Accelerating time-resolved MRA with multiecho acquisition

Hyun J. Jeong, Christopher S. Eddleman, Saurabh Shah, Nicole Seiberlich, Mark A. Griswold, H. Hunt Batjer, James C. Carr, Timothy J. Carroll

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A new four-dimensional magnetic resonance angiograpy (MRA) technique called contrast-enhanced angiography with multiecho and radial k-space is introduced, which accelerates the acquisition using multiecho while maintaining a high spatial resolution and increasing the signal-to-noise ratio (SNR). An acceleration factor of approximately 2 is achieved without parallel imaging or undersampling by multiecho (i.e., echo-planar imaging) acquisition. SNR is gained from (1) longer pulse repetition times, which allow more time for T 1 regrowth; (2) decreased specific absorption rate, which allows use of flip angles that maximize contrast at high field; and (3) minimized effects of a transient contrast bolus signal with a shorter temporal footprint. Simulations, phantom studies, and in vivo scans were performed. Contrast-enhanced angiography with multiecho and radial k-space can be combined with parallel imaging techniques such as Generalized Autocalibrating Partially Parallel Acquisitions (GRAPPA) to provide additional 2-fold acceleration in addition to higher SNR to trade off for parallel imaging. This technique can be useful in diagnosing vascular lesions where accurate dynamic information is necessary.

Original languageEnglish (US)
Pages (from-to)1520-1528
Number of pages9
JournalMagnetic Resonance in Medicine
Volume63
Issue number6
DOIs
StatePublished - 2010

Fingerprint

Signal-To-Noise Ratio
Magnetic Resonance Spectroscopy
Angiography
Echo-Planar Imaging
Blood Vessels

Keywords

  • 4D
  • CAMERA
  • Contrast-enhanced
  • MRA
  • Multiecho
  • Radial
  • Time-resolved

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Medicine(all)

Cite this

Jeong, H. J., Eddleman, C. S., Shah, S., Seiberlich, N., Griswold, M. A., Batjer, H. H., ... Carroll, T. J. (2010). Accelerating time-resolved MRA with multiecho acquisition. Magnetic Resonance in Medicine, 63(6), 1520-1528. https://doi.org/10.1002/mrm.22373

Accelerating time-resolved MRA with multiecho acquisition. / Jeong, Hyun J.; Eddleman, Christopher S.; Shah, Saurabh; Seiberlich, Nicole; Griswold, Mark A.; Batjer, H. Hunt; Carr, James C.; Carroll, Timothy J.

In: Magnetic Resonance in Medicine, Vol. 63, No. 6, 2010, p. 1520-1528.

Research output: Contribution to journalArticle

Jeong, HJ, Eddleman, CS, Shah, S, Seiberlich, N, Griswold, MA, Batjer, HH, Carr, JC & Carroll, TJ 2010, 'Accelerating time-resolved MRA with multiecho acquisition', Magnetic Resonance in Medicine, vol. 63, no. 6, pp. 1520-1528. https://doi.org/10.1002/mrm.22373
Jeong HJ, Eddleman CS, Shah S, Seiberlich N, Griswold MA, Batjer HH et al. Accelerating time-resolved MRA with multiecho acquisition. Magnetic Resonance in Medicine. 2010;63(6):1520-1528. https://doi.org/10.1002/mrm.22373
Jeong, Hyun J. ; Eddleman, Christopher S. ; Shah, Saurabh ; Seiberlich, Nicole ; Griswold, Mark A. ; Batjer, H. Hunt ; Carr, James C. ; Carroll, Timothy J. / Accelerating time-resolved MRA with multiecho acquisition. In: Magnetic Resonance in Medicine. 2010 ; Vol. 63, No. 6. pp. 1520-1528.
@article{e2959c6c3f694b53aaeadf9433b2b719,
title = "Accelerating time-resolved MRA with multiecho acquisition",
abstract = "A new four-dimensional magnetic resonance angiograpy (MRA) technique called contrast-enhanced angiography with multiecho and radial k-space is introduced, which accelerates the acquisition using multiecho while maintaining a high spatial resolution and increasing the signal-to-noise ratio (SNR). An acceleration factor of approximately 2 is achieved without parallel imaging or undersampling by multiecho (i.e., echo-planar imaging) acquisition. SNR is gained from (1) longer pulse repetition times, which allow more time for T 1 regrowth; (2) decreased specific absorption rate, which allows use of flip angles that maximize contrast at high field; and (3) minimized effects of a transient contrast bolus signal with a shorter temporal footprint. Simulations, phantom studies, and in vivo scans were performed. Contrast-enhanced angiography with multiecho and radial k-space can be combined with parallel imaging techniques such as Generalized Autocalibrating Partially Parallel Acquisitions (GRAPPA) to provide additional 2-fold acceleration in addition to higher SNR to trade off for parallel imaging. This technique can be useful in diagnosing vascular lesions where accurate dynamic information is necessary.",
keywords = "4D, CAMERA, Contrast-enhanced, MRA, Multiecho, Radial, Time-resolved",
author = "Jeong, {Hyun J.} and Eddleman, {Christopher S.} and Saurabh Shah and Nicole Seiberlich and Griswold, {Mark A.} and Batjer, {H. Hunt} and Carr, {James C.} and Carroll, {Timothy J.}",
year = "2010",
doi = "10.1002/mrm.22373",
language = "English (US)",
volume = "63",
pages = "1520--1528",
journal = "Magnetic Resonance in Medicine",
issn = "0740-3194",
publisher = "John Wiley and Sons Inc.",
number = "6",

}

TY - JOUR

T1 - Accelerating time-resolved MRA with multiecho acquisition

AU - Jeong, Hyun J.

AU - Eddleman, Christopher S.

AU - Shah, Saurabh

AU - Seiberlich, Nicole

AU - Griswold, Mark A.

AU - Batjer, H. Hunt

AU - Carr, James C.

AU - Carroll, Timothy J.

PY - 2010

Y1 - 2010

N2 - A new four-dimensional magnetic resonance angiograpy (MRA) technique called contrast-enhanced angiography with multiecho and radial k-space is introduced, which accelerates the acquisition using multiecho while maintaining a high spatial resolution and increasing the signal-to-noise ratio (SNR). An acceleration factor of approximately 2 is achieved without parallel imaging or undersampling by multiecho (i.e., echo-planar imaging) acquisition. SNR is gained from (1) longer pulse repetition times, which allow more time for T 1 regrowth; (2) decreased specific absorption rate, which allows use of flip angles that maximize contrast at high field; and (3) minimized effects of a transient contrast bolus signal with a shorter temporal footprint. Simulations, phantom studies, and in vivo scans were performed. Contrast-enhanced angiography with multiecho and radial k-space can be combined with parallel imaging techniques such as Generalized Autocalibrating Partially Parallel Acquisitions (GRAPPA) to provide additional 2-fold acceleration in addition to higher SNR to trade off for parallel imaging. This technique can be useful in diagnosing vascular lesions where accurate dynamic information is necessary.

AB - A new four-dimensional magnetic resonance angiograpy (MRA) technique called contrast-enhanced angiography with multiecho and radial k-space is introduced, which accelerates the acquisition using multiecho while maintaining a high spatial resolution and increasing the signal-to-noise ratio (SNR). An acceleration factor of approximately 2 is achieved without parallel imaging or undersampling by multiecho (i.e., echo-planar imaging) acquisition. SNR is gained from (1) longer pulse repetition times, which allow more time for T 1 regrowth; (2) decreased specific absorption rate, which allows use of flip angles that maximize contrast at high field; and (3) minimized effects of a transient contrast bolus signal with a shorter temporal footprint. Simulations, phantom studies, and in vivo scans were performed. Contrast-enhanced angiography with multiecho and radial k-space can be combined with parallel imaging techniques such as Generalized Autocalibrating Partially Parallel Acquisitions (GRAPPA) to provide additional 2-fold acceleration in addition to higher SNR to trade off for parallel imaging. This technique can be useful in diagnosing vascular lesions where accurate dynamic information is necessary.

KW - 4D

KW - CAMERA

KW - Contrast-enhanced

KW - MRA

KW - Multiecho

KW - Radial

KW - Time-resolved

UR - http://www.scopus.com/inward/record.url?scp=77952739869&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77952739869&partnerID=8YFLogxK

U2 - 10.1002/mrm.22373

DO - 10.1002/mrm.22373

M3 - Article

VL - 63

SP - 1520

EP - 1528

JO - Magnetic Resonance in Medicine

JF - Magnetic Resonance in Medicine

SN - 0740-3194

IS - 6

ER -