Development of optical spectroscopy instruments and quantification methods to guide the resection of tumors in neurosurgery

开发光谱仪器和量化方法来指导神经外科肿瘤切除

• 批准号: 436073-2013
• 负责人: Leblond, Frederic
• 金额: $ 1.97万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632927
• 关键词: Development; optical; spectroscopy; instruments; quantification

The initial treatment step for brain cancer (before using chemotherapeutic drugs and/or radiation) is one of the following surgical procedures: (1) stereotactic needle biopsy to extract tumor tissue specimen allowing a diagnosis to be made, and (2) removal of as much of the tumor as possible to reduce the chances of post-surgical recurrences. The development of rapid and accurate tumor detection techniques to guide these procedures is crucial in neurosurgery where minimizing the amount of normal tissue that is resected or biopsied is highly desirable to avoid damage to motor and cognitive functions. The overarching goal of the proposed research program is to develop a range of innovative highly sensitive imaging and light detection methods for in vivo brain tumor characterization to provide accurate detection of lesion margins during surgery. More specifically, optical spectroscopy diagnostic instruments and data processing algorithms will be developed, exploiting non-ionizing light-tissue interaction mechanisms to quantify various biological markers associated with brain cancer. The engineering design of the new technologies will insure compatibility with the neurosurgical workflow in order to allow routine use in operating rooms and facilitate clinical adoption. The medical imaging instruments currently used in neurosurgery are limited in terms of their ability to fully detect and precisely localize tumor margins. Technological advances made through the proposed research will improve this by significantly expanding the amount of in vivo tissue information available at the time of surgery, thereby eventually resulting in safer and more accurate interventions. This new technology also has the potential to reduce the cost associated with surgery by reducing the time spent in the operating room and limiting the number of repeat procedures owing to diagnostic inaccuracies. Although this program primarily focuses on brain tumors, a longer-term goal is to broaden the scope of applicability of the core technology so it can be adapted to surgeries associated with other types of cancer such as breast, cervix, mouth and throat.

脑癌的初始治疗步骤（在使用化学治疗药物和/或辐射之前）是以下手术程序之一：（1）立体定向性刺穿动物活检以提取肿瘤组织样品以允许进行诊断，并且（2）尽可能多地去除肿瘤以减少后外部复发的机会。在神经外科手术中，发展快速，准确的肿瘤检测技术以指导这些过程至关重要，在神经外科手术中，将切除或活检的正常组织的量最小化是非常需要的，以避免损害运动和认知功能。拟议的研究计划的总体目标是开发一系列创新的高度敏感的成像和光检测方法，用于体内脑肿瘤表征，以便在手术过程中准确检测病变缘。更具体地说，将开发光谱诊断工具和数据处理算法，从而利用非电源光组织相互作用机制来量化与脑癌相关的各种生物标记。新技术的工程设计将确保与神经外科工作流程保持兼容性，以便在手术室常规使用并促进临床采用。目前在神经外科手术中使用的医学成像仪器在完全检测和精确定位肿瘤边缘的能力方面受到限制。通过拟议的研究取得的技术进步将通过显着扩大手术时可用的体内组织信息的量来改善这一点，从而最终导致更安全，更准确的干预措施。这项新技术还可以通过减少手术室所花费的时间并限制由于诊断性不准确而限制重复程序的数量来降低与手术相关的成本。尽管该程序主要集中于脑肿瘤，但长期目标是扩大核心技术的适用性范围，因此可以适应与其他类型的癌症（例如乳腺癌，子宫颈，口腔和喉咙）相关的手术。