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First published online July 5, 2006
British Journal of Radiology (2006) 79, 785-790
© 2006 British Institute of Radiology
doi: 10.1259/bjr/23839243
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Breast radiotherapy in women with pectus excavatum (funnel chest): is the lateral decubitus technique an answer? A dosimetric study

M A Bollet, MD F Campana, MD Y M Kirova, MD R Dendale, MD M-G Saliou, MD J-C Rosenwald, PhD and A Fourquet, MD

Department of Radiation Oncology, Institut Curie, Paris, France


Figure 1
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  		Figure 1. Schematic presentation of the isocentric lateral decubitus(ILD) technique for radiotherapy of the left breast.

 

Figure 2
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  		Figure 2. Pictures of the same patient with pectus excavatum at simulation in both(a) the supine and (b) the lateral decubitus set-ups.

 

Figure 3
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  		Figure 3. CT-scan slices at the level of the central axis (z = 0) of the same patient with pectus excavatum taken in (a) the supine and in (b) the lateral decubitus set-ups. Dosimetry of whole-breast radiotherapy was made for a prescribed dose of 50 Gy at mid-thickness using 4 MV photons.

 

Figure 4
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  		Figure 4. Simulation films of the internal fields of the four patients presenting pectus excavatum both with the isocentric lateral decubitus(ILD) and the standard supine (Sup) radiotherapy techniques. Each graduation represents a centimetre. Central lung distance (CLD) is the perpendicular distance from the tangential field edge to the posterior part of the anterior chest wall at the centre of the field. Maximal heart distance (MHD) is the maximal width of heart in the fields.

 




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