评价医用单色液晶显示器的不同分辨率对肺纹理 - 第三军医大学学报.docVIP

评价医用单色显示器的不同分辨率对肺纹理显示质量的影响 尹建东，张伟，郭启勇 中国医科大学附属盛京医院 辽宁 沈阳 110004 【摘要】目的：评价医用单色液晶显示器的不同分辨率对肺纹理显示质量的影响。方法：请放射线科3名助教、3名讲师、3名副教授或教授对93幅胸部DR影像图分别在三种不同分辨率的医用单色显示器（Barco Z-2261（空间分辨率1600×1200）、Barco Z-3620（空间分辨率2048×1536）、Barco Z-5620（空间分辨率2560×2048））上集中三次独立读图，观察重点为右肺中上野肺纹理。肺纹理显示质量的好坏采用3等分法：优、良和差，每个医师分别针对每个显示器上的每幅图像给出自己的信任等级。采用SPSS 11.5对结果进行统计分析。结果：各同年资的医师在不同分辨率的显示器上对肺纹理显示质量的的观测结果差异无统计学意义（P0.05）；不同年资的医师在2M或3M显示器上对肺纹理显示质量的观测结果比较差异无统计学意义（P0.05），而在5M显示器上高年资医师和中年资医师之间、高年资医师和低年资医师之间比较存在显著性差异（P值为0.004、0.035，均0.05）。结论：高年资的医师在5M显示器上能得到更多的影像信息；可采用低、中、高分辨率显示器相结合的诊断工作站系统；高年资的医师应使用高分辨率的显示器来完成终审，而中、低年资医师应在低或中分辨率的显示器上完成初审，通过显示器和医师之间的合理配置，在不降低识别能力的前提下，节约了资金，获得了较好的性价比。 【关键字】软阅读，肺纹理，分辨率, PACS Evaluate the influence of the resolution of medical grayscale display over the presentation of lung markings Yin Jian-dong,Zhang Wei,Guo Qi-yong Shengjing Hospital Of China Medical University ,Shenyang Liaoning 110004 【Abstract】Objective： Evaluate the influence of the resolution of medical grayscale LCD display over the presentation of lung markings.Method： Three teaching assistants,three instructors and three associate professors or professors interpreted 93 chest images by using diagnostic workstation of PACS with three types of displays:Barco Z-2261 with space resolution 1600×1200,Barco Z-3620 with space resolution 2048?536 and Barco Z-5620 with space resolution 2560?048.The。采 emphasis of observation is the lung markings midst upper field of right lung. All observers marked their confidence of the presentation of lung markings with three-point level rating scale : （1）excellent,（2）fine,（3）inferior. We used software SPSS 11.5 to analyze the interpreting results.Result： For the display of lung markings, there was no significant difference between the different modalities of displays used by the observers with the same aptitude; there was no significant difference between observers with different aptitudes using either 2M display or 3M display.However when using 5M display there was significant di