Optimized gradient waveforms for spiral scanning

K. F. King, T. K F Foo, C. R. Crawford

Research output: Contribution to journalArticle

Abstract

Spiral scanning gradient waveforms can be optimized with respect to blurring from off-resonance effects by minimizing the readout time. This is achieved by maximizing the gradient amplitude during the scan so that the edge of k-space is reached as quickly as possible. Gradient hardware constraints are incorporated by considering a circuit model for the gradient coil and amplifier. The optimized gradient waveforms are determined by a set of coupled differential equations. The resulting solutions have shorter readout time than solutions that do not consider the circuit model.

Original languageEnglish (US)
Pages (from-to)156-160
Number of pages5
JournalMagnetic Resonance in Medicine
Volume34
Issue number2
DOIs
StatePublished - 1995
Externally publishedYes

Keywords

  • fast imaging
  • magnetic resonance imaging
  • spiral scanning

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

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