两种不同光学相干断层扫描仪和Scheimpflug 相机测量的角度-角度距离与房水深度之间的一致性。
Agreement Between Angle-to-Angle Distance and Aqueous Depth Obtained With Two Different Optical Coherence Tomographers and a Scheimpflug Camera.
出版信息
J Refract Surg. 2021 Feb 1;37(2):133-140. doi: 10.3928/1081597X-20201013-01.
PURPOSE
To compare angle-to-angle (ATA) distance and aqueous depth (AQD) readings produced by two different optical coherence tomography (OCT) devices and a Scheimpflug camera.
METHODS
ATA distance and AQD were measured in 60 eyes using the Visante time-domain OCT (TD-OCT) (Carl Zeiss Meditec AG), the Anterion swept-source OCT (SS-OCT) (Heidelberg Engineering GmbH), and the Pentacam HR Scheimpflug camera (Oculus Optikgeräte GmbH). Moreover, ATA distance was measured along the horizontal and vertical meridians. Bland-Altman analysis was used to assess the agreement between devices.
RESULTS
All three devices did not yield similar horizontal ATA distance: 11.96 ± 0.47 mm (TD-OCT), 11.96 ± 0.42 mm (SS-OCT), and 11.05 ± 0.52 mm (Pentacam). More specifically, the Pentacam yielded significantly smaller values (approximately 0.9 mm, P < .001). Mean vertical ATA distance was 12.61 ± 0.65 and 12 ± 0.65 mm for the TD-OCT and SS-OCT, respectively (P = .983). Vertical ATA distance was significantly larger than horizontal ATA distance for both OCT devices (approximately 0.6 mm, P < .001). The lowest mean difference was found between both OCT devices (0.0068 and -0.0415 mm, for horizontal and vertical meridians, respectively) and the highest between the Pentacam and the two OCT devices (approximately 0.9 mm). As for AQD, inter-device mean values were also statistically significant: 2.89 ± 0.48, 2.82 ± 0.49, and 2.79 ± 0.50 mm, for the TD-OCT, SS-OCT, and Pentacam, respectively (P < .001). Mean differences were similar for the TD-OCT versus SS-OCT and SS-OCT versus Pentacam (approximately 0.02 mm), and larger between the TD-OCT and Pentacam (approximately 0.05 mm).
CONCLUSIONS
The results show that the TD-OCT and SS-OCT are interchangeable instruments for ATA distance measurement but the Pentacam is not with either of the two OCT devices. A clinical criterion should assess whether these three devices could be used interchangeably for AQD measurement. [J Refract Surg. 2021;37(2):133-140.].
目的
比较两种不同的光学相干断层扫描（OCT）设备和 Scheimpflug 相机的角对角（ATA）距离和房水深度（AQD）读数。
方法
使用 Visante 时域 OCT（TD-OCT）（卡尔蔡司 Meditec AG）、Anterion 扫频源 OCT（SS-OCT）（海德堡工程有限公司）和 Pentacam HR Scheimpflug 相机（Oculus Optikgeräte GmbH）测量 60 只眼的 ATA 距离和 AQD。此外，ATA 距离沿水平和垂直子午线进行测量。Bland-Altman 分析用于评估设备之间的一致性。
结果
三种设备的水平 ATA 距离均不相似：11.96 ± 0.47 mm（TD-OCT）、11.96 ± 0.42 mm（SS-OCT）和 11.05 ± 0.52 mm（Pentacam）。更具体地说，Pentacam 产生的数值显著较小（约 0.9 mm，P <.001）。TD-OCT 和 SS-OCT 的平均垂直 ATA 距离分别为 12.61 ± 0.65 和 12 ± 0.65 mm（P =.983）。垂直 ATA 距离明显大于两种 OCT 设备的水平 ATA 距离（约 0.6 mm，P <.001）。两种 OCT 设备之间的平均差异最小（0.0068 和 -0.0415 mm，分别用于水平和垂直子午线），Pentacam 与两种 OCT 设备之间的差异最大（约 0.9 mm）。对于 AQD，设备间的平均值也具有统计学意义：2.89 ± 0.48、2.82 ± 0.49 和 2.79 ± 0.50 mm，分别用于 TD-OCT、SS-OCT 和 Pentacam（P <.001）。TD-OCT 与 SS-OCT 以及 SS-OCT 与 Pentacam 之间的平均差异相似（约 0.02 mm），而 TD-OCT 与 Pentacam 之间的差异较大（约 0.05 mm）。
结论
结果表明，TD-OCT 和 SS-OCT 可互换用于 ATA 距离测量，但 Pentacam 与两种 OCT 设备均不兼容。临床标准应评估这三种设备是否可用于 AQD 测量的互换性。[J Refract Surg. 2021;37(2):133-140.]。
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