arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2402.07192eess.IVcs.CV
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用于手术中脑癌检测的高光谱图像空间-光谱分类

Spatio-spectral classification of hyperspectral images for brain cancer detection during surgical operations

University of Las Palmas de Gran Canaria(大加那利岛拉斯帕尔马斯大学);Imperial College London(伦敦帝国理工学院);University Hospital Doctor Negrin(内格林大学医院);University Hospital Southampton(南安普顿大学医院);University of Cambridge(剑桥大学);Universidad Politecnica de Madrid(马德里理工大学)
H. Fabelo, S. Ortega, D. Ravi, B. R. Kiran, C. Sosa, D. Bulters, G. M. Callico, H. Bulstrode, A. Szolna, J. F. Pineiro, S. Kabwama, D. Madronal, R. Lazcano, A. … 展开作者

H. Fabelo, S. Ortega, D. Ravi, B. R. Kiran, C. Sosa, D. Bulters, G. M. Callico, H. Bulstrode, A. Szolna, J. F. Pineiro, S. Kabwama, D. Madronal, R. Lazcano, A. J. OShanahan, S. Bisshopp, M. Hernandez, A. Baez-Quevedo, G. Z. Yang, B. Stanciulescu, R. Salvador, E. Juarez, R. Sarmiento

AI总结:

提出一种结合监督与无监督机器学习的混合框架,利用高光谱图像的空间和光谱特征进行脑肿瘤边界分类,术中准确识别胶质母细胞瘤区域,经专家验证结果良好。

摘要:

脑癌手术是神经外科中的一个重大问题。这些肿瘤对周围正常脑组织的弥漫性浸润使得仅凭肉眼难以准确识别它们。由于手术是治疗脑癌的常见方法,对肿瘤进行准确的根治性切除能够提高患者的生存率。然而,在手术过程中识别肿瘤边界具有挑战性。高光谱成像是一种非接触、非电离且非侵入式的技术,适用于医学诊断。本研究提出了一种新型分类方法的开发,该方法考虑了高光谱图像的空间和光谱特征,以帮助神经外科医生在切除手术的术中准确确定肿瘤边界,避免对正常组织的过度切除或无意中残留肿瘤。本研究提出的旨在实现高效解决方案的算法由一个混合框架组成,该框架结合了监督和无监督机器学习方法。为了评估所提出的方法,使用了来自5名不同患者的体内受胶质母细胞瘤影响的脑表面5幅高光谱图像。所获得的最终分类图已由专家进行了分析和验证。这些初步结果令人鼓舞,获得了准确的肿瘤区域勾画。

英文摘要:

Surgery for brain cancer is a major problem in neurosurgery. The diffuse infiltration into the surrounding normal brain by these tumors makes their accurate identification by the naked eye difficult. Since surgery is the common treatment for brain cancer, an accurate radical resection of the tumor leads to improved survival rates for patients. However, the identification of the tumor boundaries during surgery is challenging. Hyperspectral imaging is a noncontact, non-ionizing and non-invasive technique suitable for medical diagnosis. This study presents the development of a novel classification method taking into account the spatial and spectral characteristics of the hyperspectral images to help neurosurgeons to accurately determine the tumor boundaries in surgical-time during the resection, avoiding excessive excision of normal tissue or unintentionally leaving residual tumor. The algorithm proposed in this study to approach an efficient solution consists of a hybrid framework that combines both supervised and unsupervised machine learning methods. To evaluate the proposed approach, five hyperspectral images of surface of the brain affected by glioblastoma tumor in vivo from five different patients have been used. The final classification maps obtained have been analyzed and validated by specialists. These preliminary results are promising, obtaining an accurate delineation of the tumor area.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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