The Establishing Of Canine Stomach X-ray Negative Foreign Body Model And Diagnostic Imaging

Purpose: In order to find a convenient method to establish the canine stomach X-ray negative foreign body model and to study the diagnosis result by compared with the endoscope, ultrasound and X-ray.Methods: The glove, plastic bag, wood and hose mixture, gauze, plastic cap were respectively mixed with a little food, and were fed to experimental dogs ad libitum which fasted for 24 hours. The walnut clumps was fed by gavage, stuffed with the base of canine tongue and immediately close the mouth and pharynx, and Ingested with a syringe injecting little water. Then the models were validated and studied by gastric endoscopy, ultrasound,X-ray negative and double contrast barium examination.Results: The canine stomach negative foreign body models were successfully established and validated through an endoscope. The comparative study results on the models are as follows: The position, shape and texture of negative foreign body in the stomach were intuitively and clearly demonstrated by using gastric endoscopy, and removed the foreign body through forceps. But the risk of anesthesia was not avoided. Six different foreign bodies were diagnosed by ultrasonic angiography, but not shape and texture judged. The plastic bags and walnuts were diagnosed by X-ray negative, while the abnormal images were only given by the double contrast barium examination, so the exact diagnosis was not given.Conclusion: The negative foreign body models in canine stomach are successfully established, and the advantages and disadvantages of endoscope, B ultrasound and X-ray imaging methods are clearly displayed. Therefore, it can guide clinical use based on the actual clinic of animals...