Scientific computing in medical image reconstruction

医学图像重建中的科学计算

• 批准号: 298181-2007
• 负责人: Orchard, Jeffery
• 金额: $ 1.31万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2007
• 资助国家: 加拿大
• 起止时间: 2007-01-01 至 2008-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=363176
• 关键词: Scientific; computing; medical; image; reconstruction

Medical image reconstruction is the foundation for medical imaging; without accurate reconstruction, medical images contain errors that make diagnosis difficult or impossible.  Yet, there are many frontiers in medical image reconstruction that are untouched by the field of scientific computing.  This proposal aims at addressing two exciting medical image reconstruction issues, one in magnetic resonance imaging (MRI), and one in computed tomography (CT).Intra-echo MRI motion correction looks at ways to use a motion-tracking device with an MR scanner to improve image reconstruction.  Patient motion, such as Parkinsonian tremors, can corrupt the sensitive images that are used to diagnose and analyse ailments like multiple sclerosis, strokes, and other cerebrovascular diseases.  We propose that the intelligent use of motion-tracking data can compensate for that motion.The second project involves the development of reconstruction methods for portable CT scanners.  Researchers in nanotechnology are working on flexible arrays of x-ray emitters and detectors.  Using these arrays, we forsee a new breed of portable CT scanners that can be deployed right at the scene of an accident.  However, these devices have interesting reconstruction challenges that must be addressed before a prototype can be built.We propose the use of scientific computing to address these challenges.

医学图像重建是医学成像的基础;医学图像重建中存在着许多尚未被科学计算所触及的前沿问题。本文旨在解决两个令人兴奋的医学图像重建问题，一个是磁共振成像（MRI），一个是在计算机断层扫描（CT）中。内部回波MRI运动校正研究如何使用MR扫描仪的运动跟踪设备来改善图像重建。患者的运动，如帕金森震颤，可能会破坏用于诊断和分析多发性硬化症，中风，和其他脑血管疾病。我们建议智能使用运动跟踪数据可以补偿这种运动。第二个项目涉及便携式CT扫描仪重建方法的开发。纳米技术的研究人员正在研究X射线发射器和探测器的灵活阵列。使用这些阵列，我们预见到一种新的便携式CT扫描仪，可以部署在事故现场。2然而，这些设备有有趣的重建挑战，必须解决之前的原型可以建立。3我们建议使用科学计算来解决这些挑战。