Adjustment and Basic Imaging Sequences for the Open-Source MRI4ALL Console Using the PyPulseq and MaRCoS Libraries

作者：Anaïs Artiges, Kai Tobias Block, Luoyao Chen, Lincoln Craven‐Brightman, Jonathan Martín, Vlad Negnevitsky, Amanpreet Singh Saimbhi, Jason Stockmann, Heng Sun, Roy Wiggins, Ruoxun Zi, Sairam Geethanath · 发表于：Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition · 年份：2024 · DOI：10.58530/2024/4683 · 被引用次数：1 · 研究领域：Medical Imaging Techniques and Applications、Advanced MRI Techniques and Applications、Atomic and Subatomic Physics Research

Motivation: Open-source imaging significantly advances MR accessibility. The construction of an open-source scanner required the development of an open-source consoleGoal(s): This work aims to develop acquisition tools to calibrate the system hardware, acquire signals in the form of 1D, 2D, and 3D images, and provide a visualization of the acquisition trajectories. Approach: Using the PyPulseq and the MaRCoS libraries, we implemented the adjustment (RF, gradients, shim), and acquisition sequences (1D, 2D, 3D) as well as a plotting tool for Cartesian trajectories. Results: The acquisition tools were run on the scanner, successfully defining calibration values, obtaining signals, and plotting trajectories. Impact: As part of the MRI4ALL Hackathon, this work integrates and advances a toolset for acquisition support, compatible with vendor-agnostic libraries like PyPylseq and MaRCoS. This demonstration contributes to the expedited construction of a standalone low-field MRI scanner in a laboratory.