Determining the normal diameter of cystic and common bile ducts in adult German Shepherd dogs by ultrasonography method

Subject Areas : Radiology and Ultrasound

Samin Ziadlou ¹ , Siamak Alizadeh ^{2 *} , Mohammadreza Hosseinchi ³

1 - Department of Clinical Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran
2 - Department of Veterinary Medicine, Naghadeh Branch, Islamic Azad University, Naghadeh, Iran
3 - Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia Branch, Islamic Azad University, Urmia, Iran

Received: 2024-02-04 Accepted : 2024-07-22 Published : 2025-05-05

Keywords: Common bile duct, Cystic duct, German Shepherd dog, Ultrasonography,

Abstract :

The current study aimed to evaluate the normal diameter size of cystic and common bile ducts by ultrasound method in adult German Shepherd dogs with 95% confidence to be used in the interpretation of results and clinical decisions. In this cross-sectional descriptive study used 12 adult German Shepherd dogs (6 males and 6 females) with an average weight of 24.37±3.65 kg and a mean age of 2.40 ± 0.495 years. Ultrasonography of these dogs were obtained from dorsoventral, left and right lateral recumbency in the inspiration phase of the animal's breathing. Anatomical studies were performed following anesthesia and during surgery of each dog. According to the results of this study, the mean diameter of the cystic duct in gallbladder level was 4.17 ± 0.58 mm, and the mean diameter of the common bile duct in the hepatis porta and major duodenal papilla levels were 3.23 ± 0.48 and 3.14 ± 0.63 mm, respectively. The diameter of the cystic duct in the gallbladder level is greater in males than in females, and the mean diameter of the common bile duct in the hepatis porta and major duodenal papilla levels is larger in females than in males but the differences are not significant (p>0.05). The findings obtained in this study can be utilized to interpret the findings and clinical decisions about the normal and abnormal size of the diameter of the cystic and the common bile duct in adult German Shepherd dogs.

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