Advanced micro-PET/CT/RT System for Translational Radiation Oncology Applications

用于转化放射肿瘤学应用的先进微型 PET/CT/RT 系统

• 批准号: 9249366
• 负责人: YIPING SHAO
• 金额: $ 36.41万
• 依托单位: UT SOUTHWESTERN MEDICAL CENTER
• 依托单位国家: 美国
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-05-01 至 2019-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/9249366
• 关键词: 3-Dimensional; Adopted; Anatomy; Animal Disease Models; Animals; Beds; Biological; Biological Process; Caliber; Clinical; Clinical Research; Computer software; Data; Dose; Effectiveness; Electronics; Evaluation; Functional Imaging; Geometry; Goals; Human; Image; Imaging technology; Knowledge; Lead; Length; Logistics; Lung Neoplasms; Measures; Methods; Modeling; PET/CT scan; Performance; Phase; Photons; Play; Positioning Attribute; Positron-Emission Tomography; Problem Solving; Procedures; Protocols documentation; Radiation; Radiation Oncologist; Radiation Oncology; Radiation therapy; Radioisotopes; Research; Research Methodology; Research Personnel; Resolution; Risk; Roentgen Rays; Role; Scientist; Semiconductors; Source; System; Technology; Testing; Therapeutic Studies; Translating; Translational Research; Tumor Volume; Uncertainty; Variant; X-Ray Computed Tomography; base; cancer therapy; chemoradiation; clinical application; clinically relevant; data acquisition; design; detector; follow-up; image guided; image guided radiation therapy; image registration; imaging modality; imaging system; improved; in vivo; innovation; microCT; molecular imaging; new technology; novel; novel therapeutics; prevent; prototype; quantitative imaging; radiation effect; radiation response; research study; response; sensor; success; theories; thyroid neoplasm; treatment planning; tumor

Project Summary For radiation therapy (RT), the capability to precisely define and delivery radiations with the targeted distribution and dose level and to adapt the treatment plan based on the tumor biological response to RT is the key for any successful clinical therapy and translational research. For improving the current RT protocols and develop new novel RT strategies, it is critical to conduct translational RT researches with the technologies and procedures analogous to those applied in clinical RT practice so that the research methods and results are clinically relevant and can be effectively translated to clinical studies and applications. The goal of this project is to establish practical and advanced PET/CT image-guided radiation therapy (IGRT) capability for translational RT researches. The significance and impact of this project are very clear: it will overcome a critical technical obstacle to transform the current practice of RT research that is almost solely relied on anatomic CT images to the one guided by functional images with the knowledge of actual tumor biological status and function. The success of this project is expected to have lasting impact to improving and accelerating the translational RT research and profound benefits to enhancing the cancer treatment. The research aims to develop an advanced animal PET and integrate it with an existing micro-CT/RT, evaluate and improve the performance through experiments of phantom imaging and system modeling, and conduct pilot animal studies to test the capability PET/CT image-guided translational radiation oncology applications. The newly developed PET detector technologies will be applied to overcome technical challenges to achieve high sensitivity (23%) and high, uniform resolution (1 mm) required by the quantitative imaging of small size tumor for RT studies. The novel imaging technology to be developed by this project should also be practical so that it can be adopted for other micro-CT/RT systems without fundamental technical difficulties.

项目概要 对于放射治疗 (RT)，能够精确定义和传递目标辐射的能力 分布和剂量水平，并根据肿瘤对放疗的生物学反应来调整治疗计划是 任何成功的临床治疗和转化研究的关键。用于改进当前的 RT 协议和 开发新的RT策略，利用技术和技术进行转化RT研究至关重要 程序类似于临床 RT 实践中应用的程序，因此研究方法和结果 具有临床相关性，可以有效转化为临床研究和应用。该项目的目标 旨在建立实用且先进的PET/CT图像引导放射治疗（IGRT）能力 转化RT研究。该项目的意义和影响非常明确：它将克服一个关键的问题 改变目前几乎完全依赖解剖CT的RT研究实践的技术障碍 图像以功能图像为指导，了解实际肿瘤生物学状态和 功能。该项目的成功预计将对改善和加速 转化放疗研究及其对增强癌症治疗的深远益处。该研究旨在 开发先进的动物 PET 并将其与现有的显微 CT/RT 相结合，评估和改进 通过幻影成像和系统建模实验来评估性能，并进行试点动物研究 测试 PET/CT 图像引导平移放射肿瘤学应用的能力。新开发的 将应用PET探测器技术克服技术挑战，实现高灵敏度（23%） RT 研究中小尺寸肿瘤定量成像所需的高、均匀分辨率 (1 mm)。 该项目将开发的新型成像技术也应该具有实用性，以便能够被采用 适用于其他微型 CT/RT 系统，没有根本性的技术困难。