE OR GALLBLADDER MUCOCELE TARO TSUKAGOSHI, KOICHI OHNO, ATSUSHI TSUKAMOTO, KENJIRO FUKUSHIMA, MASASHI TAKAHASHI, KO NAKASHIMA, YASUHITO FUJINO, HAJIME TSUJIMOTO Biliary sludge in dogs is dismissed commonly as an incidental finding. On the other hand, gallbladder mucocele is reported increasingly in dogs and can lead to biliary obstruction or gallbladder rupture. Cholestasis is sus- pected to play a role in development of sludge and mucoceles, though there are no data in dogs to support this. We investigated gallbladder emptying, a key factor in biliary flow, in dogs with mobile sludge, immobile sludge, or gallbladder mucocele and in healthy controls. Gallbladder ejection fraction estimated by ultrasonography was used as the index of gallbladder emptying. The ejection fraction at 60 min after eating was significantly de- creased in all three abnormal groups. Moreover, all dogs with sludge or a mucocele had gallbladder distension. These changes were the greatest in the mucocele group. Thus, biliary stasis occurs not only in dogs with gallblad- der mucocele but also in dogs with biliary sludge. Cholestasis may play a role in the pathogenesis or progres- sion of these diseases in dogs. ⃝C 2012 Veterinary Radiology & Ultrasound, Vol. 53, No. 1, 2012, pp 84–91.”