Comparison of the effectiveness and satisfaction of water bath and oven for mask molding in radiotherapy

Authors

  • Supakorn Suwannatrai Division of Radiological Technology, Faculty of Science, Ramkhamhaeng University
  • Aphiram Treesong Division of Radiological Technology, Faculty of Science, Ramkhamhaeng University
  • Wanutuch Jangprajak Division of Radiological Technology, Faculty of Science, Ramkhamhaeng University
  • Paowarin Khayaiwong Division of Radiological Technology, Faculty of Science, Ramkhamhaeng University
  • Puntiwa Oonsiri Division of Radiation Oncology, Department of Radiology, King Chulalongkorn Memorial Hospital, The Thai Red Cross Society

Keywords:

water bath, dry heat oven, thermoplastic mask, simulation, immobilization devices

Abstract

Backgrounds: Thermoplastic masks are used for patient immobilization in radiotherapy. Water bath and dry heat oven are used for thermoplastic masks warming before molding on the patient’s skin.

Objective: To compare the effectiveness and satisfaction between water bath and dry heat oven for thermoplastic mask molding in radiotherapy.

Materials and methods: The effectiveness of the water bath and the oven was examined in 3 categories: 1) preheat time, 2) mask warming time, and 3) mask molding time. The data of 20 patient who used thermoplastic masks were collected from August to September 2020. The thermoplastic masks were separated to new short mask, new long mask, reused short mask, and reused long mask. In addition, the satisfaction survey of usage a water bath and an oven for thermoplastic mask molding was evaluated by questionnaire from the radiotherapists.

Results: The results of effectiveness of the water bath and the oven were: 1) The average preheat time to 67 °C of the water bath was longer than the oven, 2,772.0±20.8 seconds and 103.3±5.8 seconds, respectively.  2) The mask warming time of the water bath was significantly shorter than the oven. 3) The mask molding time was not significantly different between using the water bath and the oven. The satisfaction survey from the radiotherapists which relevance with the water bath in very good levels was mask molding time, restore time for reusable, and reshape in a specific area. Meanwhile, the oven was very impressed in the mask’s cleanliness and the clean-up method.

Conclusion: The overall effectiveness of thermoplastic mask molding for radiotherapy by using the water bath and the oven was not different. The satisfaction scoring parameters of the water bath was maximum in reshape in a specific area, but the oven is cleanliness.

References

1. Mundt AJ, Roeske JC, Chung TD, Weichselbaum RR. Principles of radiation oncology. In: Kufe DW, Pollock RE, Weichselbaum RR, Bast RC, Gansler TS, Holland J, et al. Holland-Frei Cancer Medicine. 6th ed. Hamilton (ON): BC Decker; 2003. P. 585-604.
2. Uricchio N, Givens J, Keskemety J, Leaver D. Computed tomography simulation procedures. In: Washington CM, Leaver D, editors. Principles and practice of radiation therapy 4th ed. St. Louis, MO: Elsevier; 2016. p459-64.
3. Dieterich S, Ford E, Pavord D, Zeng J. Practical radiation oncology physics: a companion to Gunderson & Tepper’s clinical radiation oncology. 1st ed. Philadelphia, PA: Elsevier; 2016. p. 87-93.
4. Bahl A, Ghosal S, Kapoor R, Bhattacharya T, Sharma SC. Clinical implications of thermoplastic mask immobilization on acute effects of radiotherapy in head and neck cancers. J Postgrad Med Educ Res. 2012;46:187-9.
5. Hoisak JDP, Paxton AB, Waghorn BJ, Pawlicki T. Surface Guided Radiation Therapy [On line]. 2020 [cited 2020 July 5], Available from: https://books.google.co.th/books?id=XX_QDwAAQBAJ&pg=PA320&lpg=PA320&dq=oven+and+water+bath+for+mask+immobilization&source=bl&ots=hSIbFFlE7Z&sig=ACfU3U2m4Dd3wNxtY_s0I719cEewj63gRQ&hl=th&sa=X&ved=2ahUKEwjk_cKWx4_qAhUc7XMBHbWvDlYQ6AEwAXoECAgQAQ#v=onepage&q=oven%20and%20water%20bath%20for%20mask%20immobilization&f=false
6. อัลวานีย์ สติรักษ์. เทอร์โมพลาสติก (Thermoplastic) [อินเตอร์เน็ต]. 2563 [เข้าถึงเมื่อ 18 พ.ย. 2563], เข้าถึงได้จาก: http://www.nsm.or.th/other-service/669-online-science/knowledge-inventory/sci-vocabulary/sci-vocabulary-science-museum/4285-thermoplastic.html
7. ศูนย์เทคโนโลยีโลหะและวัสดุแห่งชาติ ประเภทและการใช้งานของพลาสติก [อินเตอร์เน็ต]. 2563 [เข้าถึงเมื่อ 1 ธ.ค. 2563], เข้าถึงได้จาก: https://www.mtec.or.th/bio-plastic/what-is-plastic/plastic-usage.html
8. ดลใจ เรืองฤทธิ์. การเตรียมแผ่นหน้ากากเอกซเรย์จากเทอร์โมพลาสติก เพื่อประยุกต์ใช้ทางการแพทย์ [อินเตอร์เน็ต] [เข้าถึงเมื่อ 1 ต.ค. 2563], เข้าถึงได้จาก: https://dric.nrct.go.th/index.php?/Search/SearchDetail/200148
9. Leech M, Coffey M, Mast M, Moura F, Osztavics A, Pasini D, et al. ESTRO ACROP guidelines for positioning, immobilisation and position verification of head and neck patients for radiation therapists. Technical Innovations & Patient Support in Radiation Oncology. 2017;1:1-7.
10. Oonsiri P. การ ใช้ IsoCal ในการประเมินระบบจุดหมุนของเครื่องฉายรังสียี่ห้อ Varian รุ่น C-series และ รุ่น TrueBeam. J Thai Assoc of Radiat Oncol. 2019;25:19-27.
11. Ravine TJ, Brewer PS, Bru SE, Tyler S. Sampling of patient radiation therapy thermoplastic immobilization forms reveals several types of attached bacteria. J Med Imaging Radiat Sci 2020;51:117-27.
12. Thermoplastic Mask Oven: What It Is and How It’s Optimizing Workflows [On line]. 2020 [cited 2020 July 5], Available from: https://www.taloncontrols.com/blog/thermoplastic-mask-oven-what-it-is-and-how-its-optimizing-workflows/
13. Water Bath vs. Dry-Heat Convection Oven [On line]. 2020 [cited 2020 July 6], Available from: https://www.orfit.com/blog/water-bath-vs-dry-heat-convection-oven/
14. Bogdanov B, Borghs K, Jordaens I. Precision, stability and comfort of patient immobilization in radiation oncology: immobilization devices based on Nano technology [On line]. 2020 [cited 2020 July 6], Available from:https://www.orfit.com/app/uploads/Stability-and-precision-of-immobilization-in-Radiation-Oncology-using-Nanotechnology.pdf
15. CIVCO Medical solution. Standard white thermoplastics CIVCO technical data sheet. [On line]. 2020 [cited 2020 October 15], Available from: https://civcort.com/ro/resources/Technical-Spec-Sheets/StandardWhiteThermoplasticTechnicalDataSheet_2016P1224_A.pdf
16. Klarity. Ovens. [On line]. 2020 [cited 2020 December 1], Available from: https://www.klaritymedical.com/ovens
17. โสรัชต์ เจริญวงศ์. ฟิสิกส์ทั่วไป General physics PH103. พิมพ์ครั้งที่ 2. กรุงเทพฯ: สำนักพิมพ์มหาวิทยาลัยรามคำแหง; 2543. หน้า 61-4.
18. The physics classroom. Methods of heat transfer. [On line]. 2020 [cited 2020 December 12], Available from: https://www.physicsclassroom.com/class/thermalP/Lesson-1/Methods-of-Heat-Transfer
19. Klarity. Dry heat FAQ. [On line]. 2020 [cited 2020 October 30], Available from: https://www.klaritymedical.com/oven-faq
20. Brewer PS, Ravine TJ, Bru SE. Risk of patient infection from heating appliances used to produce thermoplastic immobilization devices. Radiation Therapist 2014;23:125-35.
21. Klarity. KEL-1300 Klarity AirflowTM Oven Manual. [On line]. 2020 [cited 2020 December 1], Available from:https://static1.squarespace.com/static/5500bfbbe4b081f1de79c158/t/5e33300eaad93854bcb217b2/1580412948312/KEL-1300+Manual+Final.pdf

Downloads

Published

2021-05-24

How to Cite

1.
Suwannatrai S, Treesong A, Jangprajak W, Khayaiwong P, Oonsiri P. Comparison of the effectiveness and satisfaction of water bath and oven for mask molding in radiotherapy. J Thai Assn of Radiat Oncol [Internet]. 2021 May 24 [cited 2024 Apr. 26];27(1):R29-R42. Available from: https://he01.tci-thaijo.org/index.php/jtaro/article/view/246971

Issue

Section

Original articles