HDR Brachytherapy

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HDR Brachytherapy

• Nicolas G. Zouain, MD
• Department of Radiation Oncology
• Roger Maris Cancer Center

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History
1905
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History
1920s
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Dose Rate

• Low dose rate (LDR)
• 0.4 to 2 Gy/hr
• Medium dose rate (MDR)
• 2 to 12 Gy/hr
• High dose rate (HDR)
• gt 12 Gy/hr but usually in the region of 150 Gy/hr
  2.5 Gy/min

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Why Brachytherapy

• Delivering the high dose of radiation to the
  tumor
• Sparing of the surrounding normal tissues
• Delivered in a short period of time
• Tumor repopulation
• Limited to localized tumors

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High Dose Inside of the Tumor
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100
150
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HDR Afterloading Machine
Iridium-192
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Prostate HDR Brachytherapy
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Breast HDR Brachytherapy
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Lungs HDR Brachytherapy
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Esophagus HDR Brachytherapy
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Cervix HDR Brachytherapy
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Uterus HDR Brachytherapy
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HN HDR Brachytherapy
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HN HDR Brachytherapy
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Rectal Brachytherapy
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Rectal Brachytherapy
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Rectal Brachytherapy
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Templates
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Trans Rectal Ultrasound
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Ultrasound Stepper
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Ultrasound Stepper Stabilizer
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TRUS Guided Needles Insertion
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MammoSite
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MammoSite
Un-inflated MammoSite is Advanced into the
Cavity Through the Troacar Path
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MammoSite
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MammoSite