口腔全景X射线机的质量控制  

Quality Control for Dental Panoramic X-ray Unit Machine

作　　者：姚绍卫[1] 夏勋荣 徐睿智[1] 

机构地区：[1]江苏省计量科学研究院,江苏南京210007

出　　处：《中国医疗设备》2013年第7期47-49,共3页China Medical Devices

摘　　要：口腔全景X射线机是口腔医学重要的诊断设备,它的质量控制有着非常重要的意义。本文对口腔全景X射线机的计量质量控制进行了一些探索,主要介绍了辐射剂量、半值层、空间分辨力、低对比度分辨力、管电压、曝光时间等技术参数的质量控制方法。为适应口腔全景X射线机的成像特点,设计了"U"型低对比度分辨力模体。The quality control of the dental panoramic X-ray machine is of great significance as it is an important diagnostic device in stomatology medical domain.Some explorations to measure quality control of the dental panoramic X-ray machine are carried out.This paper mainly introduces quality control methods of some technical parameters,such as radiation dose,the half-value layer,spatial resolution,lowcontrast resolution,tube voltage and exposure time.In order to adapt to imaging characteristics of the dental panoramic X-ray machine,the ‘U’ type low-contrast resolution phantom has been designed.

关 键 词：口腔全景机 X射线机 质量控制 空间分辨力 低对比度分辨力 

分 类 号：TH774[机械工程—仪器科学与技术]