Image dosimetry for Y90 hepatic radioembolization: impact of PET spatial resolution.
Trabajo presentado en el 3er Congreso Europeo de Física Médica (ECMP) y becado para su asistencia.
DOI:
https://doi.org/10.37004/sefm/2021.22.2.004Keywords:
Hepatic radioembolization, image-based dosimetry, PET spatial resolutionAbstract
PET image plays a key role in quantitative image-based dosimetry for hepatic Y90 radioembolization. Nevertheless, given the limited scanner spatial resolution, the real activity distribution is blurred. It is usually argued that the blurring introduced by the PET is larger than the one due to the convolution kernel (VSV method) so that Local Deposition Method (LDM) provides sufficiently precise results. In the present work we have compared dosimetric results from LDM, VSV and Monte Carlo on synthetic PET images which have been blurred in order to simulate PET spatial resolution.
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