빛간섭단층촬영으로 발견하지 못한 국소적 망막신경섬유층 결손들의 분석

• 영문명: Analysis of Localized Retinal Nerve Fiber Layer Defects not Detected by Optical Coherence Tomography
• 발행기관: 대한안과학회
• 저자명: 한영상 제승연 김수진 이주은 이지은 구기홍,Young Sang Han, MD, Seung Youn Jea, MD, PhD, Su Jin Kim, MD,
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume50,number4, 558~564쪽, 전체 7쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2009.04.30

영문 초록

Purpose: To analyze localized RNFL defect cases that were identified in retinal nerve fiber layer (RNFL) fundus photographs but not in optical coherence tomography (OCT). Methods: Analysis of OCT scans and images was performed for 14 eyes (17 locations) that showed localized RNFL defects in RNFL fundus photographs but not in RNFL thickness average analysis. Results: With respect to the range of RNFL defects, 41.2% were less than 10°, 47.0% were 11 to 20°, and 11.8% were 21 to 30°. In 71.4% of the RNFL cases the defects were less than 10°and the decrease of RNFL thickness was not readily observable on the OCT scan images. In all cases of RNFL defects in the 11 to 30°range the decrease in RNFL thickness could be assessed on the OCT scan images. Nonetheless, the decrease of RNFL thickness could not be seen on the OCT analysis images in which the results of the RNFL thickness made through an automated computer algorithm were displayed. Conclusions: The range of localized RNFL defects that were difficult to detect with OCT consisted of those cases that were almost less than 20°. The limitations of the OCT scan itself in patients with RNFL with an angular width defect less than 10°and the problems of RNFL thickness analysis processing in patients with an angular width of 11 to 30°may decrease the sensitivity of OCT in diagnosing RNFL defects. J Korean Ophthalmol Soc 2009;50(4):558-564

키워드

Optical coherence tomography, RNFL defect, RNFL fundus photograph