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The effect of photon energy on dose distribution in volumetric-modulated arc therapy planning for head and neck cancer

Published online by Cambridge University Press:  14 May 2020

Trang Hong Thi Nguyen Open the ORCID record for Trang Hong Thi Nguyen [Opens in a new window] ,
Akihiro Takemura Open the ORCID record for Akihiro Takemura [Opens in a new window] ,
Shinichi Ueda ,
Kimiya Noto ,
Hironori Kojima  and
Naoki Isomura
Trang Hong Thi Nguyen
Affiliation:
Division of Health Sciences, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Japan
Akihiro Takemura*
Affiliation:
Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
Shinichi Ueda
Affiliation:
Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan
Kimiya Noto
Affiliation:
Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan
Hironori Kojima
Affiliation:
Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan
Naoki Isomura
Affiliation:
Department of Radiological Technology, Kanazawa University Hospital, Kanazawa, Japan
*
Author for correspondence: Akihiro Takemura, Faculty of Health Sciences, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan. Tel: +81762652538. Fax: +81762344366. E-mail: [email protected]
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Abstract

Aim:

To investigate the effect of different energies on dose distribution in volumetric-modulated arc therapy (VMAT) plans for head and neck cancer.

Materials and methods:

Data from nine patients undergoing VMAT plans using 6 MV, 10 MV and dual-energy X-ray beams with the Pinnacle 3 V 9.10 treatment planning system (Philips Medical System, Fitchburg, WI, USA) were analysed for quality using the conformity index (CI) and homogeneity index (HI) for planning target volume (PTV), and for mean and maximum dose to the organs at risk (OARs): parotid glands, brainstem, spinal cord and optic nerves.

Results:

There were no clear differences in the HIs of the PTV dose among the different plans. The CIs for 10 MV and dual-energy VMAT plans were superior to that of the 6 MV VMAT plan (0·8 ± 0·3, 0·8 ± 0·3, and 0·7 ± 0·2, respectively; p = 0·001). There were no significant differences in mean/maximum dose to the OARs among the three VMAT plans.

Findings:

Compared with the 6 MV VMAT plan, the dual-energy VMAT plan slightly increased the coverage of the PTV with the prescribed dose but did not decrease dose to the OARs.

Keywords

dose distributionhead and neck cancerphoton energyVMAT plan
Type
Original Article
Information
Journal of Radiotherapy in Practice , Volume 20 , Issue 3 , September 2021 , pp. 316 - 320
Copyright
© The Author(s), 2020. Published by Cambridge University Press

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References

Otto, K. Volumetric modulated arc therapy: IMRT in a single gantry arc. Med Phys 2008; 35: 310–317.CrossRefGoogle Scholar
Palma, D, Vollans, E, James, K et al. Volumetric modulated arc therapy for delivery of prostate radiotherapy: comparison with intensity-modulated radiotherapy and three-dimensional conformal radiotherapy. Int J Radiat Oncol Biol Phys 2008; 72: 996–1001.CrossRefGoogle ScholarPubMed
Yoo, S, Wu, QJ, Lee, WR, Yin, FF. Radiotherapy treatment plans with rapid arc for prostate cancer involving seminal vesicles and lymph nodes. Int J Radiat Oncol Biol Phys 2010; 76: 935–942.CrossRefGoogle Scholar
Zhang, WZ, Zhai, TT, Lu, JY et al. Volumetric modulated arc therapy vs. c-IMRT for the treatment of upper thoracic esophageal cancer. PLoS ONE 2015; 10: e0121385. doi:10.1371/journal.pone.0121385.CrossRefGoogle ScholarPubMed
Vasanthan, S, Ganesh, KM, Sunil, M, Raghavendiran, B. Radiation-induced second cancer risk from external beam photon radiotherapy for head and neck cancer: impact on in-field and out-of-field organs. Asian Pac J Cancer Prev 2017; 18: 1897–1903.Google Scholar
Guckenberger, M, Richter, A, Krieger, T, Wilbert, J, Baier, K, Flentje, M. Is a single arc sufficient in volumetric modulated arc therapy (VMAT) for complex-shaped target volumes. Radiother Oncol 2009; 93: 259–265.CrossRefGoogle ScholarPubMed
Bora, T, Hatice, B, Sibel, TO. An investigation of the dose distribution effect related with collimator angle in volumetric arc therapy of prostate cancer. J Med Phys 2016; 41: 100–105.Google Scholar
Sung, W, Park, JM, Choi, CH, Ha, SW, Ye, SJ. The effect of photon energy on intensity-modulated radiation therapy (IMRT) plans for prostate cancer. Radiation Oncol J 2012; 30: 27–35.CrossRefGoogle ScholarPubMed
Hussein, M, Aldridge, S, Guerrero Urbano, T, Nisbet, A. The effect of 6 and 15 MV on intensity-modulated radiation therapy prostate cancer treatment: plan evaluation, tumour control probability and normal tissue complication probability analysis, and the theoretical risk of secondary induced malignancies. Br J Radiol 2012; 85: 423–432.Google ScholarPubMed
Agazaryan, N, Tenn, S, Chow, P et al. Volumetric arc therapy treatment protocol for hypo-fractionated stereotactic body radiotherapy for localised prostate cancer. Poster 3431 presented ASTRO, 2010.CrossRefGoogle Scholar
International Commission on Radiation Units and Measurements, Bethesda MD. Prescribing, Recording and Reporting Photon Beam Therapy. International Commission on Radiation Units and Measurements; 1993. ICRU Report 50.Google Scholar
International Commission on Radiation Units and Measurements, Bethesda MD. Prescribing, Recording and Reporting Photon Beam Therapy (Supplement to ICRU Report 50). International Commission on Radiation Units and Measurements; 1999. ICRU Report 62.Google Scholar
Radiation Therapy Oncology Group. RTOG 0225: A Phase II study of intensity modulated radiation therapy (IMRT)±chemotherapy for nasopharyngeal cancer.Google Scholar
Hodapp, N. The ICRU Report 83: prescribing, recording and reporting photon-beam intensity-modulated radiation therapy (IMRT). Strahlenther Onkol 2012; 188: 97–99.CrossRefGoogle Scholar
Radiation Therapy Oncology Group. RTOG 0615: A phase II study of concurrent chemoradiotherapy using 3D conformal radiotherapy (3D-CRT) or intensity-modulated radiation therapy (IMRT) plus bevacizumab (BV) for locally or regionally advanced nasopharyngeal cancer.Google Scholar
Laughlin, JS, Mohan, R, Kutcher, GJ. Choice of optimum megavoltage for accelerators for photon beam treatment. Int J Radiat Oncol Biol Phys 1986; 12: 1551–1557.CrossRefGoogle ScholarPubMed
Park, JM, Choi, CH, Ha, SW, Ye, SJ. The dosimetric effect of mixed-energy IMRT plans for prostate cancer. J Appl Clin Med Phys 2011; 12: 147–157.CrossRefGoogle ScholarPubMed
de Boer, SF, Kumek, Y, Jaggernauth, W, Podgorsak, MB. The effect of beam energy on the quality of IMRT plans for prostate conformal radiotherapy. Technol Cancer Res Treat 2007; 6: 139–146.CrossRefGoogle ScholarPubMed