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

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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Published in:Breast cancer : basic and clinical research Vol. 2017; no. 11; p. 1178223417731297
Main Authors: Tanaka, Hidekazu, Ito, Masaya, Yamaguchi, Takahiro, Hachiya, Kae, Yajima, Takahiko, Kitahara, Masashi, Matsuyama, Katsuya, Goshima, Satoshi, Futamura, Manabu, Matsuo, Masayuki
Format: Journal Article
Language:English
Published: London, England SAGE Publishing 2017
SAGE Publications
Sage Publications Ltd
Subjects:
Authorship
Biopsy
Breast cancer
Cancer therapies
Lymphatic system
Mastectomy
Original Research
Patients
Peer review
Planning
Radiation therapy
United States > US
sentinel lymph node biopsy
field-in-field technique
Breast cancer
axillary lymph node dissection
high tangent radiation therapy
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1178-2234
1178-2234
DOI:10.1177/1178223417731297