title: Evaluation of the gastro-oesophageal junction: defining the incompetent cardio-oeosophageal angle non-invasively with ultrasound and computerized tomography.
abstract: This study aimed to demonstrate the presence of gastro-oesophageal reflux disease (GORD) non-invasively using ultrasound (US) and computerized tomography (CT). Intra-abdominal oesophageal length (IAOL) and cardio-oesophageal angle (COA) were measured by US in 25 patients with known  reflux and in 25 healthy subjects (control group). CT images of 42 patients with reflux disease and 44 controls were reviewed retrospectively, and IAOL and COA were measured on curved multiplanar format images. Using a cut-off value for IAOL of 20.5 mm, the sensitivity to detect GORD with  US was 96% and the specificity was 80% and, with CT, the sensitivity was 95% and the specificity was 78%. A cut-off value of 138.5° for COA yielded sensitivity and specificity values for GORD detection of 76% and 72% with US and 83% and 80% with CT, respectively. In conclusion, with equivocal  diagnostic findings, IAOL and COA are useful parameters that can be determined non-invasively by US or CT and may aid diagnosis and treatment choices for patients with suspected GORD.
authors: Department of Radiology, Kasimpasa Military Hospital, Istanbul, Turkey. yildirimduzgun@yahoo.com
authors: D
authors: D
authors: Yildirim
authors: B
authors: B
authors: Ekçi
authors: B
authors: B
authors: Gürses
authors: F
authors: F
authors: Oruç
mesh_terms: D000293:Adolescent; D000328:Adult; D016022:Case-Control Studies; D004943:Esophagogastric Junction / Q000000981:diagnostic imaging* / Q000473:pathology; D005260:Female; D005764:Gastroesophageal Reflux / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011446:Prospective Studies; D012372:ROC Curve; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography; D055815:Young Adult