Medical imaging applications of next-generation spectroscopic x-ray imaging detectors

下一代光谱X射线成像探测器的医学成像应用

• 批准号: RGPIN-2017-06631
• 负责人: Tanguay, Jesse
• 金额: $ 1.89万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632944
• 关键词: Medical; imaging; applications; next; generation

: Medical x-ray imaging has revolutionized modern medicine; greater than 200 million x-ray imaging procedures are performed each year in North America. However, x-ray imaging procedures have been associated with cancer risks, with an estimated 20,000 cancers worldwide per year attributed to radiation exposure from x-ray imaging. There is therefore an urgent need to reduce radiation exposures from x-ray imaging. The efficiency with which x-rays are used to produce an image is limited by x-ray detector technology. Improving the dose efficiency of x-ray detectors is therefore expected to reduce the amount of radiation required for x-ray imaging procedures. Advances in x-ray detector technology have led to spectroscopic x-ray detectors, which are capable of estimating the energy of individual x-ray photons at rates adequate for a wide range of medical imaging procedures. This is an entirely different approach to x-ray detection than that used in clinically-available systems, and may potentiate a new paradigm of low-dose x-ray imaging.

医学X射线成像彻底改变了现代医学;在北美，每年进行超过2亿次X射线成像手术。然而，X射线成像程序与癌症风险有关，全世界每年估计有20，000例癌症归因于X射线成像的辐射照射。因此，迫切需要减少来自X射线成像的辐射暴露。X射线用于产生图像的效率受到X射线检测器技术的限制。因此，提高X射线探测器的剂量效率有望减少X射线成像程序所需的辐射量。X射线检测器技术的进步已经产生了光谱X射线检测器，其能够以足以用于广泛的医学成像过程的速率估计单个X射线光子的能量。这是一种与临床可用系统中使用的X射线检测完全不同的方法，并且可能增强低剂量X射线成像的新范例。