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Paper
Title

Dosimetric Characteristics of Transparent Bolus for External Beam Radiotherapy

مجله فیزیک پزشکی ایران، دوره: 16، شماره: 6
Year: 1398
COI: JR_IJMP-16-6_004
Language: EnglishView: 260
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Authors

Kesavan Govindaraj - Research and development centre,Bharathiar University,Coimbatore,India
SenthilKumar S - Dept. of Radiotherapy, Madurai Medical College & Govt. Rajaji Hospital, Madurai, India.
Jeevan Ram R.K - Dept.of Medical Physics, Bharathidasan University, Tiruchirapalli, India

Abstract:

Introduction: In radiotherapy, the bolus is often used while treating the tumor under the uneven surfaces of the patients for correcting the anatomical irregularities and increasing skin dose. Wet cotton and wet gauze are still used in developing countries, since the use of wet cotton and wet gauze has certain disadvantages, there is a need for transparent bolus which should be similar to a universally accepted bolus in terms of properties with a lower cost (50% less expensive). Material and Methods: The present study was conducted to investigate the characteristics of transparent bolus (Senflab) material, such as transmission factor, percentage depth dose (PDD), stability over time and high dose, homogeneity and transparency using 6 and 15 MV photons beam and 12, 15, and 18 MeV electrons beam. Moreover, the new bolus material was compared with those of the commercially available Superflab and RW3 slab. Results: The percentage difference in the transmission factor of Senflab was less than ±1.9%, compared with Superflab and RW3. For PDD, the percentage difference was ±2.88% and ±1.26% for photons and electron beams, respectively. The performance of bolus remained constant both physically and dosimetrically after higher dose exposure. The percentage standard deviation was 0.0002% for a period of one month, and 0.0003% for the homogeneity. The transparency of the bolus material was good enough to display the set radiation treatment field. Conclusion: This study shows the suitability of the new bolus for routine use in radiotherapy.

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Paper COI Code

This Paper COI Code is JR_IJMP-16-6_004. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

https://civilica.com/doc/959773/

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Govindaraj, Kesavan and S, SenthilKumar and R.K, Jeevan Ram,1398,Dosimetric Characteristics of Transparent Bolus for External Beam Radiotherapy,https://civilica.com/doc/959773

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