iLQ vs LQCalc

iLQ is a radiotherapy dose-equivalence calculator based on the linear-quadratic (LQ) model, designed by radiation oncologists. DESIGNED FOR iPhone Duo Unfolded, iLQ uses both sides of the fold: inputs on one side, the result on the other, always in view. In Information, the list stays on one side and the text opens on the other. TWO CALCULATORS • Equivalent dose: converts a total dose delivered with one dose per fraction into the equivalent total dose for a new dose per fraction. • EQD2: equivalent dose in 2 Gy fractions. FEATURES • 17 organs at risk with their α/β ratio and dose constraint, or any α/β ratio from 0.5 to 20 Gy • Results update as you type • Warnings when the dose per fraction is outside the model's range (1–6 Gy) or when the organ's dose constraint is exceeded • Formulas, LQ model background and conditions of use included • Also runs on Mac with Apple silicon • Works offline, no account, no data collected iLQ is intended for research purposes only. It must not be used to adapt or modify patient treatment.

LQ model (LinearQuadraticModel)に基づき、放射線治療線量の換算計算を行います。HyperFractionation、再照射線量にも対応しています。 1回線量(Gy)、分割回数(Fr)、α/β値から BED(Biological Effective Dose; 生物学的等価線量) = nd(1 + d/[α/β]) EqD2(Gy等価線量換算値) = 1 回線量 2 Gy換算のnormalized total dose を計算します。 2種類のα/β値で同時計算が可能です。 本アプリの計算結果は、治療の妥当性や正確性等について保証するものではなく、 一切の責任を負い兼ねます。その結果から生じるいかなる損害についても責任を負いません。あらかじめご了承をお願いいたします。 参考文献: Fowler J. Int J Radiat Oncol Biol Phys 72 (5); 1532-1537, 2009