不同方法测量不规则瘢痕面积的比较

Comparision of Different Methods of Area Measurement in Irregular Scar

目的对比不同测量方法在测量不规则瘢痕面积时的优缺点,以确定不规则瘢痕面积测量标准。方法对不规则瘢痕面积进行数字化扫描,运用坐标纸读取法、Auto CAD像素法、Photoshop套索像素法、Photoshop魔棒填充像素法及福昕PDF阅读软件测量法进行测量,从测量时间、可重复性、是否可以全程记录及是否可以溯源等方面进行比较分析。结果采用上述瘢痕面积测量方法的结果差异无统计学意义,但在测量时间、同一人多次重复性及多人测量可重复性上差异存在统计学意义,仅福昕PDF阅读软件可以溯源。结论上述方法均可应用于瘢痕测量,但是各有利弊,还需针对司法鉴定开发新的测量软件。

Objective To determine a measurement standard of irregular scar area by comparing the advantages and disadvantages of different measurement methods in measuring same irregular scar area.Methods Irregular scar area was scanned by digital scanning and measured by coordinate reading method, Auto CAD pixel method, Photoshop lasso pixel method, Photoshop magic bar filled pixel method and Foxit PDF reading software, and some aspects of these methods such as measurement time, repeatability, whether could be recorded and whether could be traced were compared and analyzed. Results There was no significant difference in the scar areas by the measurement methods above. However,there was statistical difference in the measurement time and repeatability by one or multi performers and only Foxit PDF reading software could be traced back. Conclusion The methods above can be used for measuring scar area, but each one has its advantages and disadvantages. It is necessary to develop new measurement software for forensic identification.