Dorri Giv M, Bahreini Toosi MH, Aghamiri SMR, Akbari F, Taeb S. Calculation of Thyroid Dose with Planner System and Evaluation of Thyroid Function after Radiotherapy for Patients with Breast Cancer.
J Biomed Phys Eng 2016;
6:220-234. [PMID:
28144591 PMCID:
PMC5219573]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Accepted: 10/26/2015] [Indexed: 06/06/2023]
Abstract
BACKGROUND
Much research has widely been conducted into thyroid hormones levels following radiotherapy for breast cancer. Consequently, in this study, we evaluated to relate the rate of thyroid hormones levels with the dose distribution among breast cancer patients.
MATERIAL AND METHODS
Thirty patients were treated with 4-field breast cancer radiotherapy. The dose volume histograms, the volume percentage of the thyroid absorbing respectively 20, 30, 40 and 50 Gy were then estimated (V20, V30, V40 and V50) together with the individual average thyroid dose over the whole gland derived from their computed tomography-based treatment plans. Then, in serum samples triiodothyronine [T3], thyroxine [T4], thyroid-stimulating hormone [TSH] of the patients were measured before and after radiotherapy.
RESULTS
There were no significant differences in thyroid hormones levels before and after radiotherapy for patients with breast cancer (P value >.05).
CONCLUSION
On the balance, we understood that thyroid stimulating hormones levels did not change before and after cancer breast radiotherapy.
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