Yonca Yahşi ÇELEN, Hazım Orhan KIZILKAYA

Investigation From Different Calculation Solutions In Vertebra Plans And The Reliability Of Different Dose Rate Dose

In this study, it was aimed to investigate the effect of different dose rate and different computational resolutions on stereotactic vertebrae irradiation with the results of the verification schemes on Gamma analysis and the effect on dose for critical organ and target volume. Ten patients with vertebrae participated in the study. Patients participating in the study were investigated for their effect on doses for critical organ and target volume by recalculating treatment plans at different dose rates and different computational resolutions without changing the optimization parameters using Intensity Modulated Radiation Therapy (IMRT) technique in the Eclipse treatment planning system with Varian Trilogy Linear Accelerator located in Şişli Hamidiye Etfal Training and Research Hospital , Radiation Oncology Department. Verification schedules of all the treatment plans The results were compared by using the Electronic Portal Imaging Device (EPID). Using different dose rates did not affect our treatment planning accuracy. However, it was seen that the high resolution calculated plans represented the target and critical organ doses better.

Keywords:

SBRT, IMRT EPID, IGRT,

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[1] M.J. Murphy, et. al., The management of imaging dose during image-guided radiotherapy: Report of the AAPM Task Group 75(2007)
[2] D. Verellen, M. De Ridder, G. Storme, A history of image guided radiotherapy. 4-13(2008), DOI:10.1016/j.radonc.2007.11.023
[3] S.P Collins, N.D. Coppa,Y. Zhang, B.T. Collins, D.A. McRae, W.C. Jean, CK Radiosurgery in the treatment of Complex Skull Base Tumors: Analysis of Planning Parameters.Radiation Oncology. 1(46):1-10(2006)
[4] J.M. Galvin, G. Bednarz, Quality Assurance Procedures for Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys. 71(1): 122-125(2008), DOI:10.1016/j.ijrobp.2007.10.002
[5] P.C. Gerszten, C. Ozhasoglu, S.A. Burton, et al., CyberKnife frameless stereotactic radiosurgery for spinal lesions: clinical experience in 125 cases. Neurosurgery. 55(1):89–98(2004).
[6] J.W. Degen, G.J. Gagnon, J.M. Voyadzis, et al., CyberKnife stereotactic radiosurgical treatment of spinal tumors for pain control and quality of life. J Neurosurgery Spine. 2(5):540–49(2005), DOI:10.3171/spi.2005.2.5.0540
[7] Y. Lemoigne, Caner A. Radiotherapy and Brachytherapy. Springer, Netherlands, 2009
[8] F.M. Khan,. The Physics of Radiation Therapy 3rd Edition. Lippincott Williams & Wilkins Company, USA, 2010.
[9] Anonymous. Stereotactic body radiation therapy: The report of AAPM Task Group 101.(2010).
[10] Ç. Rıza, Temel ve Klinik Radyoterapi Türk Radyasyon Onkolojisi Derneği(TROD), Yayın no:1.
[11] R. Timmerman, L. Papiez, R. McGarry, L. Likes, C. DesRosiers, S. Frost, Williams M. Extracranial stereotactic ablation: Results of a phase I study in medically inoperable stage I non-small cell lung cancer , Chest 124, 1946-1955(2003), DOI:10.1378/chest.124.5.1946
[12] R.I. Whyte, R. Crownover, M.J. Murphy, D.P. Martin, T.W. Rice, M.M. DeCamp, R. Rodebaugh, M.S. Weinhous, Q.T. Le, Stereotacitc radiosurgery for lung tumors: Preliminary report of a phase I trial, Ann Thorac. Surg. 75, 1097-1101.2003, DOI:10.1016/j.ejmp.2016.03.015
[13] S. Fukumoto, H. Shirato, S. Shimzu, S. Ogura, R. Onimaru, K. Yamazaki, K. Miyasaka, M. Nishimura, H. Dosaka-Akita, Small volume image-guieded radiotheraphy using hypofractionated, coplanar, and non-coplanar multiple fields for patients with inoperable stage I non small cell lung carcinomas, Cancer 95,1546-1553(2002), DOI:10.1002/cncr.10853
[14] Y. Danny, M.D. Song, Stereotactic body radiation theraphy: Rationale and clinical experience 2011.
[15] E.J. Hall, Radiobiology for the Radiologist, 4th ed. Lippincott, Philadelphia, PA, 211-1994.
[16] L. Potters, American Society for Therapeutic Radiology and Oncology and American Collage of Radiology Practice guideline for the performance of 70 stereotactic body radiation therapy, Int. J. Radiat. Oncol. Biol. Phys. 60(4), 1026-1032(2004), DOI: 10.1016/j.ijrobp.2004.07.701
[17] B.K. Chang, R.D. Timmerman, Stereotactic body radiation therapy: a comprehensive review. Am J Clin Oncol. 30:637-644(2007), DOI:10.1097/COC.0b013e3180ca7cb1
[18] A. Martin, A. Gaya, Stereotactic body radiotherapy: a review. Clin Oncol (R Coll Radiol). 22:157-172. (2010), DOI: 10.1016/j.clon.2009.12.003. Epub 2010 Jan 25.