Nalecz Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland.
Diabetes Technol Ther. 2011 Nov;13(11):1101-7. doi: 10.1089/dia.2011.0082. Epub 2011 Jul 13.
Diabetic foot ulcer area is a basic parameter used for monitoring the wound healing and effectiveness of the treatment applied. TeleDiaFoS (developed earlier in collaboration with the Department and Clinic of Gastroenterology and Metabolic Diseases, Medical University of Warsaw, Warsaw, Poland) is one of just a few systems available that make possible monitoring of the wound size remotely based on the foot scans transmitted to the physician from a patient's home. The aim of this study was to compare the diabetic foot ulcer areas measured using TeleDiaFoS with the results obtained using three reference methods.
The reference measurements were conducted using the elliptical method with a ruler, the wound tracing method and planimetrics with the Visitrak (Smith & Nephew, London, UK) system, and the pattern-coded structured light method with the Silhouette (ARANZ Medical, Christchurch, New Zealand) system. Regression and Bland-Altman analyses were performed. The study group consisted of 23 diabetes patients with plantar foot ulcers.
Thirty-three wounds were successfully examined. The measurement method influenced the measured area significantly (P=0.00005). The correlation coefficients between TeleDiaFoS and the ruler, Visitrak, and Silhouette methods were 0.949, 0.985, and 0.987, and the limits of agreement equaled -1.3±5.5 cm(2), -0.4±2.2 cm(2), and -0.6±2.1 cm(2), respectively. The strong linear relationships obtained can be used to convert the wound area measured with TeleDiaFoS to the corresponding value of each of the reference methods.
The results indicate that the wound area of plantar ulcers in diabetes might be monitored effectively using the TeleDiaFoS system based on the foot scans that the patient can produce at home with no assistance of other persons.
糖尿病足溃疡面积是监测伤口愈合和治疗效果的基本参数。TeleDiaFoS（早些时候与波兰华沙医科大学胃肠病学和代谢疾病系和诊所合作开发）是为数不多的可实现远程监测的系统之一，它可以基于从患者家中传输给医生的脚部扫描来远程监测伤口大小。本研究的目的是比较 TeleDiaFoS 测量的糖尿病足溃疡面积与使用三种参考方法获得的结果。
使用直尺的椭圆法、伤口追踪法和 Visitrak（Smith & Nephew，伦敦，英国）系统的平面测量法以及 Silhouette（ARANZ Medical，克赖斯特彻奇，新西兰）系统的图案编码结构光法进行参考测量。进行了回归和 Bland-Altman 分析。研究组包括 23 例足底溃疡的糖尿病患者。
成功检查了 33 个伤口。测量方法对测量面积有显著影响（P=0.00005）。TeleDiaFoS 与直尺、Visitrak 和 Silhouette 方法的相关系数分别为 0.949、0.985 和 0.987，一致性界限分别为-1.3±5.5cm(2)、-0.4±2.2cm(2)和-0.6±2.1cm(2)。获得的强线性关系可用于将 TeleDiaFoS 测量的伤口面积转换为每个参考方法的相应值。
结果表明，使用 TeleDiaFoS 系统基于患者在家中无需他人协助即可生成的脚部扫描，可以有效地监测糖尿病患者的足底溃疡面积。
