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目的 :对间接与直接方式数字式X线影像质量及图像处理前后 ,数字式X线影像质量进行对比性研究。方法 :以主观评价指标为手段 ,采用盲法设计对间接与直接方式获得的 2 8组数字式X线影像的质量进行了对比。结果 :获得了各种测试指标的主观评分及排序。结论 :由间接方式获得的数字式X线影像清晰度的评分要高于直接方式获得的数字式X线影像 ,图像处理技术在提高间接数字式X线影像质量上有一定的作用。
Objective: To compare the digital X-ray image quality of indirect and direct digital radiography before and after digital radiography. Methods: Subjective evaluation index was used as a means to compare the quality of 28 digital X-ray images obtained by indirect and direct methods by using blind design. Results: Subjective scores and rankings for various test indicators were obtained. Conclusion: The score of digital X-ray image obtained by indirect method is higher than that of direct X-ray image. Image processing technique plays an important role in improving the quality of indirect digital X-ray image.