[Clinical significance of Doppler sonography in the diagnosis of anterior ischemic optic neuropathy].
The authors measured the PK (peak frequency with Doppler sonography in 52 patients of anterior ischemic optic neuropathy AION), 16 patients of oculovascular disease (OVD), and 371 normal subjects. The age ranged from 21 to 62 years in the patients, and 10 to 83 years in the normals. The arterial segments examined were of the bilateral common carotid arteries (CCA) and internal carotid arteries (ICA), totalling 272 segments in the patients and 1,484 in the normals, with the findings that the rate of carotid stenosis in AION was higher than in OVD, and carotid stenosis was observed in 75% of CCA and 91% of ICA in patients under the age of 30 years, significantly higher than in elder age groups. This provides a basis for the definite diagnosis of AION in patients under 30 years old.
Song
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Ophthalmic Center of PLA, Beijing.
D000293:Adolescent; D000328:Adult; D001783:Blood Flow Velocity; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging*; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging; D002648:Child; D005260:Female; D006801:Humans; D007511:Ischemia / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D009900:Optic Nerve / Q000098:blood supply*; D009901:Optic Nerve Diseases / Q000000981:diagnostic imaging*; D012016:Reference Values; D014463:Ultrasonography