Abstract
Since the clinical manifestation of enteri-tis of various etiologies has a similar picture, and parvovirus enteritis has a high mortality rate, early diagnosis of this disease is im-portant. A number of publications demon-strate changes in ultrasound parameters dur-ing inflammatory bowel diseases. The article is devoted to comparison of ultrasound and histological changes in the wall of the stom-ach and small intestine with parvovirus en-teritis in order to distinguish the most spe-cific ultrasound markers. Object of the study – 53 dogs of mixed breeds of both sexe with a confirmed diagnosis of parvovirus enteri-tis by polymerase chain reaction in real time from the age of 6 weeks to 7 months. Re-search were conducted at the Stavropol Vet-erinary Center named after Pirogov and Vet-erinary Center of the Stavropol State Agrari-an University, by the use of SIUI Apogee 1100 Omni scanner (Shantou Institute of Ultrasonic Instruments Co., Ltd., Guang-dong, China), according to the generally accepted method using a multi-frequency linear sensor with a frequency of 5-13 MHz in B-mode. The most characteristic ultrason- ic manifestations of canine parvovirus enteri-tis are hypotension and ectasia of the stom-ach and loops of the small intestine with the presence of anechogenic fluid content in their cavity; thickening of the surface layer of the mucosa in the form of a hyperechoic strip, a decrease in the ratio of the mucous layer to the entire wall thickness of the duo-denum and jejunum by more than 2 times and increased echogenicity of the mucous layer. This picture is a result of the partial necrosis and desquamation of villi, prolifera-tion of cell infiltrate in the mucous layer itself, consisting of lymphocytes, macro-phages, a small number of histiocytes and fibroblasts.
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