Descripción del proyecto
Una nueva tecnología de imágenes tomográficas está en la cresta de la ola
La tomografía, una combinación de las palabras griegas que significan «incisión» o «corte» y «escritura», es una técnica importante que produce imágenes de secciones o cortes de un material. Se puede centrar en un plano específico de interés o combinar los planos para recrear una imagen tridimensional de, por ejemplo, un órgano o tejido. Los métodos actuales para recoger los datos y producir las imágenes tomográficas contienen una considerable cantidad de incertidumbre. El proyecto financiado con fondos europeos QUANTOM combina múltiples modalidades de ondas —ondas luminosas, microondas y ondas sonoras— para permitir la obtención de imágenes tomográficas cuantitativas de alta resolución, combinadas con información de las incertidumbres subyacentes.
Objetivo
Tomographic images are a valuable tool in various applications of medicine and biomedicine, industry and in security applications. Although efficient tomographic imaging techniques exist, development of new modalities that would overcome the limitations of the existing techniques are required. Overall, there is a need for development of new tomographic techniques that would provide quantitative information of unknown parameters of interest, such as tomographic images on the concentration of molecules. In particular, information on the reliability of the tomographic images is required.
The objective of the project is to develop quantitative tomographic imaging technique based on coupled physics of waves. In coupled physics imaging, contrast and resolution originating from different physical phenomena are combined. In the project, light, microwaves and ultrasound, i.e. waves, will be utilised through photoacoustic, thermoacoustic and acousto-optic effects. These techniques will be developed to produce tomographic images with an outstanding quantitative contrast in the sense of statistical information and modelling of uncertainties, combined with superior resolution and imaging depth.
Most tomographic imaging techniques are ill-posed problems that need to be approached in the framework of inverse problems. In the project, a Bayesian approach to ill-posed inverse problems, which supports the quantitative nature of the problem, will be taken. In the project, mathematical modelling and computational methods will be developed in close connection with experimental system development. The research is founded on a strong understanding of the underlying physics of coupled physics problems, knowledge on instrumentation on the related fields and experimental tomography, and state-of-the-art methods of computational inverse mathematics, that all come together in the PI’s research group.
Ámbito científico
Palabras clave
Programa(s)
Régimen de financiación
ERC-COG - Consolidator GrantInstitución de acogida
70211 KUOPIO
Finlandia