Center for Virtual Imaging Trials

虚拟成像试验中心

• 批准号: 10551837
• 负责人: Ehsan Samei
• 金额: $ 124.98万
• 依托单位: DUKE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-04-01 至 2025-12-31
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/10551837
• 关键词: Acceleration; Adoption; Anatomy; Area; Clinical; Clinical Trials; Collaborations; Communities; Computer software; Computers; Detection; Digital Mammography; Effectiveness; Ensure; Esthetics; Ethics; Evaluation; Exercise; Fostering; Goals; Health; Human; Image; Image Analysis; Imaging Device; Imaging Techniques; Imaging technology; Infrastructure; Knowledge; Mammography; Manufacturer; Measures; Medical; Medical Imaging; Methodology; Methods; Modality; Modeling; Motion; Patient-Centered Care; Patients; Perception; Performance; Perfusion; Phase; Positioning Attribute; Protocols documentation; Qualifying; Radiation; Radiation Dose Unit; Radiology Specialty; Reader; Reproducibility; Research; Research Personnel; Resource Development; Resources; Safety; Scientist; Services; Source; System; Technology; Testing; Time; Training; Uncertainty; Universities; Work; X-Ray Computed Tomography; clinical application; clinical efficacy; clinical imaging; clinical predictors; clinically relevant; cost; design; detector; diagnostic value; digital; effectiveness evaluation; experimental study; imaging biomarker; imaging modality; imaging system; improved; in silico; model building; patient oriented; pre-clinical; radiation risk; reconstruction; screening; simulation; statistics; technology research and development; technology training; tool; tumor; virtual; virtual imaging; virtual patient; virtual platform

ABSTRACT – Center for Virtual Imaging Trials The accelerating complexity of medical imaging devices and methods has largely outpaced the field's ability to evaluate and optimize their design and clinical use. Doing so through clinical trials is often not feasible or definitive due to ethical limitations, expense, time requirements, and/or a fundamental lack of ground truth (exact patient anatomy and condition). Most current approaches to assess imaging technologies outside of clinical trials rely on simplistic models and subjective perception of image aesthetics, and results cannot readily predict clinical efficacy. To fill this gap, the broad objective of the Center for Virtual Imaging Trials is to develop a virtual platform for assessing the effectiveness of medical imaging systems and methods for specific clinical tasks. The initial focus is on computed tomography (CT), both due to its widespread medical utility and its status as the largest source of medical radiation. Virtual imaging trials offer an efficient means to evaluate imaging concepts and technologies in silico by simulating the patient, imaging system, and image evaluation. Such virtual trials can be conducted quickly and cost effectively on a computer, providing researchers a practical way to answer fundamental questions using the precise controls and the exact knowledge of a modeled patient. They also enable objective optimization of current and emerging imaging technologies (hardware and software) to minimize radiation risk and provide quantitative accuracy. By accelerating and improving imaging technologies' evaluation and optimization, virtual trials support quality, safety, and effective practice of patient-centered care. To achieve its objective, the Center will develop, refine, and disseminate the essential resources to realistically model and represent a) patients, b) imaging systems, and c) image evaluation. These resources comprise the three Technology Research and Development (TRD) projects, which work synergistically with and provide resources to Collaborative Projects (CPs) and Service Projects (SPs). A Technology Training and Dissemination (TTD) component will distribute the Center's resources and provide the necessary training. Administration provides infrastructure, oversight, and integration. The overall Specific Aims are to (1) develop, consolidate, and streamline the required components to enable virtual imaging trials of existing and emerging CT imaging methods, (2) position virtual trials as an alternative methodology to quantify, evaluate, and optimize CT imaging, and (3) disseminate to the research community validated tools for efficient virtual trials in CT and train researchers to use them effectively. Using state-of-the-art simulation and analysis methods, the Center will provide the first comprehensive platform to assess the diagnostic capability of imaging technologies in their complete trajectory from design to use. The Center will have a notable impact on rigorous and reproducible scientific design, prediction, and practice of medical imaging, starting with CT, leading to measured reductions in radiation dose, improvements in image quality, and advancement of precision imaging.

摘要 – 虚拟成像试验中心 医学成像设备和方法的复杂性不断增加，很大程度上超出了该领域的能力 通过临床试验来评估和优化其设计和临床使用通常是不可行或不可行的。 由于道德限制、费用、时间要求和/或根本缺乏基本事实而确定 （准确的患者解剖结构和状况）。目前评估成像技术之外的方法。 临床试验依赖于简单化的模型和对图像美学的主观感知，结果不能轻易得到 为了填补这一空白，虚拟成像试验中心的总体目标是开发。 用于评估特定临床医学成像系统和方法有效性的虚拟平台 最初的重点是计算机断层扫描（CT），因为它具有广泛的医疗用途和它的用途。 作为最大的医疗辐射源的地位虚拟成像试验提供了一种有效的评估方法。 通过模拟患者、成像系统和图像评估来进行计算机成像概念和技术。 这种虚拟试验可以在计算机上快速且经济高效地进行，为研究人员提供了 使用精确控制和确切知识来回答基本问题的实用方法 它们还能够客观优化当前和新兴的成像技术。 （硬件和软件）通过加速和提供最小化辐射风险并提供定量准确性。 改善成像技术的评估和优化，虚拟试验支持质量、安全性和有效性 以患者为中心的护理实践。 为了实现其目标，该中心将开发、完善和传播必要的资源，以切实实现 模型并代表 a) 患者、b) 成像系统和 c) 图像评估。 三个技术研发（TRD）项目，它们协同工作并提供 合作项目 (CP) 和服务项目 (SP) 的资源 A 技术培训和 传播（TTD）部分将分配中心的资源并提供必要的培训。 管理提供基础设施、监督和集成。总体具体目标是 (1) 开发、 整合并简化所需组件，以实现现有和新兴的虚拟成像试验 CT 成像方法，(2) 将虚拟试验定位为量化、评估和评估的替代方法 优化 CT 成像，(3) 向研究界传播经过验证的工具，以进行高效的虚拟试验 CT 并培训研究人员有效地使用它们，使用最先进的模拟和分析方法。 中心将提供首个评估影像技术诊断能力的综合平台 该中心从设计到使用的完整轨迹将对严格和使用产生显着影响。 从 CT 开始，医学成像的可重复科学设计、预测和实践，导致 测量了辐射剂量的减少、图像质量的提高以及精确成像的进步。