Year 2019, Volume 5 , Issue 1, Pages 63 - 72 2019-06-26

DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES

Duygu TUNÇMAN GENÇ [1] , Eda MUTLU [2] , Murat OKUTAN [3] , Bayram DEMİR [4]



In stereotactic radiotherapy, high radiation doses were delivered to tumors using small fields in 1-5 fractions. It is very important to make sure accuracy of dose and position of given dose in stereotactic radiotherapy.


 In this study,  dosimetric measurements of small sized brain tumors irradiated in CONE- based linear accelator (linac) and the volumetric arc therapy (VMAT) linac modalities  were performed with EBT3 film. 1,2 and 3 cm diameter tumors were virtually created in Cyberknife head and neck phantom. Gafchromic EBT3 film was placed into the phantom to evaluate the accuracy of the doses given. The phantom was irradiated with Gafchromic EBT3 film according to treatment plans created in the treatment planning system of two separate devices for each tumor size. Conformity Index (CI) and Homogeneity Index (HI) were calculated for the quality of created treatment plans. The dose distributions calculated in the film and the TPS were compared.


When the CI and HI values were examined, the CI and HI values of the cone-based linac device were close to 1. The EBT3 measurement results indicate that all SRT treatment modalities achieved accurate doses. According to results, if a critical organ, such as the brainstem, is located near the tumor and the situation requires a steep dose gradient, the cone-based linac should be used for SRT therapy.


This study has shown that on CONE-based linac or VMAT-based linac devices can be used instead of each other in small-area irradiations.


Stereotactic radiosurgery, Cyberknife, Linac, VMAT, Film dosimetry
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Primary Language en
Subjects Physics, Applied
Journal Section Article
Authors

Orcid: 0000-0002-0929-0441
Author: Duygu TUNÇMAN GENÇ (Primary Author)
Institution: ALTINBAS UNIVERSITY, VOCATIONAL SCHOOL OF HEALTH SERVICES
Country: Turkey


Orcid: 0000-0002-3972-7309
Author: Eda MUTLU
Institution: ALTINBAS UNIVERSITY, VOCATIONAL SCHOOL OF HEALTH SERVICES

Orcid: 0000-0002-2276-631X
Author: Murat OKUTAN
Institution: ISTANBUL UNIVERSITY, INSTITUTE OF ONCOLOGY

Orcid: 0000-0001-6815-6384
Author: Bayram DEMİR
Institution: FACULTY OF SCIENCE

Dates

Application Date : April 8, 2019
Acceptance Date : May 31, 2019
Publication Date : June 26, 2019

Bibtex @research article { mejs550933, journal = {Middle East Journal of Science}, issn = {}, eissn = {2618-6136}, address = {}, publisher = {INESEG YAYINCILIK}, year = {2019}, volume = {5}, pages = {63 - 72}, doi = {10.23884/mejs.2019.5.1.07}, title = {DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES}, key = {cite}, author = {Tunçman Genç, Duygu and Mutlu, Eda and Okutan, Murat and Demi̇r, Bayram} }
APA Tunçman Genç, D , Mutlu, E , Okutan, M , Demi̇r, B . (2019). DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES . Middle East Journal of Science , 5 (1) , 63-72 . DOI: 10.23884/mejs.2019.5.1.07
MLA Tunçman Genç, D , Mutlu, E , Okutan, M , Demi̇r, B . "DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES" . Middle East Journal of Science 5 (2019 ): 63-72 <https://dergipark.org.tr/en/pub/mejs/issue/46362/550933>
Chicago Tunçman Genç, D , Mutlu, E , Okutan, M , Demi̇r, B . "DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES". Middle East Journal of Science 5 (2019 ): 63-72
RIS TY - JOUR T1 - DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES AU - Duygu Tunçman Genç , Eda Mutlu , Murat Okutan , Bayram Demi̇r Y1 - 2019 PY - 2019 N1 - doi: 10.23884/mejs.2019.5.1.07 DO - 10.23884/mejs.2019.5.1.07 T2 - Middle East Journal of Science JF - Journal JO - JOR SP - 63 EP - 72 VL - 5 IS - 1 SN - -2618-6136 M3 - doi: 10.23884/mejs.2019.5.1.07 UR - https://doi.org/10.23884/mejs.2019.5.1.07 Y2 - 2019 ER -
EndNote %0 Middle East Journal of Science DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES %A Duygu Tunçman Genç , Eda Mutlu , Murat Okutan , Bayram Demi̇r %T DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES %D 2019 %J Middle East Journal of Science %P -2618-6136 %V 5 %N 1 %R doi: 10.23884/mejs.2019.5.1.07 %U 10.23884/mejs.2019.5.1.07
ISNAD Tunçman Genç, Duygu , Mutlu, Eda , Okutan, Murat , Demi̇r, Bayram . "DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES". Middle East Journal of Science 5 / 1 (June 2019): 63-72 . https://doi.org/10.23884/mejs.2019.5.1.07
AMA Tunçman Genç D , Mutlu E , Okutan M , Demi̇r B . DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES. MEJS. 2019; 5(1): 63-72.
Vancouver Tunçman Genç D , Mutlu E , Okutan M , Demi̇r B . DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES. Middle East Journal of Science. 2019; 5(1): 63-72.
IEEE D. Tunçman Genç , E. Mutlu , M. Okutan and B. Demi̇r , "DOSIMETRIC INVESTIGATION OF RADIOTHERAPY OF SMALL SIZE TUMORS IN RADIOSURGERY DEVICES", Middle East Journal of Science, vol. 5, no. 1, pp. 63-72, Jun. 2019, doi:10.23884/mejs.2019.5.1.07