Dosimetría por imagen en radioembolización hepática con Y90impacto de la resolución espacial del PET

  1. Nuria Carrasco Vela 1
  2. Natalia Tejedor Aguilar 2
  3. Vicente Giménez Gómez 3
  4. Irene Torres Espallardo 2
  1. 1 Hospital Universitario Dr. Peset, Valencia, España
  2. 2 Hospital Universitario y Politécnico La Fe, Valencia, España
  3. 3 Universidad de Valencia - Instituto de Física Corpuscular (IFIC), Valencia, España
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Journal:
Revista de Física Médica

ISSN: 1576-6632

Year of publication: 2021

Volume: 22

Issue: 2

Pages: 43-48

Type: Article

DOI: 10.37004/SEFM/2021.22.2.004 DIALNET GOOGLE SCHOLAR lock_openOpen access editor

More publications in: Revista de Física Médica

Abstract

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 suffi-ciently 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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