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Updated: Jun 13, 2026

Preparation of Free-Surface Hyperbolic Water Vortices
04:35

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Published on: July 28, 2023

Spiral demystified.

Bénédicte M A Delattre1, Robin M Heidemann, Lindsey A Crowe

  • 1Radiology Clinic, Geneva University Hospital and Faculty of Medicine, University of Geneva, 1211 Geneva 14, Switzerland. benedicte.delattre@hcuge.ch

Magnetic Resonance Imaging
|April 23, 2010
PubMed
Summary
This summary is machine-generated.

Spiral imaging offers advantages in dynamic MRI like cardiac and brain imaging. This review details challenges in spiral imaging acquisition and reconstruction, alongside proposed solutions.

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Area of Science:

  • Medical Imaging
  • Magnetic Resonance Imaging (MRI)

Background:

  • Spiral acquisition schemes provide benefits like flow compensation and motion robustness.
  • Key applications include dynamic MRI for cardiac and functional brain imaging.

Purpose of the Study:

  • To review the challenges associated with spiral imaging.
  • To present solutions developed in the literature for these challenges.

Main Methods:

  • Discussion of gradient waveform and hardware design considerations.
  • Review of k-space data reconstruction methods for non-Cartesian grids.
  • Examination of extensions for parallel imaging algorithms like GRAPPA and SENSE.
  • Analysis of artifacts including blurring and off-resonance effects.

Main Results:

  • Spiral imaging presents practical difficulties in gradient design and data reconstruction.
  • Existing parallel imaging techniques require adaptation for spiral data.
  • Artifacts such as blurring and off-resonance effects are significant concerns.

Conclusions:

  • Despite challenges, spiral imaging remains valuable for dynamic MRI applications.
  • Ongoing research focuses on overcoming reconstruction and artifact issues.
  • Solutions are being developed to enhance the utility of spiral imaging techniques.