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I love to work.
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I love to work.
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NCastro-FAU/README.md

Nyvenn Alves de Castro

Hi!

Nice to meet you.

First of all, I like to code. This Github was created as a small backup of my main work, tackling MR-related problems I face during my day-to-day.

About me: MRI physicist, PhD candidate at University Hospital Erlangen / FAU Erlangen-Nürnberg.

I write MRI sequences and the reconstructions that go with them: mainly non-Cartesian and reconstruction (basic SENSE, TV/TGV, L1, LLR + SSR, Toeplitz on GPU), trajectory and gradient-impulse-response (GIRF) correction, Maxwell corrections, B0 corrections and Pulseq sequence programming.

Repositories

  • MIC: motion-informed coil selection for speech MRI (ISMRM 2026)
  • mri-recon-tutorials: GRAPPA, ESPIRiT, PICS, B0 correction, navigator corrections, unrolled DL recon, from scratch
  • mri-apple-silicon-gpu: MRI reconstruction on Apple GPUs with MLX and PyTorch MPS (NUFFT, Toeplitz PICS)
  • pulseq-mrzero-sequences: GRE, radial and spiral in PyPulseq, simulated with MR-zero

Tools: Python (NumPy, PyTorch, MLX), Pulseq, BART, MATLAB, Siemens scanners mainly (0.55 T Free.Max, 3 T Cima.X)

Contact: nyvenn.castro@fau.de

Popular repositories Loading

  1. MIC---Motion-Informed-Coil-Selection MIC---Motion-Informed-Coil-Selection Public

    Motion-Informed Coil selection for real-time speech MRI: ranks receiver channels by motion-driven k-space phase variance (ISMRM 2026)

    Python 1

  2. mri-recon-tutorials mri-recon-tutorials Public

    MRI reconstruction from scratch in Python: GRAPPA, ESPIRiT, PICS, B0 correction, EPI ghost and B0-drift correction, unrolled deep-learning recon

    Python

  3. mri-apple-silicon-gpu mri-apple-silicon-gpu Public

    MRI reconstruction on Apple-silicon GPUs: multi-coil FFT, Kaiser-Bessel NUFFT in MLX and PyTorch MPS, Toeplitz PICS (x8-x18 vs CPU)

    Python

  4. NCastro-FAU NCastro-FAU Public