Dosimetric comparison of large field widths in helical tomotherapy for intracranial stereotactic radiosurgery

Watcharawipha, A.; Chitapanarux, I.; Jia-Mahasap, B.

doi:10.52547/ijrr.20.3.26

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Volume 20, Issue 3 (7-2022) Int J Radiat Res 2022, 20(3): 701-707 | Back to browse issues page

‎ 10.52547/ijrr.20.3.26

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Watcharawipha A, Chitapanarux I, Jia-Mahasap B. Dosimetric comparison of large field widths in helical tomotherapy for intracranial stereotactic radiosurgery. Int J Radiat Res 2022; 20 (3) :701-707
URL: http://ijrr.com/article-1-4369-en.html

Dosimetric comparison of large field widths in helical tomotherapy for intracranial stereotactic radiosurgery

A. Watcharawipha

, I. Chitapanarux

, B. Jia-Mahasap

Division of Radiation Oncology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand , imjai@hotmail.com

Abstract: (2117 Views)

Background: The Helical Tomotherapy (HT) technique has been introduced for use in Stereotactic Radiosurgery (SRS). Previously, the smallest field width (FW) has been recommended for optimum results, which would require a long beam-on time (BoT). The uncertainty of the intrafraction could be maximized during the delivery by this BoT. This study then investigated the plan qualities and dosimetric parameters among different FWs and treatment modes. Materials and Methods: Fifteen patients previously treated by the HT technique with fixed-FW 10 mm (FW10f) were selected. The treatment planning systems of TomoTherapy involved other plans that employed fixed-FW 25 mm (FW25f) and dynamic-FW 25 mm (FW25d). The plan quality indexes and the dosimetric parameters of the large FWs (FW 25 mm) were compared according to the FW10f benchmark and then analyzed by relevant statistics. Results: The plan quality indexes and the dosimetric parameters revealed no significant differences between FW10f and FW25d. Accordingly, FW25f revealed a significant difference in the FW10f values in some indexed parameters. The maximum dose on the right optic nerves and the value of the integral dose revealed a significant difference between FW10f and FW25f. The BoT of the FW10f presented the longest treatment time when compared with the other FWs. Conclusion: The outcomes of this investigation clearly ensure that the performance of FW25d is comparable with that of FW10f in terms of the plan qualities and the dosimetric parameters. Notably, the short BoT of this FW might benefit the minimization that is associated with intrafraction uncertainty.

Keywords: Dynamic jaws, field width, stereotactic radiosurgery, helical tomotherapy.

Full-Text [PDF 1897 kb] (980 Downloads)

Type of Study: Original Research | Subject: Radiation Biology

References

1. 1. Sio TT, Jang S, Lee SW, Curran B, Pyakuryal AP, Sternick ES (2014) Comparing Gamma Knife and CyberKnife in patients with brain metastases. J Appl Clin Med Phys, 15(1): 14-26. [DOI:10.1120/jacmp.v15i1.4095] [PMID] []

2. Mori Y, Nakazawa H, Hashizume C, Tsugawa T, Murai T (2019) Dosimetric comparison of hypofractionated stereotactic radiotherapy by three different modalities for benign skull base tumors adjacent to functioning optic pathways. Int J Radiat Res, 17(4): 519-530.

3. Wowra B, Muacevic A, Tonn JC (2009) Quality of radiosurgery for single brain metastases with respect to treatment technology: a matched-pair analysis. J Neurooncol, 94(1): 69-77. [DOI:10.1007/s11060-009-9802-y] [PMID]

4. Shao Y, Chen H, Wang H, Cheng Y, Zhu Z, Zhuo W, et al. (2022) Target dose accuracy of single-isocenter stereotactic body radiation therapy for multiple lung lesions. Int J Radiat Res, 20(1): 241-244. [DOI:10.52547/ijrr.20.1.37]

5. Yip HY, Mui WLA, Lee JWY, Fung WWK, Chan JMT, Chiu G, et al. (2013) Evaluation of radiosurgery techniques-cone-based linac radiosurgery vs tomotherapy-based radiosurgery. Med Dosim, 38(2): 184-189. [DOI:10.1016/j.meddos.2013.01.001] [PMID]

6. Lee TF, Chao PJ, Wang CY, Lan JH, Huang YJ, Hsu HC, et al. (2011) Dosimetric comparison of helical tomotherapy and dynamic conformal arc therapy in stereotactic radiosurgery for vestibular schwannomas. Med Dosim, 36(1): 62-70. [DOI:10.1016/j.meddos.2009.11.005] [PMID]

7. Bijina T, Ganesh K, Subbulakshmi B, Pichandi A (2020) Dosimetric comparison of single and double collimator stereotactic body radiotherapy plans using Cyber Knife for carcinoma prostate. Int J Radiat Res, 18(2): 209-217.

8. Murai T, Hayashi A, Manabe Y, Sugie C, Takaoka T, Yanagi T, et al. (2016) Efficacy of stereotactic radiotherapy for brain metastases using dynamic jaws technology in the helical tomotherapy system. Br J Radiol, 89(1066): 20160374. [DOI:10.1259/bjr.20160374] [PMID] []

9. Agostinelli S, Garelli S, Gusinu M, Zeverino M, Cavagnetto F, Pupillo F, et al. (2018) Dosimetric analysis of Tomotherapy-based intracranial stereotactic radiosurgery of brain metastasis. Phys Med, 52: 48-55. [DOI:10.1016/j.ejmp.2018.06.632] [PMID]

10. Holmes TW, Hudes R, Dziuba S, Kazi A, Hall M, Dawson D (2008) Stereotactic image-guided intensity modulated radiotherapy using the HI-ART II helical tomotherapy system. Med Dosim, 33(2): 135-148. [DOI:10.1016/j.meddos.2008.02.006] [PMID]

11. Soisson ET, Hoban PW, Kammeyer T, Kapatoes JM, Westerly DC, Basavatia A, et al. (2011) A technique for stereotactic radiosurgery treatment planning with helical tomotherapy. Med Dosim, 36(1): 46-56. [DOI:10.1016/j.meddos.2009.11.003] [PMID] []

12. Yawichai K, Chitapanarux I, Wanwilairat S (2016) Helical tomotherapy optimized planning parameters for nasopharyngeal cancer. J Phys Conf Ser, 694: 012002. [DOI:10.1088/1742-6596/694/1/012002]

13. Mangesius J, Seppi T, Weigel R, Arnold CR, Vasilijevic D, Goebel G, et al. (2019) Intrafractional 6D head movement increases with time of mask fixation during stereotactic intracranial RT-sessions. Radiat Oncol, 14(1): 231. [DOI:10.1186/s13014-019-1425-7] [PMID] []

14. Saw CB, Gillette C, Peters CA, Koutcher L (2018) Clinical implementation of radiosurgery using the Helical TomoTherapy unit. Med Dosim, 43(3): 284-290. [DOI:10.1016/j.meddos.2017.10.004] [PMID]

15. Hodapp N (2012) The ICRU Report 83: prescribing, recording and reporting photon-beam intensity-modulated radiation therapy (IMRT). Strahlenther Onkol, 188(1): 97-99. [DOI:10.1007/s00066-011-0015-x] [PMID]

16. Paddick I (2000) A simple scoring ratio to index the conformity of radiosurgical treatment plans. Technical note. J Neurosurg, 93(3): 219-222. [DOI:10.3171/jns.2000.93.supplement_3.0219]

17. Wagner TH, Bova FJ, Friedman WA, Buatti JM, Bouchet LG, Meeks SL (2003) A simple and reliable index for scoring rival stereotactic radiosurgery plans. Int J Radiat Oncol Biol Phys, 57(4): 1141-1149. [DOI:10.1016/S0360-3016(03)01563-3]

18. Li T, Irmen P, Liu H, Shi W, Alonso-Basanta M, Zou W, et al. (2019) Dosimetric Performance and Planning/Delivery Efficiency of a Dual-Layer Stacked and Staggered MLC on Treating Multiple Small Targets: A Planning Study Based on Single-Isocenter Multi-Target Stereotactic Radiosurgery (SRS) to Brain Metastases. Front Oncol, 9: 7. [DOI:10.3389/fonc.2019.00007] [PMID] []

19. Yaparpalvi R, Garg MK, Shen J, Bodner WR, Mynampati DK, Gafar A, et al. (2018) Evaluating which plan quality metrics are appropriate for use in lung SBRT. Br J Radiol, 91(1083): 20170393. [DOI:10.1259/bjr.20170393] [PMID] []

20. Zhang J, Peng Y, Ding S, Zhu J, Liu Y, Chen M, et al. (2020) Comparison of Different Combinations of Irradiation Mode and Jaw Width in Helical Tomotherapy for Nasopharyngeal Carcinoma. Front Oncol, 10: 598. [DOI:10.3389/fonc.2020.00598] [PMID] []

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