GALILEOS锥形束CT的常规检测和校准方法  

Conventional detection and calibration method of GALILEOS cone beam CT

作　　者：潘克新 徐太祥 许琨林 李敏 PAN Ke-xin;XU Tai-xiang;XU Kun-lin;LI Min(Department of Medical Engineering,Daping Hospital,Army Medical University,Chongqing 400042,China;Department of Stomatology,Daping Hospital,Army Medical University,Chongqing 400042,China)

机构地区：[1]陆军军医大学大坪医院医学工程科,重庆400042 [2]陆军军医大学大坪医院口腔科,重庆400042

出　　处：《生物医学工程与临床》2021年第3期370-374,共5页Biomedical Engineering and Clinical Medicine

摘　　要：锥形束CT对口腔医学影像检查诊断发挥重要作用。其安全性和图像质量也引起临床医师重视。利用GALILEOS Compact自身的校准软件功能及专业的检测工具对几何体膜进行扫描,采集物体锥形束射线的投影数据,并在计算机上进行轴位、冠状位和矢状位的重建,获取图像后进行对比校准,包括检查照射野、剂量检测、传感器和光圈校准、遮光校准、畸变失真校准、光圈调整、上颚和下颚校准、几何校准。此校准方法供相关人员参考。Cone beam CT plays an important role in image examination of stomatology, and its safety and image quality are valued by clinicians. The GALILEOS Compact calibration software and professional inspection tools were used to scan geometric membrane and collect cone beam ray projection data. The axial, coronal and sagittal positions were reconstructed on computer, and acquired images were compared and calibrated, which included inspection of irradiation field, dose detection,sensor and aperture calibration, shading calibration, distortion calibration, aperture adjustment, upper and lower jaw calibration, and geometric calibration. The presented calibration method provides reference for relevant personnel.

关 键 词：锥形束CT 电器安全 校准方法 GALILEOS 口腔医学 影像诊断 

分 类 号：R197.39[医药卫生—卫生事业管理]