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arxiv: 2512.00011 · v1 · submitted 2025-10-15 · 💻 cs.OH

MRSeqStudio: MRI Sequence Design and Simulation as a Service in a Free and Open-Source Web Platform

Pablo Villacorta-Aylagas , Manuel Rodr\'iguez-Cayetano , Carlos Castillo-Passi , Pablo Irarr\'azaval-Mena , Federico Simmross-Wattenberg , Carlos Alberola-L\'opez This is my paper

Pith reviewed 2026-05-18 06:50 UTC · model grok-4.3

classification 💻 cs.OH
keywords MRI sequence designweb-based simulationKomaMRIopen source platformMRI educationsequence developmentphysics simulatorbrowser tool
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The pith

MRSeqStudio lets users design and simulate MRI sequences directly in a web browser without local installation.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper presents MRSeqStudio as a web-based platform that integrates a custom sequence designer at the front end with the KomaMRI physics simulator at the back end. This setup delivers MRI sequence development and simulation as an online service, removing the need for users to install or run software locally. The authors position the tool as suitable for both education and research because it aims to balance accessibility with technical capability. The full code is released openly so that anyone can also run their own copy on a server. If the integration works as described, it would let more people experiment with MRI sequences quickly and share results without hardware barriers.

Core claim

MRSeqStudio is presented as an all-in-one web platform that combines a sequence designer interface with the KomaMRI physics-based simulator to provide MRI sequence design and simulation as a service, requiring no local installation while remaining open source for optional self-deployment.

What carries the argument

The MRSeqStudio web application, which connects a browser-based sequence designer to the KomaMRI simulator backend to handle interactive design and physics simulation.

If this is right

  • Users gain the ability to prototype and test MRI sequences from any device with a browser and internet connection.
  • The same environment supports both classroom demonstrations and more advanced sequence refinement for research.
  • Open-source release allows interested groups to inspect the code or set up private instances on their own servers.
  • Technical flexibility is preserved because the back-end simulator can still perform detailed physics calculations.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Wider adoption could shorten the time students need to move from learning MRI concepts to running their own simulations.
  • The online format might make it easier for teams in different locations to review and iterate on the same sequence design.
  • If browser performance improves over time, the same architecture could later support more computationally demanding sequence types.
  • Similar web-service patterns might be applied to other physics-based simulators that currently require local setup.

Load-bearing premise

The combination of the web front end and KomaMRI back end supplies enough speed, accuracy, and responsiveness for actual education and research work without browser constraints getting in the way.

What would settle it

A researcher loading a typical multi-shot sequence into the web tool and finding either noticeably slower run times or different image results than the same sequence produces when run locally with KomaMRI.

read the original abstract

We present MRSeqStudio, a new all-in-one web-based tool for MRI sequence development and simulation, with the physics-based simulator KomaMRI running at the back-end and our own sequence designer at the front-end. It combines accessibility, interactivity and technical flexibility, within an environment suitable for both education and research. Our tool provides MR sequence design and simulation as a service, with no local installation needed by the user; alternatively, the code is publicly available on GitHub, for users who wish to deploy the application on their own server.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

1 major / 2 minor

Summary. The manuscript presents MRSeqStudio, a web-based all-in-one platform for MRI sequence design and simulation. It integrates a custom frontend sequence designer with the KomaMRI physics-based simulator running as the backend, offering the service without requiring local installation by the user while also providing open-source code on GitHub for self-deployment. The work targets both educational and research applications by combining accessibility, interactivity, and technical flexibility.

Significance. If the described web integration maintains sufficient fidelity, performance, and interactivity, the platform could meaningfully lower barriers to MRI sequence development for education and collaborative research by eliminating the need for local setup. The open-source release is a clear strength that supports reproducibility and community extension. However, the absence of any quantitative validation data limits the ability to evaluate whether the tool meets the practical requirements for research use cases.

major comments (1)
  1. [Abstract and overall architecture description] The central claim that the web platform delivers MRI sequence design and simulation 'as a service' suitable for research (without local deployment or browser limitations compromising results) is load-bearing but unsupported by evidence. The manuscript describes the architecture and goals in the abstract and introduction but reports no quantitative benchmarks, such as comparisons of signal curves, k-space data, reconstructed images, runtime performance, or accuracy against native/local KomaMRI runs or real scanner data. This leaves the weakest assumption untested.
minor comments (2)
  1. [Methods/Implementation] Clarify the exact scope of the 'own sequence designer' frontend versus reliance on KomaMRI features, including any custom extensions or limitations in sequence parameter handling.
  2. [Discussion or Implementation] Add a dedicated section or subsection on deployment options, browser compatibility constraints, and any server-side requirements to help readers assess practical adoption.

Simulated Author's Rebuttal

1 responses · 0 unresolved

We thank the referee for the constructive feedback on our manuscript. We agree that additional quantitative evidence would better support the suitability of the web platform for research applications. We respond to the major comment below and will update the manuscript accordingly.

read point-by-point responses

  1. Referee: [Abstract and overall architecture description] The central claim that the web platform delivers MRI sequence design and simulation 'as a service' suitable for research (without local deployment or browser limitations compromising results) is load-bearing but unsupported by evidence. The manuscript describes the architecture and goals in the abstract and introduction but reports no quantitative benchmarks, such as comparisons of signal curves, k-space data, reconstructed images, runtime performance, or accuracy against native/local KomaMRI runs or real scanner data. This leaves the weakest assumption untested.

    Authors: We thank the referee for highlighting this gap. All MRI simulations in MRSeqStudio are executed server-side via the established KomaMRI physics engine; the browser is used only for sequence design input and result visualization, so client-side limitations do not affect numerical accuracy or fidelity. Results are therefore equivalent to native local KomaMRI runs. To address the lack of explicit evidence, we will revise the manuscript to add a dedicated validation section containing quantitative benchmarks: direct comparisons of signal curves, k-space data, and reconstructed images between the web service and local KomaMRI executions, plus runtime performance metrics for representative sequences. These additions will substantiate the claim that the service is suitable for research use without local deployment. Direct validation against real scanner data is outside the scope of the current platform-description paper, but the tool is explicitly designed to enable such user-led comparisons. revision: yes

Circularity Check

0 steps flagged

No circularity: software tool description with no derivation or fitted claims

full rationale

The manuscript presents MRSeqStudio as a web-based integration of the existing KomaMRI simulator with a custom frontend for sequence design. No equations, predictions, parameter fits, or uniqueness theorems appear in the provided text or abstract. The central contribution is the open-source platform architecture and accessibility claim, which stands as an independent engineering description rather than a reduction of any result to its own inputs by construction. No self-citation load-bearing steps or ansatz smuggling are present.

Axiom & Free-Parameter Ledger

0 free parameters · 0 axioms · 0 invented entities

No free parameters, axioms, or invented entities are introduced; the work is a software integration of the pre-existing KomaMRI simulator.

pith-pipeline@v0.9.0 · 5652 in / 1002 out tokens · 30793 ms · 2026-05-18T06:50:33.589589+00:00 · methodology

discussion (0)

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Reference graph

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