Fig 1.
Schematic illustration of the right side of the abdomen for the examination of the right dorsal colon—RDC (A). The imaging window was allotted using four lines: line 1 –from the shoulder joint to the coxal tuberosity, line 2 (parallel to line 1)–from the elbow joint to the stifle joint, line 3 –a line along the 9th intercostal space, line 4 (parallel to line 3)–a line along the 15th intercostal space. The liver was visible next to the RDC (B), the right ventral colon was visible below the RDC (C).
Fig 2.
A normal sonogram of the right dorsal colon in a healthy pony.
Image obtained by placing a convex transducer in the right 12th intercostal space. The right dorsal colon (A) was identified as a semicircle with bowel gas beam reflections. The liver (B) is seen in the upper hand corner of the image, the duodenum (C) is seen between the liver and the right dorsal colon. The measured thickness of the colonic wall was 0.25 cm.
Table 1.
The percentage of organ visibility in different intercostal spaces (Examination window right dorsal colon) in 23 examined ponies and miniature horses.
Table 2.
Right dorsal colon wall thickness visible using ultrasonography in 23 ponies and miniature horses and its comparison with values obtained from 10 large breed horses (Thoroughbreds).