A comparison between skin dose of breast cancer patients at the breast region, measured by thermoluminescent dosimeter in the presence and absence of bolus

Farhood, B. and Bahreyni Toossi, M. and Ghatei, N. and Mohamadian, N. and Mozaffari, A. and Knaup, C. (2018) A comparison between skin dose of breast cancer patients at the breast region, measured by thermoluminescent dosimeter in the presence and absence of bolus. Journal of Cancer Research and Therapeutics, 14 (6). pp. 1214-1219.

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Abstract

Aim: The aim of this study was to measure entrance skin dose (ESD) on the breast of patients who had undergone radiotherapy following surgery, in the presence and absence of bolus. Materials and Methods: In this study, the ESD on the breast of 22 female patients was measured using thermoluminescent dosimeter-100 chips. For each patient, the ESD was measured 3 times (once without bolus and twice using bolus). The bolus types used in this study include super flab and wax. Results: The average ESDs on the breast of patients (from both medial and lateral tangential fields) in the presence of the super flab bolus and absence of bolus were 225.8 and 148.17 cGy, respectively, that when using the bolus, around 52 increasing in ESD was observed. The results showed a significant relationship between the ESD on the breast of patients and bolus types (P = 0.002); in addition, correlation coefficient between the two boluses (super flab and wax) was 0.615 (r = 0.615). Conclusion: When using the bolus in postmastectomy irradiation, it is noted that in dose delivery to the chest wall, surgical scar or skin of the treated region should be considered. The use of the bolus as a substance that increases of the skin dose can sometimes cause an excessive increase in skin dose that may cause severe skin reactions and underdosing of underlying tissues. Furthermore, using wax bolus in regions that do not require a lot of shaping of bolus is affordable. © 2018 Journal of Cancer Research and Therapeutics.

Item Type: Article
Additional Information: Cited By :4 Export Date: 16 February 2020 Correspondence Address: Bahreyni Toossi, M.; Medical Physics Research Center, Mashhad University of Medical Sciences, Faculty of Medicine, Vakil Abad Boulevard, Iran; email: bahreynimt@mums.ac.ir
Uncontrolled Keywords: Bolus Breast cancer Radiotherapy Skin dose absence of bolus adult Article cancer radiotherapy cancer surgery clinical article disease severity entrance skin dose female human mastectomy patient selection pharmacological parameters postoperative complication presence of bolus rigidity skin manifestation thermoluminescence dosimetry thickness thorax wall aged breast tumor comparative study drug effect follow up imaging phantom middle aged organs at risk procedures radiation response radiotherapy dosage radiotherapy planning system skin very elderly Aged, 80 and over Breast Neoplasms Follow-Up Studies Humans Phantoms, Imaging Radiotherapy Planning, Computer-Assisted Thermoluminescent Dosimetry Thoracic Wall
Subjects: WP Gynecology
WR Dermatology
QZ pathology-neoplasms-Genetics
Divisions: Mashhad University of Medical Sciences
Depositing User: lib2 lib2 lib2
Date Deposited: 20 May 2020 07:09
Last Modified: 20 May 2020 07:09
URI: http://eprints.mums.ac.ir/id/eprint/17275

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