Fast decomposition of water and lipid using a GRASE technique with the IDEAL algorithm

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Three-point Dixon techniques achieve good lipid-water separation by estimating the phase due to field inhomogeneities. Recently it was demonstrated that the combination of an iterative algorithm (iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL)) with a fast spin-echo (FSE) three-point Dixon method yielded robust lipid-water decomposition. As an alternative to FSE, the gradient-and spin-echo (GRASE) technique has been developed for efficient data collection. In this work we present a method for lipid-water separation by combining IDEAL with the GRASE technique. An approach to correct for errors in the lipid-water decomposition caused by phase distortions due to the switching of the readout gradient polarities inherent to GRASE is presented. The IDEAL-GRASE technique is demonstrated in phantoms and in vivo for various applications, including pelvic, musculoskeletal, and (breath-hold) cardiac imaging.

Original languageEnglish (US)
Pages (from-to)1047-1057
Number of pages11
JournalMagnetic Resonance in Medicine
Volume57
Issue number6
DOIs
StatePublished - Jun 2007

Fingerprint

Lipids
Water
Least-Squares Analysis
Fats

Keywords

  • Chemical-shift imaging
  • Dixon
  • GRASE
  • Lipid-water decomposition

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Fast decomposition of water and lipid using a GRASE technique with the IDEAL algorithm. / Li, Zhiqiang; Gmitro, Arthur F; Bilgin, Ali; Altbach, Maria I.

In: Magnetic Resonance in Medicine, Vol. 57, No. 6, 06.2007, p. 1047-1057.

Research output: Contribution to journalArticle

@article{d59634d67f7342c2a7a346b6cc8c3779,
title = "Fast decomposition of water and lipid using a GRASE technique with the IDEAL algorithm",
abstract = "Three-point Dixon techniques achieve good lipid-water separation by estimating the phase due to field inhomogeneities. Recently it was demonstrated that the combination of an iterative algorithm (iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL)) with a fast spin-echo (FSE) three-point Dixon method yielded robust lipid-water decomposition. As an alternative to FSE, the gradient-and spin-echo (GRASE) technique has been developed for efficient data collection. In this work we present a method for lipid-water separation by combining IDEAL with the GRASE technique. An approach to correct for errors in the lipid-water decomposition caused by phase distortions due to the switching of the readout gradient polarities inherent to GRASE is presented. The IDEAL-GRASE technique is demonstrated in phantoms and in vivo for various applications, including pelvic, musculoskeletal, and (breath-hold) cardiac imaging.",
keywords = "Chemical-shift imaging, Dixon, GRASE, Lipid-water decomposition",
author = "Zhiqiang Li and Gmitro, {Arthur F} and Ali Bilgin and Altbach, {Maria I}",
year = "2007",
month = "6",
doi = "10.1002/mrm.21232",
language = "English (US)",
volume = "57",
pages = "1047--1057",
journal = "Magnetic Resonance in Medicine",
issn = "0740-3194",
publisher = "John Wiley and Sons Inc.",
number = "6",

}

TY - JOUR

T1 - Fast decomposition of water and lipid using a GRASE technique with the IDEAL algorithm

AU - Li, Zhiqiang

AU - Gmitro, Arthur F

AU - Bilgin, Ali

AU - Altbach, Maria I

PY - 2007/6

Y1 - 2007/6

N2 - Three-point Dixon techniques achieve good lipid-water separation by estimating the phase due to field inhomogeneities. Recently it was demonstrated that the combination of an iterative algorithm (iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL)) with a fast spin-echo (FSE) three-point Dixon method yielded robust lipid-water decomposition. As an alternative to FSE, the gradient-and spin-echo (GRASE) technique has been developed for efficient data collection. In this work we present a method for lipid-water separation by combining IDEAL with the GRASE technique. An approach to correct for errors in the lipid-water decomposition caused by phase distortions due to the switching of the readout gradient polarities inherent to GRASE is presented. The IDEAL-GRASE technique is demonstrated in phantoms and in vivo for various applications, including pelvic, musculoskeletal, and (breath-hold) cardiac imaging.

AB - Three-point Dixon techniques achieve good lipid-water separation by estimating the phase due to field inhomogeneities. Recently it was demonstrated that the combination of an iterative algorithm (iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL)) with a fast spin-echo (FSE) three-point Dixon method yielded robust lipid-water decomposition. As an alternative to FSE, the gradient-and spin-echo (GRASE) technique has been developed for efficient data collection. In this work we present a method for lipid-water separation by combining IDEAL with the GRASE technique. An approach to correct for errors in the lipid-water decomposition caused by phase distortions due to the switching of the readout gradient polarities inherent to GRASE is presented. The IDEAL-GRASE technique is demonstrated in phantoms and in vivo for various applications, including pelvic, musculoskeletal, and (breath-hold) cardiac imaging.

KW - Chemical-shift imaging

KW - Dixon

KW - GRASE

KW - Lipid-water decomposition

UR - http://www.scopus.com/inward/record.url?scp=34250336900&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250336900&partnerID=8YFLogxK

U2 - 10.1002/mrm.21232

DO - 10.1002/mrm.21232

M3 - Article

C2 - 17534901

AN - SCOPUS:34250336900

VL - 57

SP - 1047

EP - 1057

JO - Magnetic Resonance in Medicine

JF - Magnetic Resonance in Medicine

SN - 0740-3194

IS - 6

ER -