Izvorni znanstveni članak
https://doi.org/10.20471/acc.2022.61.s3.3
Dosimetric Verification of Intensity Modulated Radiotherapy (IMRT) Treatment Plans for Prostate Cancer Patients
Iva Mrčela
orcid.org/0000-0003-3875-5604
; Department of Medical Physics; University of Applied Health Sciences, Zagreb, Croatia
Marin Gregov
; Department of Medical Physics; University of Applied Health Sciences, Zagreb, Croatia
Ante Matanić
; Department of Medical Physics; University of Applied Health Sciences, Zagreb, Croatia
Mirjana Budanec
; Department of Medical Physics; University of Applied Health Sciences, Zagreb, Croatia
Jure Murgić
; Departement of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Center, Zagreb, Croatia; University of Applied Health Sciences, Zagreb, Croatia
Blanka Jakšić
; Departement of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Center, Zagreb; Croatia
Marin Prpić
; Departement of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Center, Zagreb, Croatia; School of Dental Medicine, University of Zagreb, Zagreb, Croatia
Angela Prgomet Sečan
; Departement of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Center, Zagreb, Croatia
Ana Fröbe
; Departement of Oncology and Nuclear Medicine, Sestre milosrdnice University Hospital Center, Zagreb, Croatia; School of Dental Medicine, University of Zagreb, Zagreb, Croatia
Sažetak
Intensity modulated radiotherapy (IMRT) has become widely used as a standard
radiation therapy technique for the treatment of localized prostate cancer. The transition from conformal
radiotherapy (3D CRT) to a more complex IMRT technique triggered the need for more thorough
verification of the accuracy in the dose delivery. In this work we present the clinical workflow
and the results of patient specific quality assurance (PSQA) procedures for 40 prostate cancer patients
who have been treated with step and shot IMRT ever since its implementation in our routine clinical
practice. PSQA procedures include dosimetric verification of each treatment plan with dedicated
rotational phantom and high-resolution matrix detector system Octavius 4D (PTW Freiburg) that
allows three-dimensional comparison of the calculated and delivered radiation dose distribution. Our
results proved the compliance with the universal tolerance limits recommended for those procedures
(1), assuring the safety of the treatment and providing the possibility for the adoption of more stringent
constraints in the future.
Ključne riječi
Prostate IMRT; Patient Specific QA
Hrčak ID:
286245
URI
Datum izdavanja:
1.10.2022.
Posjeta: 730 *