# eCura — eCura System

> eCura System (iPhone/iPad app by Yoichi Kakuta.)

- Source: https://appshunter.io/ios/app/ecura/id1490245005 (this page in markdown: same URL + `.md`)
- Developer: [Yoichi Kakuta](https://appshunter.io/developer/665689237)
- Category: Health & Fitness
- Price: Free
- Age rating: 17+
- Requires: iOS 13.1 · 1 MB
- Languages: English, Japanese, Chinese
- Released: 2020-02-19
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/ecura/id1490245005/reviews.md

## What is eCura?

Lymph node metastasis (LNM) was found in only 5–10% of patients with early gastric cancer. The "eCura system" is a scoring system to stratify curability after ESD for early gastric cancer. Five risk factors for LNM were weighted with point values: three points for lymphatic invasion and 1 point each for tumor size >30 mm, positive vertical margin, venous invasion, and submucosal invasion ≥500μm. The patients were categorized into three LNM risk groups: low (0–1 point: 2.5% risk), intermediate (2–4 points: 6.7%), and high (5–7 points: 22.7%).

For more information, see the reference below.
Am J Gastroenterol. 2017 Jun;112(6):874-881.
A Scoring System to Stratify Curability after Endoscopic Submucosal Dissection for Early Gastric Cancer: "eCura system".
Hatta W, Gotoda T, Oyama T, Kawata N, Takahashi A, Yoshifuku Y, Hoteya S, Nakagawa M, Hirano M, Esaki M, Matsuda M, Ohnita K, Yamanouchi K, Yoshida M, Dohi O, Takada J, Tanaka K, Yamada S, Tsuji T, Ito H, Hayashi Y, Nakaya N, Nakamura T, Shimosegawa T.

You can view the application help by tapping a title bar.

DISCLAIMER: This application is intended for educational or research purposes only. It does not create any patient-physician relationship, and should not be used as a substitute for professional diagnosis and treatment.

[Developer]
2020 東北大学病院消化器内科・大腸グループ
http://www.gastroente.med.tohoku.ac.jp/
tohoku.ibd@gmail.com
Kenichi Negoro, MD, PhD
Yoichi Kakuta, MD, PhD
Waku Hatta, MD, PhD (Adviser)
Xiaoyi Jin, MD, PhD (Translation)


## Version history (last 2 releases)

### 1.1.0 — 2020-02-24

Ver 1.1.0　Adjusted font size.

### 1.0.0 — 2020-02-19

No release notes.

## More apps by Yoichi Kakuta

- [Geno-P](https://appshunter.io/ios/app/geno-p/id665689234)
- [IBD-QR](https://appshunter.io/ios/app/ibd-qr/id1459841920)
- [BEST-J score](https://appshunter.io/ios/app/best-j-score/id1492914336)
- [CHAMPS score](https://appshunter.io/ios/app/champs-score/id1565716902)

All apps by Yoichi Kakuta: https://appshunter.io/developer/665689237

## Related topics

[ecura](https://appshunter.io/ios/topics/ecura)

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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 2026-05-16.*