An improved method to estimate frequency of false positive answers in computerized perimetry.
An improved method to estimate frequency of false positive answers in computerized perimetry.
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一种估计计算机视野检查中误报频率的改进方法。
DOI：
10.1111/j.1600-0420.1997.tb00120.x
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发表时间：
2009
期刊：
影响因子：
--
通讯作者：
H. Rootzén
中科院分区：
文献类型：
--
作者：
J. Olsson;B. Bengtsson;A. Heijl;H. Rootzén
患者在静态计算机视野检查中表现的可靠性对于评价结果很重要。假阳性回答往往会错误地增加测量的阈值灵敏度。假阳性反应的频率传统上是通过在测试中增加额外的问题来测量的。由于时间限制，渔获试验很少而且有限，导致估计数不准确。我们开发了一种改进的方法来估计假阳性答案，利用现有的信息，在目前普通的计算机视野测试，而不增加测试时间。我们在这里描述的方法，并评估它在前瞻性收集的材料的49青光眼眼的49例患者。结果表明，与传统的渔获试验方法相比，新方法大大降低了测量误差。与传统的渔获试验方法相比，新方法的重测变化仅为一半。此外，它可以通过消除使用捕获试验来估计假阳性响应的频率来减少测试时间。
Reliability of patient performance in static computerized perimetry is important for evaluation of results. False positive answers tend to falsely increase measured threshold sensitivity. The frequency of false positive responses is traditionally measured by adding extra questions, catch trials, to the test. Catch trials are few and limited because of time constraints, leading to inexact estimates. We developed an improved method for estimation of false positive answers by using information already available in current ordinary computerized visual field testing, without increasing test time. We here describe the method and evaluate it in a prospectively collected material of 49 glaucoma eyes of 49 patients. The results show that the new method reduces measurement errors considerably and significantly as compared with the traditional catch trials method. Test-retest change was only half with the new method as compared to the traditional method of catch trials. Furthermore, it can reduce test time by eliminating the need to use catch trials to estimate the frequency of false positive responses.
视野结果在重复测试中的可靠性。
影响因子：
13.7
作者：
Katz,J;Sommer,A;Witt,K
通讯作者：
Witt,K