An optimized posterior axillary boost technique in radiation therapy to supraclavicular and axillary lymph nodes: A comparative study
Journal Article
·
· Medical Dosimetry
- Department of Medical Physics, Hospital Sant Joan de Reus, IISPV, Tarragona (Spain)
- Department of Radiation therapy, Hospital Sant Joan de Reus, IISPV, Tarragona (Spain)
To assess the advantages of an optimized posterior axillary (AX) boost technique for the irradiation of supraclavicular (SC) and AX lymph nodes. Five techniques for the treatment of SC and levels I, II, and III AX lymph nodes were evaluated for 10 patients selected at random: a direct anterior field (AP); an anterior to posterior parallel pair (AP-PA); an anterior field with a posterior axillary boost (PAB); an anterior field with an anterior axillary boost (AAB); and an optimized PAB technique (OptPAB). The target coverage, hot spots, irradiated volume, and dose to organs at risk were evaluated and a statistical analysis comparison was performed. The AP technique delivered insufficient dose to the deeper AX nodes. The AP-PA technique produced larger irradiated volumes and higher mean lung doses than the other techniques. The PAB and AAB techniques originated excessive hot spots in most of the cases. The OptPAB technique produced moderate hot spots while maintaining a similar planning target volume (PTV) coverage, irradiated volume, and dose to organs at risk. This optimized technique combines the advantages of the PAB and AP-PA techniques, with moderate hot spots, sufficient target coverage, and adequate sparing of normal tissues. The presented technique is simple, fast, and easy to implement in routine clinical practice and is superior to the techniques historically used for the treatment of SC and AX lymph nodes.
- OSTI ID:
- 22262843
- Journal Information:
- Medical Dosimetry, Journal Name: Medical Dosimetry Journal Issue: 4 Vol. 38; ISSN 0958-3947
- Country of Publication:
- United States
- Language:
- English
Similar Records
Breast Cancer Regional Radiation Fields for Supraclavicular and Axillary Lymph Node Treatment: Is a Posterior Axillary Boost Field Technique Optimal?
SU-E-T-596: Axillary Nodes Radiotherapy Boost Field Dosimetric Impact Study: Oblique Field and Field Optimization in 3D Conventional Breast Cancer Radiation Treatment
Evaluation of a Single-Isocenter Technique for Axillary Radiotherapy in Breast Cancer
Journal Article
·
Fri May 01 00:00:00 EDT 2009
· International Journal of Radiation Oncology, Biology and Physics
·
OSTI ID:21276775
SU-E-T-596: Axillary Nodes Radiotherapy Boost Field Dosimetric Impact Study: Oblique Field and Field Optimization in 3D Conventional Breast Cancer Radiation Treatment
Journal Article
·
Sun Jun 01 00:00:00 EDT 2014
· Medical Physics
·
OSTI ID:22369713
Evaluation of a Single-Isocenter Technique for Axillary Radiotherapy in Breast Cancer
Journal Article
·
Wed Oct 01 00:00:00 EDT 2008
· Medical Dosimetry
·
OSTI ID:21140786