超声波碎石机X线定位电视系统的数字化研究  

Study on Digitization of X-ray TV System for Ultrasonic Lithotripter

作　　者：刘冰川[1] 孙雅军[2] 林玉峰[3] 

机构地区：[1]福州总医院医学影像科,福建福州350025 [2]福州总医院碎石室,福建福州350025 [3]福州总医院医学工程科,福建福州350025

出　　处：《中国医疗设备》2013年第4期36-38,共3页China Medical Devices

摘　　要：目的探讨超声波碎石机X线定位电视系统的数字化方案,以提高该系统的图像分辨率。方法把分辨率测试卡固定在影像增强器的输入面,用具有帧积累功能的摄像头和动态取景功能的数码单反相机采集影像增强器上的图像并进行分析。结果摄像头和数码单反相机实时成像的图像分辨率不理想,但数码单反相机所拍摄的静态图像有较高的分辨率。结论具有实时动态成像功能,又能以高像素拍摄静态图像的数码成像器件是超声波碎石机X线定位电视系统理想的数字化升级选择。Objective To explore the schemes of digitization of X-my TV system for ultrasonic lithotripter in order to improve the image resolution of the system. Methods Fixed the resolution testing card to the surface of the image intensifier, and analyzed the pictures on image intensifier with a camera with function of frame integration and a digital single lens reflex camera （DSLR） with function of live-view. Results Both camera and DSLR have lower image resolution in live imaging, whereas static pictures got by DSLR have better resolution. Conclusion Digital imaging devices with functions of real-time dynamic imaging and static ~pietures of high pixels are ideal for the digitization upgrade of X-ray TV system for ultrasonic litholripter.

关 键 词：超声波碎石机 影像增强器 X线电视系统 

分 类 号：R197.39[医药卫生—卫生事业管理]