Eqd2 calculator

Quickly calculate radiation dose in equivalent 2 Gy fractions and biological equivalent dose BED, eqd2 calculator. This app includes a selectable list of alpha beta values of normal tissues and tumors.

If you would like to skip the theory, links to dose converters are at the bottom of this page. Isoeffective dose is described by the following equation:. For more details you can use, for example, Basic Clinical Radiobiology by Joiner and Kogel, or earlier, Steel's editions. The LQ model is not applicable for hypofractionated treatments. Also, formula 1 does not include certain factors, such as incomplete repair or proliferation. Above we described how to convert one dose regiment to the other but failed to explain what is BED.

Eqd2 calculator

Biologically equivalent doses are calculated in 2-Gy equivalents using the EQD 2 equation. To embed this calculator, please copy this code and insert it into your desired page:. Then you can click on the Print button to open a PDF in a separate window with the inputs and results. You can further save the PDF or print it. The concept of biologically effective dose is useful for quantifying treatment expectations, with the caveat that careful interpretation of modelling results is required before clinical decisions are made. Correct use of BED calculations often involves the collaboration with other patient parameters. Fowler JF. The linear-quadratic formula and progress in fractionated radiotherapy. Br J Radiol. The role of biologically effective dose BED in clinical oncology. Clin Oncol R Coll Radiol. Biologically effective dose distribution based on the linear quadratic model and its clinical relevance. Effect of variable dose rate on biologically effective dose. Int J Radiat Biol. Specialty: Oncology.

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Title updated to include EQD2. Updated 'Biological equivalent' to 'Biologically effective' to reflect calculator formula. Added references for calculation formulas. Furthermore, changes in circumstances after the time of publication of the Information may impact on the accuracy of the information. The biologically effective dose and equivalent dose in 2Gy calculators are based on the Linear Quadratic Model. As with any model there are limitations including the lack of a time factor and its applicability for low doses per fraction 1.

Biologically equivalent doses are calculated in 2-Gy equivalents using the EQD 2 equation. To embed this calculator, please copy this code and insert it into your desired page:. Then you can click on the Print button to open a PDF in a separate window with the inputs and results. You can further save the PDF or print it. The concept of biologically effective dose is useful for quantifying treatment expectations, with the caveat that careful interpretation of modelling results is required before clinical decisions are made. Correct use of BED calculations often involves the collaboration with other patient parameters. Fowler JF. The linear-quadratic formula and progress in fractionated radiotherapy. Br J Radiol.

Eqd2 calculator

Here are a few tips on how to best utilize these tools. However, 3 Gy and 10 Gy are often used for late and early tissues for general clinical purposes, respectively. These examples apply for all ClearCheck versions 2. To begin, we need to have the correct course and plan opened and the desired constraint template. It can also combine the doses from courses of treatment that do not have a similar fractionation scheme.

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Other Tools Feedback How to Print. On this page Bibliography History. In a more complicated prescription, a boost could be added to provide an additional dose. Next Review: July 6, Coffee Kick Calculator. Irradiation duration. It is important to note that if the boost were using brachytherapy instead of EBRT, the BEDs would still be summed; however, the brachytherapy BED requires a different formulation due to the significant damage repair during delivery. The linear-quadratic formula and progress in fractionated radiotherapy. BED is the theoretical limit of the equivalent dose delivered in small fraction, i. Clinical decisions based on this are the responsibility of the radiation oncologist.

Title updated to include EQD2.

The standard fractionation scheme is cGy x 44, and the hypofractionated is cGy x App Store Preview. Total dose given — the sum of all the doses received. Send Us Your Feedback. Body Mass Index Tracker. If you still want to compute it by yourself, here's the equation you'll need:. Table of contents: How to use the BED calculator? The linear-quadratic formula and progress in fractionated radiotherapy. Compatibility iPhone Requires iOS Disclaimer: This page is intended for educational purposes only.