医学影像显示器的校准与质控

Calibration and quality control of medical image monitor

目的:探讨医学影像显示器的校准标准与方法,对其进行质量检测。方法 :分析医学影像显示器的相关标准、概念以及由医学数字成像和通信(digital imaging and communications in medicine,DICOM)标准定义的灰阶标准显示函数(grayscale standard display function,GSDF);以DICOM标准第14部分关于医学影像显示的内容为基础,使用DICOM GSDF标准函数,对医学影像显示器进行校准。结果:提出查找表与亮度计是医学影像显示器DICOM GSDF校准时不可缺少的工具,可以采用手动、自动及网络3种模式进行校准。结论:医学影像显示器的校准与质控应作为一项常规工作,只有对其进行DICOM GSDF校准后,才能用于临床诊断工作。

Objective To explore the standard and methods for the calibration of the medical image monitor, and to execute its quality detection. Methods The related standards and concepts of medical image monitor were analyzed, and the grayscale standard display function(GSDF) defined by DICOM was discussed. Calibration of medical image monitor was implemented with the 14th part of DICOM standard on medical image display and DICOM GSDF standard function. Results It's pointed out that lookup table and brillmeter were indispensible for DICOM GSDF calibration of medical image monitor. The calibration modes included the ones of manual, automatic and network. Conclusion Medical image monitor has to undergo calibration and quality control conventionally, and DICOM GSDF calibration should be executed before its clinical application.