CAREER: Miniature Scanning Endoscope for Multi-modality High-resolution Optical Imaging of Internal Organs

职业：用于内脏器官多模态高分辨率光学成像的微型扫描内窥镜

• 批准号: 0940321
• 负责人: Xingde Li
• 金额: --
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-05-11 至 2010-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0940321&HistoricalAwards=false
• 关键词: CAREER; Miniature; Scanning; Endoscope; Multi

0348720LiThis Career Development Plan focuses on developing a new-generation scanning endoscope that has all the major functions of a conventional scanning microscope yet is sufficiently small for imaging internal organs, with a long-term focus on early disease detection, particularly early cancer detection. In addition to clinical applications, the device may also be a valuable tool for basic biomedical research, particularly for those involving serial in vivo animal model studies. The primary objective of the research plan is to develop a miniature, forward-looking, multi-modality optical imaging device that can be delivered endoscopically for examining internal organs at or near cellular resolution. The endoscope can be used with optical coherence tomography (OCT), confocal microscopy and potentially multiphoton (fluorescence) microscopy (MPM), to perform non-invasive "optical biopsy." The year-by-year specific plans are to: (1) develop the essential components for a scanning endoscope, including a miniature fiber-optic beam scanner and high performance achromatic micro optics; (2) explore a novel real-time focus-tracking mechanism using an ultrasonic micromotor; (3) develop a new beam-scanning scheme that enables real-time ultrahigh resolution OCT imaging with an ultra broadband light source, and study real-time en face confocal imaging with the miniature scanning endoscope; (4) investigate the feasibility of the scanning endoscope for assessing cancerous changes using a carcinogenesis animal model; and (5) further miniaturize the scanning endoscope to interface with conventional surface tissue endoscopes, and explore the feasibility of the scanning endoscope for MPM imaging. In addition to clinical applications, the proposed device can also be a valuable tool for basic biomedical research, particularly for those involving serial in vivo animal model studies. The central aim of the education plan is to create a strong biomedical imaging and biophotonics research and education program, which vertically integrates physics, engineering and clinical diagnosis applications. The plan involves developing graduate and undergraduate courses and engaging students (particularly, undergraduate students) in the investigator's research program, thus providing students with the rigorous training necessary to bridge basic biomedical engineering research and clinical applications.

0348720 Li该职业发展计划的重点是开发新一代扫描内窥镜，该内窥镜具有传统扫描显微镜的所有主要功能，但尺寸足够小，可用于内部器官成像，长期专注于早期疾病检测，特别是早期癌症检测。 除了临床应用外，该设备也可能是基础生物医学研究的有价值的工具，特别是对于那些涉及系列体内动物模型研究的研究。该研究计划的主要目标是开发一种微型、前瞻性、多模态光学成像设备，可以通过内窥镜检查以细胞分辨率或接近细胞分辨率的内部器官。内窥镜可与光学相干断层扫描（OCT）、共聚焦显微镜和潜在的多光子（荧光）显微镜（MPM）一起使用，以执行非侵入性“光学活检”。“逐年的具体计划是：（1）开发扫描内窥镜的基本组件，包括微型光纤光束扫描器和高性能消色差微光学器件;（2）探索使用超声波微电机的新型实时焦点跟踪机制;（3）开发一种新的光束扫描方案，该方案能够利用超宽带光源实现实时高分辨率OCT成像，研究了微型扫描内窥镜的实时共聚焦成像技术;（4）研究了微型扫描内窥镜用于癌变动物模型评价癌变的可行性;（5）进一步将微型扫描内窥镜与传统的表面组织内窥镜接口，探讨了微型扫描内窥镜用于MPM成像的可行性。 除了临床应用外，所提出的装置也可以是基础生物医学研究的有价值的工具，特别是对于涉及系列体内动物模型研究的那些。该教育计划的中心目标是创建一个强大的生物医学成像和生物光子学研究和教育计划，垂直整合物理，工程和临床诊断应用。该计划涉及开发研究生和本科生课程，并让学生（特别是本科生）参与研究人员的研究计划，从而为学生提供必要的严格培训，以连接基础生物医学工程研究和临床应用。