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精确度,一致性和准确性的比较两个扫描源光学一致性断层扫描生物仪
Mercè Guarro1,2, Meritxell Vázquez1, Juan Carlos Díaz1,2
1OMIQ Research, 08205 Barcelona, Spain.
Diagnostics (Basel, Switzerland)
|November 9, 2024
概括
这项研究比较了两个扫描源光学连贯性断层扫描 (SS-OCT) 生物仪,Argos®和Eyestar 900®,用于轴长度 (AL) 测量. 虽然差异在临床上是可以忽略不计的,但对于非常短或很长的眼睛,这些设备是不可互换的.
科学领域:
- 眼科医生 眼科 眼科
- 医疗器械 医疗器械
- 生物识别仪表是如何使用的
背景情况:
- 精确的轴长度 (AL) 测量对于白内障手术中的眼内透镜 (IOL) 功率计算至关重要.
- 扫描源光学连贯断层扫描 (SS-OCT) 生物仪为AL测量提供了先进的技术.
- 将不同SS-OCT设备进行比较对于了解其临床适用性至关重要.
研究的目的:
- 为了比较Argos®和Eyestar 900® SS-OCT生物计之间的轴长度 (AL) 测量的精度,一致性和准确性.
- 为了评估这两种生物识别设备的临床互换性.
主要方法:
- 在西班牙巴塞罗那接受白内障手术的107只眼睛的前性评估.
- 随机,连续的AL测量使用Argos®和Eyestar 900®SS-OCT生物仪.
- 分析包括差异中位数,布兰德-阿尔特曼图,95%一致度极限 (LoAs),可重复性 (Sw),失败测量和折射结果.
主要成果:
- 平均AL差异 (Argos®-Eyestar 900®) 是-0.01毫米 (p=0.01),其中95%的LoAs为-0.11到+0.08毫米.
- 这两种设备都显示出高精度,没有失败的AL测量 (0%).
- 96.1%的眼睛在手术后达到±0.50 D的结果,100%在±1.00 D的范围内.
结论:
- 阿戈斯®和Eyestar 900® SS-OCT生物仪在AL测量中显示了统计学上显著但临床上可以忽略不计的差异.
- 由于不同的测量原理,这些设备在非常短或非常长的眼睛中用于AL测量是不可互换的.
- 这两种生物计在一般白内障手术患者中为IOL功率计算提供了高精度.
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