title: Celiac axis stenosis: incidence and etiologies in asymptomatic individuals.
abstract: OBJECTIVE
  To determine the incidence and etiologies of celiac axis stenosis in asymptomatic individuals.
  
  
  METHODS
  This prospective study involved 400 consecutive patients (male: 319, female: 81) referred to us for celiac arteriography between April and July 1999. When celiac axis branches were opacified by collateral circulation during superior mesenteric arteriography, the presence of celiac axis stenosis was suspected; lateral projection celiac arteriography was performed and the pressure gradient was measured. The indicators used to determine whether or not celiac axis stenosis was significant were luminal narrowing of more than 50% and a resultant pressure gradient of at least 10 mmHg. Its etiology was determined on the basis of angiographic appearances and CT findings.
  
  
  RESULTS
  Twenty-nine patients (7.3%) had celiac axis stenosis. The etiology of the condition was extrinsic compression due to the median arcuate ligament in 16 patients (55%) and atherosclerosis in three (10%), while in ten (35%) it was not determined. The incidence of celiac axis stenosis did not vary significantly according to sex, age and the presence of calcified aortic plaque representing atherosclerosis.
  
  
  CONCLUSIONS
  The incidence of hemodynamically significant celiac axis stenosis in this asymptomatic Korean population was 7.3% and the most important etiology was extrinsic compression by the median arcuate ligament of the diaphragm. Atherosclerosis was only a minor cause of the condition.
authors.affiliation: Department of Radiology, Seoul National University College of Medicine, Seoul, Korea.
authors.forename: C M
authors.initials: CM
authors.lastname: Park
authors.forename: J W
authors.initials: JW
authors.lastname: Chung
authors.forename: H B
authors.initials: HB
authors.lastname: Kim
authors.forename: S J
authors.initials: SJ
authors.lastname: Shin
authors.forename: J H
authors.initials: JH
authors.lastname: Park
mesh_terms: D000792:Angiography; D002445:Celiac Artery; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000453:epidemiology / Q000209:etiology; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D016491:Peripheral Vascular Diseases / Q000000981:diagnostic imaging* / Q000453:epidemiology / Q000209:etiology; D011446:Prospective Studies; D014057:Tomography, X-Ray Computed