开发一种用于检测青光眼性视野缺损的新型全自动动力学算法（程序k）。

Development of a new fully automated kinetic algorithm (program k) for detection of glaucomatous visual field loss.

作者信息

Hashimoto Shigeki, Matsumoto Chota, Okuyama Sachiko, Takada Sonoko, Arimura-Koike Eiko, Shimomura Yoshikazu

机构信息

Department of Ophthalmology, Kinki University Faculty of Medicine, Osaka-Sayama, Japan.

Department of Ophthalmology, Kinki University Faculty of Medicine, Sakai Hospital, Sakai, Japan.

出版信息

Invest Ophthalmol Vis Sci. 2015 Mar 5;56(3):2092-9. doi: 10.1167/iovs.14-16182.

DOI:10.1167/iovs.14-16182

PMID:25744980

Abstract

PURPOSE

In Program K, a new automated kinetic algorithm that we developed, the frequency distributions of the number of patients' response points were obtained for external angles to distinguish normal and abnormal isopters. We also assessed the agreement between the results of Program K and Goldmann manual kinetic perimetry (MKP).

METHODS

Program K detected abnormalities in isopters by using the external angles of patients' response points. In experiment 1, a normal external angle range and endpoint for the algorithm were determined by using visual field (VF) results of 100 data sets. In experiment 2, the results of Program K and Goldmann MKP were compared in 63 virtual patients. Visual field loss was assessed by using stimuli of V/4e, III/4e, I/4e, I/3e, I/2e, and I/1e at a speed of 3 deg/s. The isopters by Program K and Goldmann MKP were overlapped and the area of intersection was expressed as a percentage of the union area. The intersection percentages and test durations were evaluated.

RESULTS

A normal external angle range between 150° and 240° and phase 3 as the appropriate endpoint for the algorithm were determined. The intersection percentages for the six isopters were 84% (V/4e), 83% (III/4e), 78% (I/4e), 71% (I/3e), 60% (I/2e), and 50% (I/1e) (average, 71%). The average examination duration for Program K was 16.0 ± 3.2 minutes. The results of Program K and Goldmann MKP were comparable.

CONCLUSIONS

Program K is clinically efficient and useful for detection and evaluation of abnormalities in a kinetic VF.

摘要

目的

在我们开发的新自动动态算法程序K中，获取患者反应点数量的频率分布用于周边视野角度，以区分正常和异常等视线。我们还评估了程序K与戈德曼手动动态视野检查（MKP）结果之间的一致性。

方法

程序K通过使用患者反应点的周边视野角度检测等视线异常。在实验1中，利用100个数据集的视野（VF）结果确定算法的正常周边视野角度范围和终点。在实验2中，对63名虚拟患者比较了程序K和戈德曼MKP的结果。使用V/4e、III/4e、I/4e、I/3e、I/2e和I/1e的刺激，以3度/秒的速度评估视野缺损。将程序K和戈德曼MKP的等视线重叠，并将相交面积表示为并集面积的百分比。评估相交百分比和检查持续时间。

结果

确定了150°至240°的正常周边视野角度范围以及第3阶段作为算法的合适终点。六个等视线的相交百分比分别为84%（V/4e）、83%（III/4e）、78%（I/4e）、71%（I/3e）、60%（I/2e）和50%（I/1e）（平均为71%）。程序K的平均检查持续时间为16.0±3.2分钟。程序K和戈德曼MKP的结果具有可比性。