Abbreviations:

RT = Radiation Therapy
IMRT = Intensity Modulated RT
PMRT = Post-Mastectomy RT
TEM = Tissue Equivalent Material

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* 1. Please indicate where do you work

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* 2. Please indicate the type of your institution/hospital/department:

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* 3. How many years have you been practicing as a radiation oncologist?

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* 4. In candidates for mastectomy and possible immediate or delayed reconstruction, is the radiation oncologist in your institution consulted on the timing and type of reconstructive surgery?

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* 5. In your opinion who most often influences reconstruction timing (immediate vs delayed)?

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* 6. As a radiation oncologist, are the target volumes after immediate reconstruction well enough defined to apply consistently in daily practice?

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* 7. When planning PMRT, how often do you find target volume(s) and breast shape after immediate reconstruction create difficulties in achieving adequate coverage, whilst respecting dose constraints to organs at risk?

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* 8. Which sequence do you generally recommend/prefer for mastectomy candidates? More than 1 answer is possible: select the ones that are most used in your department on a case-by-case basis.

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* 9. Which sequence does your Institution perform most often for mastectomy candidates? More than 1 answer is possible: select the ones that are most used in your department on a case-by-case basis.

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* 10. For chest wall irradiation (mastectomy without immediate reconstruction), which of the following is an indication for boost at your institution?

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* 11. Following the question before, does an immediate reconstruction change the indication for delivering a boost?

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* 12. Do you use IMRT after immediate reconstruction?

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* 13. When the expander contains metal ports, do you use specific algorithms for the metal material and/or higher photon energies for dosimetry?

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* 14. Does your Institution use TEM after mastectomy without immediate reconstruction?

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* 15. Does your Institution use TEM after mastectomy with immediate reconstruction?

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* 16. Which bolus/TEM schedule do you use after mastectomy with or without immediate reconstruction?

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* 17. Which bolus/TEM thickness do you use (for 6 MV)?

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* 18. Assuming an indication exists for PMRT, which radiation do you use to boost the skin/nipple, after skin sparing or nipple sparing mastectomy?

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* 19. Excluding the boost dose, which schedule does your Institution use for PMRT without reconstruction?

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* 20. Excluding the boost dose, which schedule does your Institution use for PMRT after immediate reconstruction without regional nodal irradiation?

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* 21. Excluding the boost dose, which schedule does your Institution use for PMRT after immediate reconstruction with regional nodal irradiation?

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