Journal article

The dosimetric impact of supraclavicular nodal irradiation on the thyroid gland in patients with breast cancer.

Kim Ann Ung, Maria Portillo, Brigid Moran, Tomas Kron, Brooke Sawyer, Alan Herschtal, Boon H Chua

Practical Radiation Oncology | Published : 2013

Abstract

PURPOSE: The thyroid is not routinely considered an organ at risk in supraclavicular (SC) nodal radiation therapy (RT) for breast cancer. We compared the dosimetric impact of the following 2 RT planning techniques on the thyroid: (1) conventional single anterior field to encompass the SC nodal volume defined clinically; and (2) 3-dimensional conformal radiation therapy (3DCRT) planning to encompass the computed tomography (CT)-contoured SC nodal volume. METHODS AND MATERIALS: The thyroid, SC nodal volumes, and organs at risk were contoured on the planning CT of 20 patients who received 50 Gy in 2-Gy daily fractions to the breast or chest wall, and SC nodes. Comparisons of dosimetric paramete..

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