시간영역과 스펙트럼영역 빛간섭단층촬영기의 황반두께 측정치 및 반복성의 비교

• 영문명: The Comparison of Macular Thickness Measurements and Repeatabilities Between Time Domain and Spectral Domain OCT
• 발행기관: 대한안과학회
• 저자명: 문성운 김응석 김영균 유승영 곽형우,Sung Woon Moon, MD, Eung Suk Kim, MD, Young Gyun Kim, MD, Seung Young Yoo, MD, PhD, Hyung Woo Kwak, MD, PhD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume50,number7, 1050~1059쪽, 전체 10쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2009.07.15

영문 초록

Purpose: To compare macular thickness measurements obtained from time domain optical coherence tomography (TD-OCT) and 2 spectral domain (SD) OCTs and to evaluate their repeatability and agreement in normal subjects and diabetic macular edema patients. Methods: Fifty-four healthy, normal subjects and 26 diabetic macular edema patients were participated in this study. In a randomly selected eye from each subject, two serial macular measurements were obtained from TD-OCT (Stratus OCT) and SD-OCTs (Cirrus HD-OCT, Spectralis HRA+OCT) by an experienced technician in random order. Nine areas of macular thickness map and repeatabilities obtained by the 3 OCTs were compared. Results: In relative repeatability, SD-OCT showed better results overall compared to TD-OCT. Macular thickness was greatest in the Spectralis HRA+OCT in both normal subjects and diabetic macular edema patients, followed by Cirrus HD-OCT and Stratus OCT. In normal subjects, regardless of the type of comparison between the machines there was a statistically significant difference in all 9 areas. Conclusions: While the TD-OCT and the 2 SD-OCTs are reliable for macular thickness measurement, SD-OCT has better measurement repeatability compared with TD-OCT. Because macular measurements obtained from the 3 OCT systems cannot be interchanged, an effort should be made to standardize the measurement of each system.

키워드

Macular thickness measurement, Repeatability, Spectral-domain OCT, Time-domain OCT