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British Journal of Radiology (2005) 78, 51-54
© 2005 British Institute of Radiology
doi: 10.1259/bjr/29242407
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Irradiation with standard tangential breast fields in patients treated with conservative surgery and sentinel node biopsy: using a three-dimensional tool to evaluate the first level coverage of the axillary nodes

R Orecchia, MD 1,4 A Huscher, MD 1 M C Leonardi, MD 1 R Gennari, MD 2 V Galimberti, MD 2 C Garibaldi, PhD 3 E Rondi, PhD 3 L C Bianchi, MD 1 S Zurrida, MD 2 and S Franzetti, MD 1

1 Division of Radiotherapy, 2 Division of Senology, 3 Medical Physic Unit, European Institute of Oncology, Milan and 4 University of Milan, Milan, Italy



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  		Figure 1. Mean total doses absorbed in the first axillary level, with standard therapy of 50 Gy, in 2 Gy fractions.

 


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  		Figure 2. Volumetric coverage of the first axillary level.

 


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  		Figure 3. Dose–volume histograms (DVHs) of the first axillary level for all patients.

 


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  		Figure 4. Minimum, maximum and mean dose–volume histograms (DVHs) of the first axillary level.

 


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  		Figure 5. First level axillary lymph nodes contoured on CT slice (arrow) and its relationship to the upper border of planned tangential fields.

 


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  		Figure 6. Surface rendered image of tangential portals of a typical patient, showing breast target volume, underlying lung and first axillary node level (arrow). Note that the first level nodes are only partially included within the tangential fields.

 




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