Consistent analysis of swept-source optical coherence tomography and time-domain optical coherence tomography in measuring the parameters of chamber angle of patients with myopia
10.3969/j.issn.1672-8270.2024.02.006
- VernacularTitle:扫频源光学相干断层扫描和时域光学相干断层扫描对近视患者房角参数测量的一致性分析
- Author:
Anhai WEI
1
,
2
;
Yangcheng ZOU
;
Li YANG
;
Zhenzhen CAO
;
Hehua ZHANG
Author Information
1. 陆军军医大学大坪医院医学工程科 重庆 400042
2. 重庆大学微电子与通信工程学院 重庆 400044
- Keywords:
Swept-source optical coherence tomography(SS-OCT);
Time-domain optical coherence tomography(TD-OCT);
Anterior chamber angle;
Myopic patients;
Consistency
- From:
China Medical Equipment
2024;21(2):28-32
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the consistency of swept-source optical coherence tomography(SS-OCT)and time-domain optical coherence tomography(TD-OCT)in measuring the parameters of anterior chamber angle.Methods:A total of 46 myopic patients(92 eyes)were retrospectively selected from Department of Ophthalmology of Army Specialty Medical Center from January 2023 to May 2023.Both SS-OCT and TD-OCT were used to measure respectively the parameters of anterior chamber angle of patients.And then,the differences of central anterior chamber depth(ACD),angle opening distance(AOD500,AOD750),scleral spur angle(SSA),trabecular iris area(TISA500,TISA750)between SS-OCT and TD-OCT were compared and analyzed.The Pearson correlation analysis and Bland-Altman test were adopted to analyze and measure the correlation and consistency of the measures.Results:There was significant difference in ACD between the two kinds of scan methods(t=-6.83,P<0.001).Additionally,the differences of the AOD500,AOD750,SSA500,TISA500 and TISA750 of measured data beside of nose were significant(t=-5.16,5.51,-6.51,-4.75,-5.69,P<0.001),respectively.Similarly,the differences of them beside of temple were significant(t=-5.04,-4.8,-6.06,-3.84,-4.02,P<0.001),respectively.There was positive correlation between the two kinds of scan methods(r=0.71-0.92).The Bland-Altman analysis showed that 2.1% to 8.9% of the measured values were outside the consistency limit by 95%.Conclusion:There are differences between SS-OCT and TD-OCT in the measures of the parameters of anterior chamber angle of myopic patients,and the measured results of them appear positive correlation.
