# LQCalc

> LQCalc (iPhone/iPad app by RADLab, K.K..)

- Source: https://appshunter.io/ios/app/lqcalc/id1555260645 (this page in markdown: same URL + `.md`)
- Developer: [RADLab, K.K.](https://appshunter.io/developer/1555036017)
- Category: Medical, Education
- Price: $0.99
- Age rating: 17+
- Requires: iOS 14.0 · 0 MB
- Languages: American English
- Released: 2021-03-01
- Data updated: 2026-08-25
- User reviews in markdown: https://appshunter.io/ios/app/lqcalc/id1555260645/reviews.md

## What is LQCalc?

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


## Version history (last 3 releases)

### 1.3 — 2022-09-29

iOS 16に対応 レイアウト変更

### 1.2 — 2021-03-14

LQ model (LinearQuadraticModel) Calculator

### 1.1 — 2021-03-01

No release notes.

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## More apps by RADLab, K.K.

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All apps by RADLab, K.K.: https://appshunter.io/developer/1555036017

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*