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Simple analytic variable density spiral design.

Dong-hyun Kim1, Elfar Adalsteinsson, Daniel M Spielman

  • 1Radiological Sciences Laboratory, Department of Radiology, Stanford University, Stanford, California 94305-5488, USA. dhkim@stanford.edu

Magnetic Resonance in Medicine
|June 20, 2003
PubMed
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This study presents a simple analytic solution for designing flexible variable density spiral trajectories. The method allows for real-time waveform design, even on scanners with limited computational power.

Area of Science:

  • Medical Imaging
  • Magnetic Resonance Imaging

Background:

  • Variable density spiral trajectories are crucial for applications like MR fluoroscopy, cardiac imaging, and MR spectroscopic imaging.
  • Designing these trajectories often requires significant computational resources.

Purpose of the Study:

  • To present a simple analytic solution for designing flexible variable density spiral trajectory waveforms.
  • To enable real-time waveform prescription on scanners with limited computational power.

Main Methods:

  • Developed a simple analytic solution for designing variable density spiral trajectories.
  • Incorporated both slew rate-limited and amplitude-limited regimes into the design process.

Main Results:

  • A flexible set of variable density spiral trajectory waveforms can be designed.

Related Experiment Videos

  • The method is suitable for real-time waveform prescription on scanners with limited computational power.

    • Conclusions:

    • The presented analytic solution offers an efficient method for designing variable density spiral trajectories.
    • This approach enhances the feasibility of advanced MRI techniques on less powerful hardware.