X-SPECT FOR FUNCTIONAL & ANATOMIC IMAGING IN VIVO: BREAST CANCER

X-SPECT 功能性

• 批准号: 7334966
• 负责人: Sissy M Jhiang
• 金额: $ 7万
• 依托单位: OHIO STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-03-01 至 2007-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7334966
• 关键词: birth; breast neoplasms; neoplasm /cancer; training; university

This subproject is one of many research subprojects utilizing the resources provided by a Shared Instrumentation Grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the grant, which is not necessarily the institution for the investigator. DESCRIPTION (provided by applicant): An X-SPECT imaging system made by Gamma Medica, Inc. is requested in this Shared Instrument Grant application. X-SPECT(tm) is a dual-modality small animal imaging system that combines x-ray Computed Tomography (CT) and Single Photon Emission Computed Tomography (SPECT). Thus, X-SPECT(tm) is capable of generating co-registered anatomical (CT) and functional (SPECT) maps of intact animals under anesthesia. This instrument will allow 9 NIH- funded investigators to complete and significantly improve their studies on drug development, staging of tumor progression, and monitoring of gene delivery efficacy. Importantly, the instrument will enable the investigators to complete longitudinal studies in vivo without sacrifice of experimental animals. Consequently, investigators will study fewer animals but get much more data from each animal. The X-SPECT(tm) imaging system is capable of imaging large number of single photon emitting radioisotopes that are readily available, such as 1-125 (30 keV), TI-201 (75 keV), 1-123 (159 keV), ln-111 (171, 250 keV) and 1-131 (364 keV). The capability to image 1-125 is of particular noteworthy as 1-125 is commonly used in ex vivo molecular biology studies to label nucleic acids, antibodies, and ligands in addition to various Pharmaceuticals. New Pharmaceuticals can also be iodinated relatively easily. With X-SPECT(tm), these studies can now be performed non-invasively in vivo. In addition, the X-SPECT(tm) imaging system can perform dual isotope imaging simultaneously, such that one may look at drug delivery and efficacy simultaneously using two different tracers. The use of pinhole collimator allows the spatial resolution for SPECT imaging less than 1 mm. The x-ray CT system achieves high resolution better than 100 ¿m. There is no similar instrument at the Ohio State University or other research centers in the State of Ohio. The instrument will be housed in a radioisotope certified laboratory animal facility in Wiseman Hall under the supervision of a research nuclear medicine technologist, who will work closely with the internal advisory committee. The principal investigator and the research nuclear medicine technologist have received training in the use of the A-SPECT(tm) imaging system (microSPECT component of the X-SPECT1 imaging system). Users will be trained by the principal investigator, the research nuclear medicine technologist, and laboratory animal veterinarian. The software will operate in a Window environment on a networked computer that will allow the investigators to access the data from distant sites. An hourly fee will provide funds for the annual service contract. The X-SPECT(tm) system will be integrated as a component of an Imaging Core Facility (shared resource). Thus, space and utilities for the instrument plus the salary and benefits for the research nuclear medicine technologist will be provided by the Ohio State University Comprehensive Cancer Center.

该子项目是利用由NIH/NCRR资助的共享仪器补助金提供的资源的众多研究子项目之一。子项目和研究者（PI）可能已经从另一个NIH来源获得了主要资金，因此可以在其他CRISP条目中表示。列出的机构是资助机构，不一定是研究者的机构。描述（由申请人提供）：在此共享仪器拨款申请中要求Gamma Medica， Inc.制造的X-SPECT成像系统。X-SPECT（tm）是一种结合了x射线计算机断层扫描（CT）和单光子发射计算机断层扫描（SPECT）的双模小动物成像系统。因此，X-SPECT（tm）能够生成麻醉下完整动物的解剖（CT）和功能（SPECT）图。该仪器将允许9名NIH资助的研究人员完成并显著改进他们在药物开发、肿瘤进展分期和基因传递功效监测方面的研究。重要的是，该仪器将使研究人员能够在不牺牲实验动物的情况下完成体内纵向研究。因此，研究人员将研究更少的动物，但从每只动物身上获得更多的数据。X-SPECT（tm）成像系统能够成像大量的单光子发射放射性同位素，这些同位素很容易获得，如1-125 (30 keV), TI-201 (75 keV), 1-123 (159 keV), ln-111 （171, 250 keV）和1-131 （364 keV）。1-125成像的能力特别值得注意，因为1-125通常用于离体分子生物学研究，除各种药物外，还用于标记核酸、抗体和配体。新药品也可以相对容易地碘化。有了X-SPECT(tm)，这些研究现在可以在体内非侵入性地进行。此外，X-SPECT（tm）成像系统可以同时进行双同位素成像，这样就可以使用两种不同的示踪剂同时观察药物输送和疗效。针孔准直器的使用使得SPECT成像的空间分辨率小于1毫米。x射线CT系统实现了100 μ m以上的高分辨率。在俄亥俄州立大学或俄亥俄州的其他研究中心没有类似的仪器。该仪器将被安置在怀斯曼大厅的放射性同位素认证实验动物设施中，由一名研究核医学技术专家监督，该技术专家将与内部咨询委员会密切合作。首席研究员和研究核医学技术人员接受了使用A-SPECT（tm）成像系统（X-SPECT1成像系统的微spect组件）的培训。使用者将由首席研究员、研究核医学技术专家和实验动物兽医进行培训。该软件将在一台联网计算机的Window环境中运行，这将使调查人员能够从遥远的地点获取数据。按小时收费将为年度服务合同提供资金。X-SPECT（tm）系统将被集成为成像核心设施（共享资源）的一个组成部分。因此，该仪器的空间和设施以及研究核医学技术人员的工资和福利将由俄亥俄州立大学综合癌症中心提供。