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Regularized spectral log difference technique for ultrasonic attenuation imaging

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dc.contributor.author Coila Pacompia, Andres Leonel es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2017
dc.description.abstract The attenuation coefficient slope (ACS) has the potential to be used for tissue characterization and as a diagnostic ultrasound tool, hence complementing B-mode images. The ACS can be valuable for estimation of other ultrasound parameters such as the backscatter coefficient. There is a well-known tradeoff between the precision of the estimated ACS values and the data block size used in spectral-based techniques such as the spectral log difference (SLD). This trade-off limits the practical usefulness of spectral-based attenuation imaging techniques. In this thesis work, the regularized spectral log difference (RSLD) technique is presented in detail and evaluated with simulations and experiments with physical phantoms, ex vivo and in vivo. The ACS values obtained when using the RSLD technique were compared to the ones obtained when using the SLD technique, as well as the ground truth ACS values obtained with insertion loss techniques.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.uri https://hdl.handle.net/20.500.12390/1810
dc.language.iso eng
dc.publisher Pontificia Universidad Católica del Perú
dc.rights info:eu-repo/semantics/openAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject Ultrasonido
dc.subject Reconstrucción de imágenes digitales es_PE
dc.subject Imágenes en alta resolución es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#2.02.05
dc.title Regularized spectral log difference technique for ultrasonic attenuation imaging
dc.type info:eu-repo/semantics/masterThesis
dspace.entity.type Publication
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