4가지 접촉식 초음파를 이용한 생체계측 시 백내장수술 후굴절력 예측의 비교
Comparison of Ocular Biometry Measured Using Four Applanation Ultrasonographic Biometry Devices
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목적: 4가지 접촉식 초음파 방식(A-scan) 생체계측 장비를 이용하여 얻은 계측치를 비교하고, 백내장수술 후 굴절력 예측의 정확성을비교하고자 하였다. 대상과 방법: 백내장 수술이 계획된 60명 60안을 대상으로 4가지 접촉식 초음파 방식 생체계측계, Aviso®, Hi-Scan®, UD-6000®,P37-II®를 이용하여 안축장을 측정하였다. 자동굴절검사(Topcon KR 8000)로 측정된 각막 굴절력을 대입하여 SRK/T 공식을 이용하여 예상 굴절력을 계산하였다. 술 후 2개월째 현성 굴절검사를 시행하여 얻어진 술 후 실제 굴절력의 구면렌즈 대응치와 각 기기들이예측한 수술 후 굴절력을 비교하였다. 결과: 수술 전 측정된 안축장의 평균은 Aviso®, Hi-Scan®, UD-6000®, P37-II®에서 각각 23.52 ± 1.45, 23.51 ± 1.04, 23.54 ± 1.58,23.52 ± 1.38 mm로 통계적으로 유의한 차이를 보이지 않았다(p=0.92). 술 후 굴절력의 평균 절대오차(MAE)는 0.41 ± 0.32, 0.40± 0.30, 0.36 ± 0.26, 0.39 ± 0.26D이고, 평균 실제오차(MNE)는 0.39 ± 0.37, 0.36 ± 0.32, 0.26 ± 0.29, 0.38 ± 0.32D로통계적으로 유의한 차이를 보이지 않았다(p=0.90, p=0.81). 결론: 4가지 접촉식 초음파 방식 생체계측계의 측정치는 통계적으로 높은 일치도를 보였고, 술 후 예측오차에서도 통계적으로 차이가없었다.
Abstract
Purpose: To compare ocular biometry measured using 4 applanation ultrasonographic biometry devices and evaluate the accuraciesof the refractive outcomes after cataract surgery. Methods: A total of 60 eyes in 60 patients who received cataract surgery were included in the present study. The axial length wasmeasured using applanation ultrasonographic biometry devices (Aviso®, Hi-Scan®, UD-6000®, P37-II®). Additionally, keratometrywas measured using an autokeratometer (Topcon KR 8000) and the SRK/T formula was used to calculate intraocularlens (IOL) power. Two months after cataract surgery, the refractive outcome was determined, and results from the 4 different applanationultrasonographic biometry devices were compared. Results: Axial lengths were 23.52 ± 1.45 mm, 23.51 ± 1.04 mm, 23.54 ± 1.58 mm, and 23.52 ± 1.38 mm measured using Aviso®,Hi-Scan®, UD-6000®, and P37-II®, respectively with no statistically significant differences observed (p = 0.92). The mean absoluteerror (MAE) of the Aviso®, Hi-Scan®, UD-6000®, and P37-II® was 0.41 ± 0.32 diopter (D), 0.40 ± 0.30 D, 0.36 ± 0.26 D, and0.39 ± 0.26 D, respectively. The mean numerical error (MNE) was 0.39 ± 0.37 D, 0.36 ± 0.32 D, 0.26 ± 0.29 D, and 0.38 ± 0.32D, respectively. The differences between the 4 different applanation ultrasonographic biometry devices were not statistically significant(p = 0.90, p = 0.81). Conclusions: The ocular biometric measurements and prediction of postoperative refraction using Aviso®, Hi-Scan®, UD-6000®,P37-II® showed no significant differences.
참고문헌 (16)
- Olsen T, "Sources of error in intraocular lens power calculation", J Cataract Refract Surg, 18, pp.125~129 (1992)
- Holzer MP, "Accuracy of a new partial coherence interferometry analyser for biometric measurements", Br J Ophthalmol, 93, pp.807~810 (2009)
- Lam AK, "The repeatability and accuracy of axial length and anterior chamber depth measurements from the IOLMaster", Ophthalmic Physiol Opt, 21, pp.477~483 (2001)
- Freeman G, "The impact of cataract severity on measurement acquisition with the IOLMaster", Acta Ophthalmol Scand, 83, pp.439~442 (2005)
- Tehrani M, "Evaluation of the practicality of optical biometry and applanation ultrasound in 253eyes", J Cataract Refract Surg, 29, pp.741~746 (2003)
- Németh J, "Optical and ultrasound measurement of axial length and anterior chamber depth for intraocular lens power calculation", J Cataract Refract Surg, 29, pp.85~88 (2003)
- Olsen T, "The accuracy of ultrasonic determination of axial length in pseudophakic eyes", Acta Ophthalmol(Copenh), 67, pp.141~144 (1989)
- Connors R 3rd, "Accuracy and reproducibility of biometry using partial coherence interferometry", J Cataract Refract Surg, 28, pp.235~238 (2002)
- Kielhorn I, "Clinical assessment of the Zeiss IOLMaster", J Cataract Refract Surg, 29, pp.518~522 (2003)
- Hennessy MP, "Contact versus immersion biometry of axial length before cataract surgery", J Cataract Refract Surg, 29, pp.2195~2198 (2003)
- 임재원, "안축장 측정을 위한 접촉성 및 침수성 초음파 생체계측법의 비교", 대한안과학회지, 50(12), pp.1795~1799 (2009), 대한안과학회
- Binkhorst RD, "The accuracy of ultrasonic measurement of the axial length of the eye", Ophthalmic Surg, 12, pp.363~365 (1981)
- Wirtitsch MG, "Effect of haptic design on change in axial lens position after cataract surgery", J Cataract Refract Surg, 30, pp.45~51 (2004)
- 김성인, "AL-ScanⓇ을 이용한 술 전 안구생체계측과 백내장수술 후 굴절력 예측의 정확성", 대한안과학회지, 54(11), pp.1688~1693 (2013), 대한안과학회
- 신정아, "접촉식 초음파와 부분결합간섭계를 이용한 생체계측시 백내장수술 후 굴절력 예측의 비교", 대한안과학회지, 54(5), pp.723~727 (2013), 대한안과학회
- 곽주영, "초음파와 두 가지 부분결합간섭계를 이용한 안구의 생체 계측 비교", 대한안과학회지, 52(2), pp.169~174 (2011), 대한안과학회