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RadioGxRadiogenomics & Nuclear Medicine Intelligence

Radiobiology: LQ model, BED and EQD2

Fit cell survival with the linear-quadratic model (SF2, α/β, D10, AUC), then convert fractionation schemes and protracted radionuclide doses to BED and EQD2.

Built on the logic of RadioGx (bhklab) (opens in a new tab). Research and education only.

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About this tool

What is Radiobiology lab?

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The radiobiology lab fits cell survival with the linear-quadratic model (SF2, α/β, D10, AUC) and converts fractionation schemes and protracted radionuclide doses to BED and EQD2.

Key features

  • LQ survival fitting with SF2, α/β, D10 and AUC
  • BED and EQD2 conversion
  • Protracted radionuclide dose delivery

Frequently asked questions

What is EQD2?

EQD2 is the equivalent dose in 2 Gy fractions: it converts a schedule into the total dose that would give the same biological effect if delivered in 2 Gy fractions, using the linear-quadratic model.