Comparison of actual psoriasis surface area and the psoriasis area and severity index by the human eye and machine vision methods in following the treatment of psoriasis.
Comparison of actual psoriasis surface area and the psoriasis area and severity index by the human eye and machine vision methods in following the treatment of psoriasis.
复制标题
银屑病治疗后实际银屑病表面积与人眼和机器视觉方法的银屑病面积和严重程度指数的比较。
DOI：
10.1080/000155598442818
复制
发表时间：
1998
影响因子：
3.6
通讯作者：
A. Oikarinen
中科院分区：
文献类型：
--
作者：
L. Savolainen;J. Kontinen;E. Alatalo;J. Röning;A. Oikarinen
缺乏定量的方法来评估银屑病的严重程度，在皮肤科质量控制的问题。量化评估受累表面积是重要的，如银屑病面积和严重程度指数（PASI），但许多方法的可靠性较差。本研究的目的是评估15例银屑病患者的参与表面积之前和之后不同的抗银屑病治疗使用人眼的方法和计算机图像分析（CIA）系统的基础上颜色分割。将人眼评估与CIA系统的结果进行比较，并比较对PASI评分的影响。人眼估计值高于CIA方法获得的值，因此，人眼方法的PASI值也高于CIA方法。在PASI低于15的情况下，人眼估计值差异最大。治疗前后人眼法PASI的变化与CIA法的变化有显着差异。CIA系统提供了量化银屑病患者实际表面的可能性，并将成为评价不同治疗效果时开发质量控制的替代方案。
The lack of a quantitative method for assessing psoriasis severity poses a problem for quality control in dermatology. Quantitative estimation of involved surface area is important, as in the psoriasis area and severity index (PASI), but the reliability of many methods is poor. The purpose of this study was to assess the involved surface area of 15 psoriasis patients before and after different anti-psoriasis treatments using the human eye method and a computer image analysis (CIA) system based on colour segmentation. The human eye assessments were compared with the results of the CIA system and the resulting effects on the PASI score were also compared. The human eye estimates were higher than those obtained by the CIA method and, as a consequence, the values of the PASI by the human eye method were also higher than those by CIA. The human eye estimates differed most in cases where the PASI was under 15. The changes in the PASI by the human eye method before and after treatments differed significantly from those by CIA. The CIA system offers a possibility to quantify actual surface in patients with psoriasis, and will be an alternative for developing quality control when evaluating different treatment efficacies.