Normal canine pediatric gastrointestinal ultrasonography

Area of Science:

• Veterinary Medicine
• Diagnostic Imaging
• Canine Anatomy

Background:

• Normal ultrasonographic findings for adult canine gastrointestinal tracts are documented.
• Interpreting abdominal ultrasonography in puppies is challenging due to limited data on normal parameters.

Purpose of the Study:

• To investigate the normal sonographic appearance of the gastrointestinal tract in Beagle puppies.
• To determine normal jejunal lymph node size and characterize abdominal fluid in puppies.
• To establish reference ranges for gastrointestinal wall and mucosal layer thickness in young dogs.

Main Methods:

• Ultrasound examination of 23 healthy Beagle puppies aged 7-12 weeks.
• Measurement of duodenal, stomach, jejunal, and colonic wall thickness.
• Assessment of duodenal and jejunal mucosal layer thickness.
• Evaluation of jejunal lymph node size and abdominal fluid presence.

Main Results:

• The duodenum exhibited the greatest wall thickness (mean 3.8 mm).
• Mean wall thicknesses were: stomach 2.7 mm, jejunum 2.5 mm, and colon 1.3 mm.
• Mean mucosal layer thicknesses were: duodenum 2.7 mm and jejunum 1.5 mm.
• Jejunal lymph nodes averaged 7.1 mm in thickness, and all puppies had mild anechoic peritoneal fluid.

Conclusions:

• Established normal ultrasonographic dimensions for the canine gastrointestinal tract in puppies.
• Provided crucial reference data for veterinary diagnostic imaging in young dogs.
• A mild amount of anechoic free peritoneal fluid is a normal finding in puppies.