Fecha y hora: 06.10.2021, a las 10.00
Lugar: Cubo Rojo, Online (https://u.i3m.upv.es/seminario)
JUAN JOSÉ GARCÍA GARRIGÓS
PHOTOACOUSTICS: A NOVEL TOOL FOR BIOMEDICAL IMAGING AT I3M
Photoacoustic imaging (PAI), also known as Optoacoustic imaging, is a novel biomedical imaging modality based on the irradiation of biological tissues with intense laser pulses and the detection of ultrasound waves that are generated locally as a consequence of the light absorption by the molecular absorbers inside the target tissue called chromophores. Images of a specific chromophore can then be achieved by choosing the excitation laser wavelength where it has a higher optical absorption contrast than the surrounding tissue substances. Therefore, this technique aims at providing functional, molecular and also anatomical images, with non-ionizing radiation and in a non-invasive way for both pre-clinical and clinical applications.
In this talk, it will be first introduced the photoacoustic effect as the underlying physical phenomenon governing PAI, which was discovered by Alexander Graham Bell back in 1880, following with an overview of the two main PAI technologies of photoacoustic tomography (PAT) and microscopy (PAM). We will then move into the state of the art and the last breakthroughs accomplished by the PAI scientific community, which has been gaining momentum mainly over the last decade. We will also try to get some insight in the promising future of PAI technology for becoming a reference diagnostic tool in the clinical practice, showing some commercial applications examples. Finally, it will be presented the recent experimental results made by the UMIL team and the work that lies ahead in this brand new research line at i3M.