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HalcyonTM Acuros XB vs AAA: A RapidArc Planning Comparison for Head & Neck Cancers

DOI: 10.4236/ijmpcero.2022.114016, PP. 189-199

Keywords: Halcyon, Acuros XB, AAA, RapidArc, Head and Neck

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Abstract:

The Halcyon O-ring gantry linear accelerator from Varian Medical Systems is delivered with a hardcoded beam-source model and Analytical Anisotropic Algorithm dose calculation algorithm as standard, while the Acuros XB algorithm is a purchasable option. The models in both algorithms are factory-configured and do not permit fine-tuning by the user. In this study, we compared the two algorithms for sequential boost RapidArc treatment planning of Head & Neck cancers using D98%, D95%, D50%, D2% and maximum dose to assess dose coverage of nodal and tumor planning target volumes (PTV_N and PTV_T, respectively), and cochlear D5%, parotid D20%, D50%, mean dose, and cord maximum dose to evaluate doses to organs- at-risk. The conformity index (CI), homogeneity index (HI) and total number of monitor units (MU) quantified plan quality. We found statistically significant differences in PTV_N D2%, maximum dose, HI, PTV_T D98%, D95%, D2%, Max, HI, and total MU. Statistically significant differences in Cochlear D5% and Parotid mean doses were also encountered. These differences may not necessarily be clinically significant, however. Therefore, we believe that both calculation algorithms are adequate for RapidArc planning of Head & Neck cancers.

References

[1]  Sroussi, H.Y., Epstein, J.B., Bensadoun, R.-J., Saunders, D.P., Lalla, R.V., Migliorati, C.A., Heaivilin, N., et al. (2017) Common Oral Complications of Head and Neck Cancer Radiation Therapy: Mucositis, Infections, Saliva Change, Fibrosis, Sensory Dysfunctions, Dental Caries, Periodontal Disease, and Osteoradionecrosis. Cancer Medicine, 6, 2918-2931.
https://doi.org/10.1002/cam4.1221
[2]  Kouloulias, V., Thalassinou, S., Platoni, K., Zygogianni, A., Kouvaris, J., Antypas, C. and Efstathopoulos, E. (2013) The Treatment Outcome and Radiation-Induced Toxicity for Patients with Head and Neck Carcinoma in the IMRT Era: A Systematic Review with Dosimetric and Clinical Parameters. BioMed Research International, 2013, Article ID: 401261.
https://doi.org/10.1155/2013/401261
[3]  van der Merwe, D., Van Dyk, J., Healy, B., Zubizarreta, E., Izewska, J., Mijnheer, B. and Meghazifene, A. (2017) Accuracy Requirements and Uncertainties in Radiotherapy: A Report of the International Atomic Energy Agency. Acta Oncologica, 56, 1-6.
https://doi.org/10.1080/0284186X.2016.1246801
[4]  Cai, B., Laugeman, E., Mazur, T.R., Park, J.C., Henke, L.E. and Kim, H. (2019) Characterization of a Prototype Rapid Kilovoltage X-Ray Image Guidance System Designed for a Ring Shape Radiation Therapy Unit. Medical Physics, 46, 1355-1370.
https://doi.org/10.1002/mp.13396
[5]  Smilowitz, J.B., Das, I.J., Feygelman, V., Fraass, B.A., Kry, S.F., Marshall, I.R., Milhailidis, D.N., Ouhib, Z., Ritter, T., Snyder, M.G. and Fairobent, L. (2015) AAPM Medical Physics Practice Guideline 5.a.: Commissioning and QA of Treatment Planning Dose Calculations—Megavoltage Photon and Electron Beams. Journal of Applied Clinical Medical Physics, 16, 14-34.
https://doi.org/10.1120/jacmp.v16i5.5768
[6]  Van Esch, A., Tillikainen, L., Pyykonen, J., Tenhunen, M., Helminen, H., Siljamäki, S., Alakuijala, J., Paiusco, M., Iori, M. and Huyskens, D. (2006) Testing of the Analytical Anisotropic Algorithm for Photon Dose Calculation. Medical Physics, 33, 4130-4148.
https://doi.org/10.1118/1.2358333
[7]  Fogliata, A., Nicolini, G., Clivio, A., Vanetti, E. and Cozzi, L. (2011) Dosimetric Evaluation of Acuros XB Advanced Dose Calculation Algorithm in Heterogeneous Media. Radiation Oncology, 6, 1-15.
https://doi.org/10.1186/1748-717X-6-82
[8]  Mbewe, J. and Shiba, S. (2021) Dosimetric Comparison between Varian Halcyon Analytical Anisotropic Algorithm and Acuros XB Algorithm for Planning of RapidArc Radiotherapy of Cervical Carcinoma. Progress in Medical Physics, 32, 130-136.
https://doi.org/10.14316/pmp.2021.32.4.130
[9]  Social Science Statistics (2022) Social Science Statistics.
https://www.socscistatistics.com/tests/mannwhitney/default2.aspx
[10]  Kry, S.F., Feygelman, V., Balter, P., Knoos, T., Charlie, M.C., Tonner, S.M.B. and Vassiliev, O.N. (2020) AAPM Task Group 329: Reference Dose Specification for Dose Calculations: Dose-to-Water or Dose-to-Muscle? Medical Physics, 47, e52-e64.
https://doi.org/10.1002/mp.13995
[11]  Munoz-Montplet, C., Marruecos, J., Buxo, M., Juardo-Bruggeman, D., Romera-Ma-rinez, I., Bueno, M. and Vilanova, J.C. (2018) Dosimetric Impact of Acuros XB Dose-to-Water and Dose-to-Medium Reporting Modes on VMAT Planning for Head and Neck Cancer. Physica Medica, 55, 107-115.
https://doi.org/10.1016/j.ejmp.2018.10.024

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