Hyperspectral and multispectral imaging in neurosurgery: a systematic literature review and meta-analysis

Giulio Anichini, Maria Leiloglou, Zepeng Hu, Kevin O'Neill, Daniel Elson
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Abstract

The neuro-surgical community is witnessing a rising interest for surgical application of multispectral/hyperspectral imaging. Several potential technical applications of this optical imaging are reported, but the set-up is variable and so are the processing methods. We present a systematic review of the relevant literature on the topic. A literature search based on the PRISMA principles was performed on PubMed, SCOPUS, and Web of Science, using MESH terms and Boolean operators. Papers regarding intra-operative in-vivo application of multispectral and/or hyperspectral imaging in humans during neurosurgical procedures were included. Papers reporting technologies related to radiological applications were excluded. A meta-analysis on the performance metrics was also conducted. Our search string retrieved 20 papers. The main applications of optical imaging during neurosurgery concern tumour detection and improvement of the extent of resection (15 papers) or visualization of perfusion changes during neuro-oncology or neuro-vascular surgery (5 papers). All the retrieved articles were pilot studies, proof of concepts, or case reports, with limited number of patients recruited. Sensitivity, specificity, and accuracy were promising in most of the reports, but the metanalysis showed heterogeneous approaches and results among studies. The present review shows that several approaches are currently being tested to integrate hyperspectral imaging in neurosurgery, but most of the studies reported a limited pool of patients, with different approaches to data collection and analysis. Further studies on larger cohorts of patients are therefore desirable to fully explore the potential of this imaging technique.
神经外科中的高光谱和多光谱成像:系统文献综述和荟萃分析
神经外科界对多光谱/高光谱成像在外科手术中的应用越来越感兴趣。有报道称,这种光学成像技术有多种潜在应用,但其设置和处理方法各不相同。我们对该主题的相关文献进行了系统回顾。根据 PRISMA 原则,我们使用 MESH 术语和布尔运算符在 PubMed、SCOPUS 和 Web of Science 上进行了文献检索。纳入了有关在神经外科手术过程中在人体术中应用多光谱和/或超光谱成像的论文。报告与放射学应用相关技术的论文除外。此外还对性能指标进行了荟萃分析。我们的搜索字符串检索到 20 篇论文。神经外科手术中光学成像的主要应用涉及肿瘤检测和改善切除范围(15 篇论文)或神经肿瘤学或神经血管手术中灌注变化的可视化(5 篇论文)。所有检索到的文章均为试点研究、概念验证或病例报告,招募的患者人数有限。大多数报告的灵敏度、特异性和准确性都很不错,但荟萃分析表明不同研究的方法和结果各不相同。本综述显示,目前正在测试几种将高光谱成像整合到神经外科中的方法,但大多数研究报告的患者人数有限,数据收集和分析方法也不尽相同。因此,需要对更多的患者进行进一步研究,以充分发掘这种成像技术的潜力。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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