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MATTIA ROMEO

Dosimetric evaluation using EPR/alanine and radiochromic film detectors in end-to-end brain stereotactic radiosurgery sessions

  • Authors: Panzeca, S.; De Farias Soares, A.; Iacoviello, G.; Cucchiara, T.; Gallo, S.; Romeo, M.; D'Oca, M.C.; Marrale, M.
  • Publication year: 2025
  • Type: Articolo in rivista
  • OA Link: http://hdl.handle.net/10447/700903

Abstract

This pilot study aimed to establish end-to-end stereotactic radiosurgery (SRS) sessions and evaluate the accuracy of the delivered doses using EPR/alanine and GAFChromicâ„¢ EBT3 films. Six Planning Treatment Volumes (PTVs), representing variations in tumor size, location, and proximity to Organs at Risk (OARs), were assessed using an anthropomorphic male head phantom irradiated with a TomoTherapy Hi-Art system (fraction of 10.5 Gy). Maximum deviations ranged from − 0.35 to 0.16 Gy, and − 0.35 to − 0.08 Gy, for alanine and films, respectively, even under complex spatial dose distribution (e.g., PTV6). Therefore, the findings demonstrated the reliability of both systems for precise SRS dosimetry.