High Tangent Radiation Therapy With Field-in-Field Technique for Breast Cancer

PURPOSE: We evaluated whether the field-in-field (FIF) technique improves the homogeneity of the target in high tangent radiation therapy (HTRT). MATERIALS AND METHODS: This study included 30 patients. In total, 3 HTRT plans were created: 1 with conventional opposed fields (Conv-p), 1 with the FIF t...

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Detalles Bibliográficos
Autores principales: Tanaka, Hidekazu, Ito, Masaya, Yamaguchi, Takahiro, Hachiya, Kae, Yajima, Takahiko, Kitahara, Masashi, Matsuyama, Katsuya, Goshima, Satoshi, Futamura, Manabu, Matsuo, Masayuki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: SAGE Publications 2017
Materias:
Original Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5613839/
https://www.ncbi.nlm.nih.gov/pubmed/28974918
http://dx.doi.org/10.1177/1178223417731297
Descripción
Sumario:PURPOSE: We evaluated whether the field-in-field (FIF) technique improves the homogeneity of the target in high tangent radiation therapy (HTRT). MATERIALS AND METHODS: This study included 30 patients. In total, 3 HTRT plans were created: 1 with conventional opposed fields (Conv-p), 1 with the FIF technique (FIF-p), and 1 with FIF technique using lung-blocked subfields (FIF-LB-p). RESULTS: The maximum dose of the breast and planning target volume (PTV) was significantly lower for FIF-p and FIF-LB-p than Conv-p. Homogeneity index of PTV was also significantly lower for FIF-p and FIF-LB-p than Conv-p. Homogeneity index of the breast or PTV was significantly better for FIF-p than FIF-LB-p. The volumes of the breast or the PTV receiving 95% and 90% of the prescribed dose were also significantly better for FIF-p, indicating the advantages of FIF-p. CONCLUSIONS: The FIF technique was useful in HTRT and improved homogeneity in the target.

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