EVALUATION AND COMPARISON OF VARIOUS 3-D CONFORMAL AND INTENSITY-MODULATED RADIOTHERAPY TECHNIQUES FOR TREATMENT OF PAROTID GLAND CANCER

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PAKSERESHT NARGES; JABBARI KEYVAN; AMOUHEIDARI ALIREZA; AKBARI MOHADDESEH

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Journal: Journal of Isfahan Medical School Year:2017 | Volume:35 | Issue:417 Page(s): 19-25

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Title

EVALUATION AND COMPARISON OF VARIOUS 3-D CONFORMAL AND INTENSITY-MODULATED RADIOTHERAPY TECHNIQUES FOR TREATMENT OF PAROTID GLAND CANCER

Author(s)

PAKSERESHT NARGES | JABBARI KEYVAN | AMOUHEIDARI ALIREZA | AKBARI MOHADDESEH | Issue Writer Certificate

Keywords

CANCER TREATMENT PROTOCOLSQ1

3-D CONFORMAL RADIOTHERAPYQ1

INTENSITY-MODULATED ARC THERAPYQ1

Abstract

Background: In this study, a comparison between various types of radiotherapy treatment for parotid gland cancer was performed to achieve the optimal treatment technique.Methods: Treatment planning and countering performed with TiGRT software for 15 patents with parotid gland cancer. Six techniques were performed and compared. Finally, by comparing the dose volume histograms (DVH), average dose received by each organ was determined and the best method was introduced. Techniques were as: 1. an ipsilateral wedge pair technique using 6 MV photons; 2. a 3-field anteroposterior (AP) (wedged) posteroanterior (PA) (wedged) and lateral portal technique using 6 MV photons; 3. a mixed beam technique using 6 MV photons and 12 MeV electrons (1: 4 weighting); 4. a mixed beam technique using 6 MV photons and 15 MeV electrons (1: 4 weighting); 5: four 6 MV photon beams with different gantry angles; and 6. similar to fifth technique with an additional small ring around the tumor tissue. Findings: INTENSITY-MODULATED ARC THERAPY (IMRT) techniques five and six delivered maximum dose to the target and minimum dose to organ at risks (OAR). Among 3-D CONFORMAL RADIOTHERAPY techniques (CRT), technique number two delivered more amount of dose to the target than techniques number three and four. The dose delivered to the contrary parotid gland was negligible for INTENSITY-MODULATED ARC THERAPY techniques.Conclusion: INTENSITY-MODULATED ARC THERAPY techniques are most appropriate methods for treating cancer of the parotid gland and the sixth technique delivered better dose distribution in the tumor and healthy tissues. Second D conformal radiotherapy technique delivered higher average dose to the target.

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APA: Copy

PAKSERESHT, NARGES, JABBARI, KEYVAN, AMOUHEIDARI, ALIREZA, & AKBARI, MOHADDESEH. (2017). EVALUATION AND COMPARISON OF VARIOUS 3-D CONFORMAL AND INTENSITY-MODULATED RADIOTHERAPY TECHNIQUES FOR TREATMENT OF PAROTID GLAND CANCER. JOURNAL OF ISFAHAN MEDICAL SCHOOL (I.U.M.S), 35(417), 19-25. SID. https://sid.ir/paper/50023/en

Vancouver: Copy

PAKSERESHT NARGES, JABBARI KEYVAN, AMOUHEIDARI ALIREZA, AKBARI MOHADDESEH. EVALUATION AND COMPARISON OF VARIOUS 3-D CONFORMAL AND INTENSITY-MODULATED RADIOTHERAPY TECHNIQUES FOR TREATMENT OF PAROTID GLAND CANCER. JOURNAL OF ISFAHAN MEDICAL SCHOOL (I.U.M.S)[Internet]. 2017;35(417):19-25. Available from: https://sid.ir/paper/50023/en

IEEE: Copy

NARGES PAKSERESHT, KEYVAN JABBARI, ALIREZA AMOUHEIDARI, and MOHADDESEH AKBARI, “EVALUATION AND COMPARISON OF VARIOUS 3-D CONFORMAL AND INTENSITY-MODULATED RADIOTHERAPY TECHNIQUES FOR TREATMENT OF PAROTID GLAND CANCER,” JOURNAL OF ISFAHAN MEDICAL SCHOOL (I.U.M.S), vol. 35, no. 417, pp. 19–25, 2017, [Online]. Available: https://sid.ir/paper/50023/en

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