# A k-Space Odyssey — The Number One k-Space Tutor

> Interactive MRI k-space simulator for medical education and understanding. (iPhone/iPad app by Eltjo Haselhoff.)

- Source: https://appshunter.io/ios/app/a-k-space-odyssey/id1180053143 (this page in markdown: same URL + `.md`)
- Developer: [Eltjo Haselhoff](https://appshunter.io/developer/1126280156)
- Category: Medical, Education
- Price: $11.99
- Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 17+
- Requires: iOS 15.0 · 30 MB
- Languages: American English
- Released: 2016-12-05
- Data updated: 2026-07-17
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/a-k-space-odyssey/id1180053143/reviews.md

## What is A k?

*** As featured on AuntMinnie.com ***

"I have seen a substantial improvement in my trainees’ intuitive understanding of how MRI works since adding use of the App to my lecture series.” - J. Karis, MD. 

This app helps you discover the secrets of 'k-space', the mysterious space that Radiologists and Radiographers need to be familiar with in order to understand the principles of Magnetic Resonance Imaging (MRI). When you are a lecturer or a teacher, this app will be an indispensable tool for explaining the concepts of k-space to your students.

"A k-Space Odyssey" allows you to play interactively with various MRI scan parameters and shows you, with blazingly fast real-time performance, the effect on the acquired clinical image. This app not only gives you intuitive hands-on experience with Half Scan, Partial Field-Of-View, Voxel Size and Hanning filters, but also covers advanced imaging techniques such as Turbo Imaging, Parallel Imaging, real-time Spiral Imaging, Compressed Sensing and Dynamic Contrast MRA (with real-time interactive Keyhole Imaging).

The camera plug-in allows you to use any picture in your iPhone's Photo Album and manipulate them as if they were acquired with an MR scanner. You can take pictures from text books or straight from the console of any MR scanner, or load geometric pictures (concentric triangles, snow crystals, spirals) to get a profound understanding of the amazing properties of k-space.

The app includes an extensive, interactive user manual that explains all scan parameters in simple wording, but with sufficient detail to quickly find your way home from anywhere in k-space.

DISCLAIMER
This app is NOT intended to provide any medical information, medical diagnoses nor treatment advice whatsoever. Always seek a doctor’s advice in addition to using this app and before making any medical decisions.

## Key features

- Interactive k-space parameter manipulation
- Real-time image acquisition simulation
- Advanced imaging technique exploration
- Image import for parameter testing
- Interactive user manual

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/a-k-space-odyssey/id1180053143/reviews.md

### 5/5 — Awesome Training Tool

*2018-06-18*

Nice job Eltjo

John Pitts

**Developer response:** Thanks John! Glad you enjoy it.

### 5/5 — Great teaching tool!

*2018-06-14*

This is a wonderful app that helps residents and fellows develop an intuitive feel for k-space.  I follow-up my lectures on phase and frequency encoding with an introduction of the App.  We run the App on my iPad or iPhone and project the display using AppleTV.  We then discuss, and get immediate visual feedback, on how multiple different k-space scenarios impact image quality.  Since adding use of the App to my MRI lecture series I have seen a significant improvement in my residents and fellows understanding of how MRI works.  I strongly encourage MRI technologists as well as radiology residents and fellows to download the App and utilize it as a tool to improve their ability to help our patients.

**Developer response:** Thank you very much for your kind comments, and great to read that your residents and fellows are getting a more profound grip on MRI thanks to this app - that was exactly my objective!

## Frequently asked questions about A k

### What is A k-Space Odyssey?

A k-Space Odyssey is an educational tool designed to help users understand the principles of Magnetic Resonance Imaging (MRI) by interactively exploring k-space. It allows for real-time simulation of how different scan parameters affect the final image.

### Who is A k-Space Odyssey for?

This app is intended for lecturers, teachers, radiologists, radiographers, and students who need to understand the concepts of k-space and MRI principles. It provides an intuitive, hands-on learning experience.

### What advanced imaging techniques does A k-Space Odyssey cover?

The app covers advanced techniques including Turbo Imaging, Parallel Imaging, real-time Spiral Imaging, Compressed Sensing, and Dynamic Contrast MRA with real-time interactive Keyhole Imaging.

### Can I use my own images with A k-Space Odyssey?

Yes, the camera plug-in allows you to import pictures from your iPhone's Photo Album, including those from textbooks or MR scanners, to manipulate them as if acquired with an MR scanner.

### How much does A k-Space Odyssey cost?

A k-Space Odyssey is a paid application priced at $11.99. It is a one-time purchase and does not have any in-app purchases or advertisements.

### Does A k-Space Odyssey provide medical advice?

No, A k-Space Odyssey is explicitly not intended to provide any medical information, diagnoses, or treatment advice. Users should always consult a doctor for medical guidance.

### What devices does A k-Space Odyssey support?

A k-Space Odyssey is supported on iPhone and iPod devices. It has an age rating of 17+.

### How often is A k-Space Odyssey updated?

The app was last updated on October 1, 2023, to version 2.2. This indicates a reasonable update frequency for a specialized educational tool.

## Version history (last 5 releases)

### 2.2 — 2023-10-01

Compatibility upgrade for the latest generation of iPhones.

### 2.0 — 2019-12-01

- Improved look
- New zoom function - allows large display of k-space
- Context-sensitive help pages
- Updated and improved help texts
- New sample images

### 1.9.1 — 2018-06-25

Improvements in help texts

### 1.9 — 2018-06-18

- Compressed Sensing reconstructor
- Updated explanatory texts

### 1.8 — 2017-11-23

- iPhone X compatibility
- Fast scroll buttons in parameter menu (tap and hold)

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All apps by Eltjo Haselhoff: https://appshunter.io/developer/1126280156

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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 2026-07-17.*