Reliability of RTVue, Visante, and Slit-Lamp Adapted Ultrasonic Pachymetry for Central Corneal Thickness Measurement
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Purpose: To evaluate reliability of Fourier-domain optical coherence tomography (OCT) (RTVue), time-domain OCT (Visante), and slit-lamp adapted ultrasonic pachymetry (SL-US) in the measurement of central corneal thickness (CCT). Materials and Methods: Thirty healthy volunteers visited our clinic 3 times and fifty eyes were measured by one physician. RTVue and Visante were randomly performed, and then SL-US, in which the ultrasound probe was inserted into the Goldmann tonometry mount, was done. During the second visit, each measurement was repeated 3 times. Measurements on the second visit were averaged,and agreement among the instruments was investigated with Bland-Altman plots. Results: RTVue showed smaller repeatability coefficient than Visante and SL-US (4.7, 8.3, and 7.7 μm, respectively). Intersession reproducibility of RTVue and Visante was worse than their repeatability. CCT of RTVue was estimated to be maximally different by 11.8 μm from CCT of Visante and 8.8 μm from CCT of SL-US. The repeatability coefficient of SL-US was 7.7 μm and its reproducibility was similar to the repeatability. Conclusion: CCT measured by RTVue showed good reliability and generally agreed with Visante and SL-US. SL-US was as reliable as triple touching conventional US even with a single touch on the cornea.
Abstract
Purpose: To evaluate reliability of Fourier-domain optical coherence tomography (OCT) (RTVue), time-domain OCT (Visante), and slit-lamp adapted ultrasonic pachymetry (SL-US) in the measurement of central corneal thickness (CCT). Materials and Methods: Thirty healthy volunteers visited our clinic 3 times and fifty eyes were measured by one physician. RTVue and Visante were randomly performed, and then SL-US, in which the ultrasound probe was inserted into the Goldmann tonometry mount, was done. During the second visit, each measurement was repeated 3 times. Measurements on the second visit were averaged,and agreement among the instruments was investigated with Bland-Altman plots. Results: RTVue showed smaller repeatability coefficient than Visante and SL-US (4.7, 8.3, and 7.7 μm, respectively). Intersession reproducibility of RTVue and Visante was worse than their repeatability. CCT of RTVue was estimated to be maximally different by 11.8 μm from CCT of Visante and 8.8 μm from CCT of SL-US. The repeatability coefficient of SL-US was 7.7 μm and its reproducibility was similar to the repeatability. Conclusion: CCT measured by RTVue showed good reliability and generally agreed with Visante and SL-US. SL-US was as reliable as triple touching conventional US even with a single touch on the cornea.
참고문헌 (32)
- Doughty MJ, "Human corneal thickness and its impact on intraocular pressure measures: a review and meta-analysis approach", Surv Ophthalmol, 44, pp.367~408 (2000)
- Higginbotham EJ, "The Ocular Hypertension Treatment Study: topical medication delays or prevents primary open-angle glaucoma in African American individuals", Arch Ophthalmol, 122, pp.813~820 (2004)
- Chihara E., "Assessment of true intraocular pressure: the gap between theory and practical data", Surv Ophthalmol, 53, pp.203~218 (2008)
- Hyun Sung Leem, "Central Corneal Thickness and Corneal Endothelial Cell Changes Caused by Contact Lens Use in Diabetic Patients", Yonsei Medical Journal, 52(2), pp.322~325 (2011), 연세대학교의과대학
- Ashwin PT, "Collagen cross-linkage: a comprehensive review and directions for future research", Br J Ophthalmol, 94, pp.965~970 (2010)
- Nam SM, "Comparison of corneal thickness after the instillation of topical anesthetics - Proparacaine versus oxybuprocaine", CORNEA, 25, pp.51~54, LIPPINCOTT WILLIAMS & WILKINS
- Li H, "Comparative study of central corneal thickness measurement with slit-lamp optical coherence tomography and visante optical coherence tomography", Ophthalmology, 115, pp.796~801 (2008)
- Mohamed S, "Repeatability and reproducibility of pachymetric mapping with Visante anterior segment-optical coherence tomography", Invest Ophthalmol Vis Sci, 48, pp.5499~5504 (2007)
- Huang D, "Optical coherence tomography", Science, 254, pp.1178~1181 (1991)
- Kaluzny BJ, "Spectral optical coherence tomography: a novel technique for cornea imaging", Cornea, 25, pp.960~965 (2006)
- Muscat S, "Repeatability and reproducibility of corneal thickness measurements by optical coherence tomography", Invest Ophthalmol Vis Sci, 43, pp.1791~1795 (2002)
- "Reliablity (statistics)"[URL]
- "International vocabulary of metrology - Basic and general concepts and associated terms (VIM)" (2008)[URL]
- JM, "Measurement error", BMJ, 313, pp.744~ (1996)
- Bland JM, "Statistical methods for assessing agreement between two methods of clinical measurement", Lancet, 1, pp.307~310 (1986)
- Bland JM, "Agreement between methods of measurement with multiple observations per individual", J Biopharm Stat, 17, pp.571~582 (2007)
- "What is the standard error of the within-subject standard deviation, sw?"[URL]
- Bland JM, "Measurement error proportional to the mean", BMJ, 313, pp.106~ (1996)
- "Reliability Analysis"[URL]
- Realini T, "Measuring central corneal thickness with ultrasound pachymetry", Optom Vis Sci, 80, pp.437~439 (2003)
- Brandt JD, "Central corneal thickness in the Ocular Hypertension Treatment Study (OHTS)", Ophthalmology, 108, pp.1779~1788 (2001)
- Miglior S, "Intraobserver and interobserver reproducibility in the evaluation of ultrasonic pachymetry measurements of central corneal thickness", Br J Ophthalmol, 88, pp.174~177 (2004)
- O’Donnell C, "Agreement and repeatability of central thickness measurement in normal corneas using ultrasound pachymetry and the OCULUS Pentacam", Cornea, 24, pp.920~924 (2005)
- Lackner B, "Repeatability and reproducibility of central corneal thickness measurement with Pentacam, Orbscan, and ultrasound", Optom Vis Sci, 82, pp.892~899 (2005)
- Amano S, "Comparison of central corneal thickness measurements by rotating Scheimpflug camera, ultrasonic pachymetry, and scanning- slit corneal topography", Ophthalmology, 113, pp.937~941 (2006)
- Prydal JI, "Study of human precorneal tear film thickness and structure using laser interferometry", Invest Ophthalmol Vis Sci, 33, pp.2006~2011 (1992)
- Prospero Ponce CM, "Central and peripheral corneal thickness measured with optical coherence tomography, Scheimpflug imaging, and ultrasound pachymetry in normal, keratoconus-suspect, and post-laser in situ keratomileusis eyes", J Cataract Refract Surg, 35, pp.1055~1062 (2009)
- Zhao PS, "Comparison of central corneal thickness measurements by visante anterior segment optical coherence tomography with ultrasound pachymetry", Am J Ophthalmol, 143, pp.1047~1049 (2007)
- Chen S, "Measurement of central corneal thickness by high-resolution Scheimpflug imaging, Fourier-domain optical coherence tomography and ultrasound pachymetry", Acta Ophthalmol (2010)
- Huang JY, "Intra-examiner repeatability and agreement of corneal pachymetry map measurement by time-domain and Fourier-domain optical coherence tomography", Graefes Arch Clin Exp Ophthalmol, 248, pp.1647~1656 (2010)
- Nam SM, "Accuracy of RTVue optical coherence tomography, Pentacam, and ultrasonic pachymetry for the measurement of central corneal thickness", Ophthalmology, 117, pp.2096~2103 (2010)
- Prakash G, "Comparison of fourier-domain and time-domain optical coherence tomography for assessment of corneal thickness and intersession repeatability", Am J Ophthalmol, 148, pp.282~290 (2009)