Sonographic diagnosis of intestinal obstruction in the dog
1998
Manczur, F. | Voros, K. | Vrabely, T. | Wladar, S. (Univ. of Vet. Sci., Budapest (Hungary). Dep. and Clinic of Internal Med.) | Nemeth, T. | Fenyves, B. (Univ. of Vet. Sci., Budapest (Hungary). Dep. and Clinic of Surgery and Ophthalmology)
Ultrasonography was performed on 44 dogs to decide whether small bowel obstruction was present. The sonographic criteria for small bowel obstruction were (1) the presence of pendulous movement of the ingesta inside the dilated bowel, (2) observation of invaginated intestines or an ingested intraluminal foreign body, (3) observation of non-uniform peristaltic activity of the dilated intestines, or (4) observation of akinetic intestinal loops together with abdominal fluid accumulation. By using these criteria, obstruction was correctly diagnosed by ultrasonography in 11 of the 13 dogs with mechanical ileus, and obstruction was correctly excluded in 29 of the 31 non-obstructive cases. Thus, the abovementioned sonographic criteria had 85 percent sensitivity and positive predictive value, and 94 percent specificity and negative predictive value. The present study suggests that ultrasonography is a valuable tool for diagnosing small intestinal obstruction in the dog
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