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A total of 126 dogs with no clinical signs of gastrointestinal disease and six dogs with clinical diseases involving the gastroesophageal junction were included. For seven euthanized dogs, ultrasonographic features were also compared with gross pathology and histopathology. Cardial and abdominal esophageal wall thicknesses were measured ultrasonographically for all normal dogs and effects of weight, sex, age, and stomach filling were tested. Five layers could be identified in normal esophageal and cardial walls. The inner esophageal layer was echogenic, corresponding to the cornified mucosa and glandular portion of the submucosa. The cardia was characterized by a thick muscularis, and a transitional zone between echogenic esophageal and hypoechoic gastric mucosal layers. Mean (\u00b1SD) cardial wall thicknesses for normal dogs were 7.6 mm (\u00b11.6), 9.7 mm (\u00b11.8), 10.8 mm (\u00b11.6), 13.3 mm (\u00b12.5) for dogs in the &lt;10 kg, 10\u201319.9 kg, 20\u201329.9 kg and \u226530 kg weight groups, respectively. Mean (\u00b1SD) esophageal wall thicknesses were: 4.1 mm (\u00b10.6), 5.1 mm (\u00b11.3), 5.6 mm (\u00b11), and 6.4 mm (\u00b11.1) for the same weight groups, respectively. Measurements of wall thickness were significantly correlated with dog weight group. Ultrasonography assisted diagnosis in all six clinically affected dogs. Findings supported the use of transabdominal ultrasonography as a diagnostic test for dogs with suspected gastroesophageal disease.<\/jats:p>","DOI":"10.1111\/vru.12156","type":"journal-article","created":{"date-parts":[[2014,3,16]],"date-time":"2014-03-16T23:28:44Z","timestamp":1395012524000},"page":"552-560","source":"Crossref","is-referenced-by-count":9,"title":["ULTRASONOGRAPHIC CHARACTERISTICS OF THE ABDOMINAL ESOPHAGUS AND CARDIA IN DOGS"],"prefix":"10.1111","volume":"55","author":[{"given":"Guillaume","family":"Gory","sequence":"first","affiliation":[{"name":"Azurvet, Referral Center in Veterinary Diagnostic Imaging and Neurology 06800 Cagnes\u2010sur\u2010Mer France"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Delphine N.","family":"Rault","sequence":"additional","affiliation":[{"name":"Azurvet, Referral Center in Veterinary Diagnostic Imaging and Neurology 06800 Cagnes\u2010sur\u2010Mer 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