Pregled bibliografske jedinice broj: 793615
Influence of routine MV CBCT usage on dose distribution in pelvic radiotherapy
Influence of routine MV CBCT usage on dose distribution in pelvic radiotherapy // Proceedings of the ninth symposium of the CRPA / Knežević, Ž. ; Majer, M. ; Krajcar Bronić, I. (ur.).
Zagreb: Hrvatsko društvo za zaštitu od zračenja, 2013. str. 295-301 (predavanje, domaća recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 793615 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Influence of routine MV CBCT usage on dose distribution in pelvic radiotherapy
Autori
Kasabašić, Mladen ; Ivković, Ana ; Tomaš, Ilijan ; Jurković, Slaven ; Faj, Dario
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the ninth symposium of the CRPA
/ Knežević, Ž. ; Majer, M. ; Krajcar Bronić, I. - Zagreb : Hrvatsko društvo za zaštitu od zračenja, 2013, 295-301
ISBN
978-953-96133-8-7
Skup
Deveti simpozij Hrvatskog društva za zaštitu od zračenja
Mjesto i datum
Krk, Hrvatska, 10.04.2013. - 12.04.2013
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Domaća recenzija
Ključne riječi
radiotherapy ; CBCT
Sažetak
The pelvic radiotherapy is a standard treatment for patients with cervical, uterine and rectal carcinomas. During radiation treatment open tabletop device or bellyboard is used to reduce the side effects of healthy surrounding tissue. Patients are continually adjusting to the bellyboard during the treatment which causes geometrical and dosage uncertainties and influences the results of the treatment. Therefore, to reduce this uncertainties, mega-voltage cone-beam computed tomography (MV CBCT) system is used. The objective of this research was to evaluate the image acquisition dose delivered to patients from MV CBCT. MV CBCT imaging was simulated on 15 patients using 3D treatment planning software XiO (CMS Inc., St. Louis, MO). The influence of the routine MV CBCT usage on treatment plan was investigated by analyzing the changes in dose volume histograms, mean values and maximum doses in the planning volumes. Simulations have shown that daily usage of MV CBCT causes differences in the dose volume histograms. Moreover, for every patient mean value exceeded prescribed tolerance (±1% of the prescribed dose) and maximum value exceeded recommended maximum of 107% of the prescribed dose. The results have shown that MV CBCT dose to the patient should be a part of RT plan.
Izvorni jezik
Engleski
Znanstvena područja
Fizika, Temeljne medicinske znanosti, Kliničke medicinske znanosti
POVEZANOST RADA
