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Pregled bibliografske jedinice broj: 527236

Optically stimulated luminescence in vivo dosimetry for radiotherapy: physical characterization and clinical measurements in Co-60 beams


Mrčela, Iva; Bokulić, Tomislav; Izewska Joanna, Budanec, Mirjana; Frobe, Ana; Kusić, Zvonko
Optically stimulated luminescence in vivo dosimetry for radiotherapy: physical characterization and clinical measurements in Co-60 beams // Physics in medicine and biology, 56 (2011), 18; 6065-6082 doi:10.1088/0031-9155/56/18/018 (međunarodna recenzija, članak, znanstveni)


Naslov
Optically stimulated luminescence in vivo dosimetry for radiotherapy: physical characterization and clinical measurements in Co-60 beams

Autori
Mrčela, Iva ; Bokulić, Tomislav ; Izewska Joanna, Budanec, Mirjana ; Frobe, Ana ; Kusić, Zvonko

Izvornik
Physics in medicine and biology (0031-9155) 56 (2011), 18; 6065-6082

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
In vivo dosimetry; OSL; radiotherapy

Sažetak
A commercial optically stimulated luminescence (OSL) dosimetry system was investigated for in vivo dosimetry in radiation therapy. Dosimetric characteristics of InLight dot dosimeters and a microStar reader (Landauer Inc.) were tested in 60Co beams. The reading uncertainty of a single dosimeter was 0.6%. The reproducibility of a set of dosimeters after a single irradiation was 1.6%, while in repeated irradiations of the same dosimeters it was found to be 3.5%. When OSL dosimeters were optically bleached between exposures, the reproducibility of repeated measurements improved to 1.0%. Dosimeters were calibrated for the entrance dose measurements and a full set of correction factors was determined. A pilot patient study that followed phantom validation testing included more than 100 measured fields with a mean relative difference of the measured entrance dose from the expected dose of 0.8% and the standard deviation of 2.5%. In conclusion, these results demonstrate that OSL dot dosimeters represent a valid alternative to already established in vivo dosimetry systems.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kliničke medicinske znanosti



POVEZANOST RADA


Ustanove
KBC "Sestre Milosrdnice"

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


Uključenost u ostale bibliografske baze podataka:


  • MEDLINE


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