Distributed spirals: A new class of three-dimensional k-space trajectories

Dallas C. Turley, James Pipe

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This work presents a new class of three-dimensional spiral based-trajectories for sampling magnetic resonance data. The distributed spirals trajectory efficiently traverses a cylinder or sphere or intermediate shape in k-space. The trajectory is shown to be nearly as efficient as a conventional stack of spirals trajectory in terms of scan time and signal-to-noise ratio, while reducing coherent aliasing in all three spatial directions and reducing Gibbs ringing due to the nature of collecting data from a sphere in k-space. The trajectory uses a single two-dimensional spiral waveform with the addition of a single orthogonal waveform which is scaled with each repetition, making it relatively easy to implement. Blurring from off-resonance only occurs in two dimensions due to the temporal nature of the sampling.

Original languageEnglish (US)
Pages (from-to)413-419
Number of pages7
JournalMagnetic Resonance in Medicine
Volume70
Issue number2
DOIs
StatePublished - Aug 1 2013
Externally publishedYes

Fingerprint

Signal-To-Noise Ratio
Magnetic Resonance Spectroscopy
Direction compound

Keywords

  • golden angle
  • k-space trajectory
  • spiral MRI

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Distributed spirals : A new class of three-dimensional k-space trajectories. / Turley, Dallas C.; Pipe, James.

In: Magnetic Resonance in Medicine, Vol. 70, No. 2, 01.08.2013, p. 413-419.

Research output: Contribution to journalArticle

@article{598fe7cf812744d2845a3dc566b516bf,
title = "Distributed spirals: A new class of three-dimensional k-space trajectories",
abstract = "This work presents a new class of three-dimensional spiral based-trajectories for sampling magnetic resonance data. The distributed spirals trajectory efficiently traverses a cylinder or sphere or intermediate shape in k-space. The trajectory is shown to be nearly as efficient as a conventional stack of spirals trajectory in terms of scan time and signal-to-noise ratio, while reducing coherent aliasing in all three spatial directions and reducing Gibbs ringing due to the nature of collecting data from a sphere in k-space. The trajectory uses a single two-dimensional spiral waveform with the addition of a single orthogonal waveform which is scaled with each repetition, making it relatively easy to implement. Blurring from off-resonance only occurs in two dimensions due to the temporal nature of the sampling.",
keywords = "golden angle, k-space trajectory, spiral MRI",
author = "Turley, {Dallas C.} and James Pipe",
year = "2013",
month = "8",
day = "1",
doi = "10.1002/mrm.24475",
language = "English (US)",
volume = "70",
pages = "413--419",
journal = "Magnetic Resonance in Medicine",
issn = "0740-3194",
publisher = "John Wiley and Sons Inc.",
number = "2",

}

TY - JOUR

T1 - Distributed spirals

T2 - A new class of three-dimensional k-space trajectories

AU - Turley, Dallas C.

AU - Pipe, James

PY - 2013/8/1

Y1 - 2013/8/1

N2 - This work presents a new class of three-dimensional spiral based-trajectories for sampling magnetic resonance data. The distributed spirals trajectory efficiently traverses a cylinder or sphere or intermediate shape in k-space. The trajectory is shown to be nearly as efficient as a conventional stack of spirals trajectory in terms of scan time and signal-to-noise ratio, while reducing coherent aliasing in all three spatial directions and reducing Gibbs ringing due to the nature of collecting data from a sphere in k-space. The trajectory uses a single two-dimensional spiral waveform with the addition of a single orthogonal waveform which is scaled with each repetition, making it relatively easy to implement. Blurring from off-resonance only occurs in two dimensions due to the temporal nature of the sampling.

AB - This work presents a new class of three-dimensional spiral based-trajectories for sampling magnetic resonance data. The distributed spirals trajectory efficiently traverses a cylinder or sphere or intermediate shape in k-space. The trajectory is shown to be nearly as efficient as a conventional stack of spirals trajectory in terms of scan time and signal-to-noise ratio, while reducing coherent aliasing in all three spatial directions and reducing Gibbs ringing due to the nature of collecting data from a sphere in k-space. The trajectory uses a single two-dimensional spiral waveform with the addition of a single orthogonal waveform which is scaled with each repetition, making it relatively easy to implement. Blurring from off-resonance only occurs in two dimensions due to the temporal nature of the sampling.

KW - golden angle

KW - k-space trajectory

KW - spiral MRI

UR - http://www.scopus.com/inward/record.url?scp=84881157335&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881157335&partnerID=8YFLogxK

U2 - 10.1002/mrm.24475

DO - 10.1002/mrm.24475

M3 - Article

C2 - 23042669

AN - SCOPUS:84881157335

VL - 70

SP - 413

EP - 419

JO - Magnetic Resonance in Medicine

JF - Magnetic Resonance in Medicine

SN - 0740-3194

IS - 2

ER -