A SYSTEM TO MEASURE HEAD MOTION INSIDE A PET SCANNER

在宠物扫描仪内测量头部运动的系统

• 批准号: 2590330
• 负责人: S GOLDSTEIN
• 金额: --
• 依托单位: NATIONAL CENTER FOR RESEARCH RESOURCES
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/2590330
• 关键词: biomedical equipment development; clinical research; computer program /software; computer system design /evaluation; head movements; human subject; image processing; positron emission tomography

An optical system has been developed to measure the small motions of a person's head during a positron emission tomography (PET) scan in order to correct the scan and thereby improve the resolution of the image. The system uses two position-sensitive detectors to sense changes sequentially in the positions of three blinking miniature lamps that are affixed to the patient's head. The computer-controlled instrument computes the six degrees of freedom (three angles and three positions) that are necessary to characterize head movement.

已研制出一种光学系统，用于测量物体的微小运动 按顺序进行正电子发射断层扫描(PET)时的头部 以校正扫描，从而提高图像的分辨率。这个 系统使用两个位置敏感探测器来感知变化 顺序地在三个闪烁的微型灯的位置上 贴在病人的头上。计算机控制的仪器 计算六个自由度(三个角度和三个位置) 这是描述头部运动所必需的。