论文部分内容阅读
目的应用图像变换技术与图像定量分析技术有选择地结合起来进行Ｂ超临床诊断，探讨对急性肝炎的诊断价值。方法通过对２５幅正常人肝脏及１８幅急性肝炎的超声图像先进行窗口灰阶变换后进行纹理参数分析，将其结果与单纯地进行纹理分析的结果加以比较。结果未经窗口变换的正常肝与肝炎肝的同一种参数的均值接近，均方差较大；经过窗口变换后它们均值的差异增大，均方差减小。结论应用图像变换技术与定量分析相结合的方法对急性肝炎声像图有明显的诊断价值。
Objective To evaluate the diagnostic value of acute hepatitis by using the technique of image transformation and quantitative analysis of images to combine B-level clinical diagnosis. Methods The gray parameters of gray scale of 25 normal subjects and 18 acute hepatitis patients were analyzed firstly, and then the texture parameters were compared. The results were compared with the results of simple textural analysis. Results The mean of the same parameter of normal liver and hepatitis liver without window transformation was close, and the mean square error was large. After the window transformation, the difference of their mean value increased and the mean square error decreased. Conclusion The method of combining image transformation and quantitative analysis has obvious diagnostic value for acute hepatitis.