Publicación (Artículos en revistas científicas)

Supervised Machine Learning Methods and Hyperspectral Imaging Techniques Jointly Applied for Brain Cancer Classification

Urbanos García, Gemma; Villanueva, Marta; Jiménez-Roldán, Luis; Chavarrías Lapastora, Miguel; Lagares, Alfonso; Juárez Martínez, Eduardo; Sanz Álvaro, César; Vázquez Valle, Guillermo; Martín Pérez, Alberto; Villa Romero, Manuel

Resumen:

Hyperspectral imaging techniques (HSI) do not require contact with patients and are non-ionizing as well as non-invasive. As a consequence, they have been extensively applied in the medical field. HSI is being combined with machine learning (ML) processes to obtain models to assist in diagnosis. In particular, the combination of these techniques has proven to be a reliable aid in the differentiation of healthy and tumor tissue during brain tumor surgery. ML algorithms such as support vector machine (SVM), random forest (RF) and convolutional neural networks (CNN) are used to make predictions and provide in-vivo visualizations that may assist neurosurgeons in being more precise, hence reducing damages to healthy tissue. In this work, thirteen in-vivo hyperspectral images from twelve different patients with high-grade gliomas (grade III and IV) have been selected to train SVM, RF and CNN classifiers. Five different classes have been defined during the experiments: healthy tissue, tumor, venous blood vessel, arterial blood vessel and dura mater. Overall accuracy (OACC) results vary from 60% to 95% depending on the training conditions. Finally, as far as the contribution of each band to the OACC is concerned, the results obtained in this work are 3.81 times greater than those reported in the literature.

Áreas de investigación:

• Tecnologías de Vídeo e Imagen

Año:

2021

Tipo de publicación:

Artículos en revistas científicas

Revista:

Sensors

Volumen:

21 (11)

Número:

3827

Páginas:

1‐29

Mes:

Mayo

ISSN:

1424-‐8

DOI:

10.3390/s21113827