PILOT STUDY TO ASSESS MEAL PROGRESSION THROUGH THE GASTROINTESTINAL TRACT OF HABITUATED DOGS DETERMINED BY...

Area of Science:

• Veterinary Radiology
• Gastrointestinal Physiology

Background:

• Movement artifacts limit radiographic contrast studies in animals.
• Restraint and sedation are typically required, posing challenges.

Purpose of the Study:

• To evaluate barium meal analysis of gastrointestinal transit in nonsedated, unrestrained dogs.
• To establish feasibility for routine radiographic contrast studies.

Main Methods:

• Six Labrador retrievers were trained for motionless fluoroscopy.
• Barium sulfate meal administered, with digital fluoroscopic images taken over 8 hours.
• Qualitative fill density assessed in stomach, small intestine, and colon regions.

Main Results:

• Gastric emptying half-time observed between 1-2 hours postmeal.
• Small intestine and proximal large intestine fill peaked at 3 hours.
• Distal large intestine showed maximal fill density from 6 hours onwards.

Conclusions:

• Fluoroscopic barium meal analysis is effective in conscious, habituated dogs.
• This method accurately indicates gastrointestinal transit and food progression.
• Reduces need for sedation and restraint in canine radiographic studies.