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arXiv · 2512.02748

BART Streams: Real-time Reconstruction Using a Modular Framework for Pipeline Processing

Philip Schaten·Moritz Blumenthal·Bernhard Rapp·Christina Unterberg-Buchwald·Martin Uecker
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Abstract

Purpose: To create modular solutions for interactive real-time MRI using reconstruction algorithms implemented in BART. Methods: A new protocol for streaming of multidimensional arrays is presented and integrated into BART. The new functionality is demonstrated using examples for cardiac interactive real-time MRI based on radial FLASH, where iterative reconstruction is combined with advanced features such as dynamic coil compression and gradient-delay orrection. We analyze the latency of the reconstruction and measure end-to-end latency of the full imaging process. Results: Reconstruction pipelines with iterative reconstruction and advanced functionality were built in a modular way using scripting. Latency measurements demonstrate latency sufficient for interactive real-time MRI, on the order of 30 ms for BART processing and network transfer time, or 200 ms for end-to-end latency including acquisition, vendor processing, and display. Conclusion: With the new streaming capabilities, real-time reconstruction pipelines can be assembled using BART in a flexible way, enabling rapid prototyping of advanced applications such as interactive real-time MRI.

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Philip Schaten, Moritz Blumenthal, Bernhard Rapp, Christina Unterberg-Buchwald, Martin Uecker. 2025-12-02. BART Streams: Real-time Reconstruction Using a Modular Framework for Pipeline Processing. https://doi.org/10.1002/mrm.70455

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