Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast
Introduction: This study aims to compare tangential volumetric modulated arc therapy with half beam volumetric modulated arc therapy in the treatment of cancer in the left and right breasts. Material and Methods: Twenty patients (10 with left and 10 with right breast cancer) were planned with Tange...
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Mashhad University of Medical Sciences
2024-10-01
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| Series: | Iranian Journal of Medical Physics |
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| Online Access: | https://ijmp.mums.ac.ir/article_24075_8983e7f85e9b643149bd53cae922b9b2.pdf |
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| author | Shreekripa Rao Alpha Benny Srinidhi Chandraguthi Rechal Dsouza |
| author_facet | Shreekripa Rao Alpha Benny Srinidhi Chandraguthi Rechal Dsouza |
| author_sort | Shreekripa Rao |
| collection | DOAJ |
| description | Introduction: This study aims to compare tangential volumetric modulated arc therapy with half beam volumetric modulated arc therapy in the treatment of cancer in the left and right breasts.
Material and Methods: Twenty patients (10 with left and 10 with right breast cancer) were planned with Tangential Volumetric Modulated Arc Therapy (tVMAT) and Half Beam Volumetric Modulated Arc Therapy (HVMAT) techniques for prescribed dose of 42.56Gy over 16 fractions with 6MV photon. The tVMAT technique limit the radiation to non-target areas. Dosimetric evaluations were performed for planning target volume (PTV), ipsilateral lung, heart, and contralateral breast with analysis via Repeated Measures ANOVA with a significance level of 5%.
Results: tVMAT achieved superior target coverage and dose homogeneity compared to HVMAT. For left breast cancer, HVMAT reduced ipsilateral lung doses but increased contralateral breast doses. Heart doses remained similar in both techniques. For right breast cancer, tVMAT provided higher target coverage and reduced doses across critical parameters.
Conclusion: tVMAT demonstrates strong potential as an advanced radiotherapy technique for breast cancer, improving dose control to the ipsilateral lung and heart while minimizing dose spread to the contralateral side, making it a promising alternative to conventional VMAT for enhanced precision in breast cancer treatment. |
| format | Article |
| id | doaj-art-e058c175ad7b47bf98eb41c931125a2c |
| institution | Kabale University |
| issn | 2345-3672 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Mashhad University of Medical Sciences |
| record_format | Article |
| series | Iranian Journal of Medical Physics |
| spelling | doaj-art-e058c175ad7b47bf98eb41c931125a2c2025-01-18T07:29:18ZengMashhad University of Medical SciencesIranian Journal of Medical Physics2345-36722024-10-0121530631310.22038/ijmp.2024.69049.221924075Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the BreastShreekripa Rao0Alpha Benny1Srinidhi Chandraguthi2Rechal Dsouza3Radiotherapy and Oncology Assistant Professor in Medical Physics School of Allied Health Sciences Kasturba Medical College Manipal Academy of Higher Education Manipal 576104Department of Radiotherapy and Oncology, Manipal College of Health Professions, Manipal Academy of Higher Education, Manipal, IndiaRadiotherapy and Oncology Senior Grade Lecturer Medical Physics Kasturba Medical College Manipal Academy of Higher Education Manipal IndiaASSISTANT PROFESSOR, MEDICAL RADIATION PHYSICS PROGRAM, MANIPAL COLLEGE OF HEALTH PROFESSIONS(MCHP), MANIPAL ACADEMY OF HIGHER EDUCATION(MAHE), MANIPAL-576104, KARNATAKA, INDIAIntroduction: This study aims to compare tangential volumetric modulated arc therapy with half beam volumetric modulated arc therapy in the treatment of cancer in the left and right breasts. Material and Methods: Twenty patients (10 with left and 10 with right breast cancer) were planned with Tangential Volumetric Modulated Arc Therapy (tVMAT) and Half Beam Volumetric Modulated Arc Therapy (HVMAT) techniques for prescribed dose of 42.56Gy over 16 fractions with 6MV photon. The tVMAT technique limit the radiation to non-target areas. Dosimetric evaluations were performed for planning target volume (PTV), ipsilateral lung, heart, and contralateral breast with analysis via Repeated Measures ANOVA with a significance level of 5%. Results: tVMAT achieved superior target coverage and dose homogeneity compared to HVMAT. For left breast cancer, HVMAT reduced ipsilateral lung doses but increased contralateral breast doses. Heart doses remained similar in both techniques. For right breast cancer, tVMAT provided higher target coverage and reduced doses across critical parameters. Conclusion: tVMAT demonstrates strong potential as an advanced radiotherapy technique for breast cancer, improving dose control to the ipsilateral lung and heart while minimizing dose spread to the contralateral side, making it a promising alternative to conventional VMAT for enhanced precision in breast cancer treatment.https://ijmp.mums.ac.ir/article_24075_8983e7f85e9b643149bd53cae922b9b2.pdfvmatbreast cancerradiation doseplanningradiotherapy |
| spellingShingle | Shreekripa Rao Alpha Benny Srinidhi Chandraguthi Rechal Dsouza Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast Iranian Journal of Medical Physics vmat breast cancer radiation dose planning radiotherapy |
| title | Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast |
| title_full | Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast |
| title_fullStr | Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast |
| title_full_unstemmed | Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast |
| title_short | Dosimetric Comparison of Tangential Volumetric Arc Therapy and Half Beam Volumetric Modulated Arc Therapy Planning Technique for Carcinoma of the Breast |
| title_sort | dosimetric comparison of tangential volumetric arc therapy and half beam volumetric modulated arc therapy planning technique for carcinoma of the breast |
| topic | vmat breast cancer radiation dose planning radiotherapy |
| url | https://ijmp.mums.ac.ir/article_24075_8983e7f85e9b643149bd53cae922b9b2.pdf |
| work_keys_str_mv | AT shreekriparao dosimetriccomparisonoftangentialvolumetricarctherapyandhalfbeamvolumetricmodulatedarctherapyplanningtechniqueforcarcinomaofthebreast AT alphabenny dosimetriccomparisonoftangentialvolumetricarctherapyandhalfbeamvolumetricmodulatedarctherapyplanningtechniqueforcarcinomaofthebreast AT srinidhichandraguthi dosimetriccomparisonoftangentialvolumetricarctherapyandhalfbeamvolumetricmodulatedarctherapyplanningtechniqueforcarcinomaofthebreast AT rechaldsouza dosimetriccomparisonoftangentialvolumetricarctherapyandhalfbeamvolumetricmodulatedarctherapyplanningtechniqueforcarcinomaofthebreast |