What concept did Claude Regaud introduce in the 1920s to optimize radiation treatment?
Answer
Fractionation
Claude Regaud identified that healthy cells and tumor cells possess different biological recovery rates following radiation exposure. By implementing fractionation, which involves dividing a total radiation dose into smaller daily segments over several weeks, he allowed normal healthy tissues time to recover between sessions. This method successfully delivers a lethal dose to cancer cells while preserving the integrity of the surrounding healthy environment.
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