시신경유두직경에 대한 유두연-황반오목거리의 비를 이용한 시신경유두 크기 평가의 예측력

• 영문명: The Ability of Disc-to-Fovea Distance to Disc-Diameter Ratio to Estimate Optic Disc Size
• 발행기관: 대한안과학회
• 저자명: 유현규 안재홍 이마빈,Hyun Gyu Yoo, MD, Jae Hong Ahn, MD, PhD, Mar Vin Lee, MD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume54,number6, 913~918쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2013.06.15

영문 초록

Purpose: To investigate the usefulness of the measurement of disc-to-fovea distance to disc-diameter ratio (DF/DD ratio) in detecting large and small discs. Methods: A total of 300 randomly selected subjects were included in the present study. All patients underwent stereoscopic disc photography and DF/DD ratio, which is the shortest distance between disc margin and fovea divided by mean disc diameter was determined by planimetry. The diagnostic accuracy of DF/DD ratio was evaluated using areas under the receiver operating characteristics curves (AUCs), sensitivity, and specificity. Results: No significant differences in disc-to-fovea distance were observed among small and large disc groups. The DF/DD ratio was significantly lower in subjects with large discs (1.74 ± 0.27) compared with subjects with small discs (2.70 ± 0.15). AUCs of the DF/DD ratio were 0.942 and 0.947 in detecting large and small discs, respectively. In detecting disc size by a fixed DF/DD ratio of 2.0, sensitivity was 100% for both large and small discs, and specificity was 70.1% and 40.9% for the large and small discs, respectively. Conclusions: The DF/DD ratio may be a simple and useful clinical aid in detecting large and small discs. The 2.0 fixed DF/DD ratio, showed 100% sensitivity in detecting both large and small discs, although medium discs may be misdiagnosed as small discs more often than as large discs.

키워드

Disc diameter, Disc-to-fovea distance, Optic disc size, Stereoscopic disc photography