High efficiency multishot interleaved spiral-in/out: Acquisition for high-resolution BOLD fMRI

Youngkyoo Jung, Alexey A. Samsonov, Thomas T. Liu, Giedrius T. Buracas

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Growing demand for high spatial resolution blood oxygenation level dependent (BOLD) functional magnetic resonance imaging faces a challenge of the spatial resolution versus coverage or temporal resolution tradeoff, which can be addressed by methods that afford increased acquisition efficiency. Spiral acquisition trajectories have been shown to be superior to currently prevalent echo-planar imaging in terms of acquisition efficiency, and high spatial resolution can be achieved by employing multiple-shot spiral acquisition. The interleaved spiral in/out trajectory is preferred over spiral-in due to increased BOLD signal contrast-to-noise ratio (CNR) and higher acquisition efficiency than that of spiral-out or noninterleaved spiral in/out trajectories (Law & Glover.

Original languageEnglish (US)
Pages (from-to)420-428
Number of pages9
JournalMagnetic Resonance in Medicine
Issue number2
StatePublished - Aug 1 2013
Externally publishedYes


  • BOLD
  • functional MRI
  • high resolution
  • spiral imaging

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging


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