Artifact-free black-blood cine cardiac imaging in a single breath-hold

Ahmed S. Fahmy, Li Pan, Nael Fakhry Osman

Research output: Contribution to journalArticle

Abstract

Fast imaging using the STimulated Echo Acquisition Mode (STEAM) sequence can produce cine images of the heart with black-blood contrast. Nevertheless, correction of deformation-related artifacts is required in order to maintain myocardial signal throughout the cardiac cycle. Recent work by our group has eliminated this artifact by combining two STEAM sequences acquired with two different demodulation gradients. Unfortunately, these two STEAM sequences were acquired on two separate breath-holds; thus, scan time doubled. In this work, we present a technique to reduce the total scan time by one half, without sacrificing image quality. The technique is based on interleaving two demodulations within one acquisition in order to obtain quality cine images of the heart in a single breath-hold. The technique was tested on animal models and human subjects, and the impact of interleaved acquisition on image quality was studied using quantitative and qualitative measures.

Original languageEnglish (US)
Pages (from-to)1303-1310
Number of pages8
JournalMagnetic Resonance Imaging
Volume24
Issue number10
DOIs
StatePublished - Dec 2006

Fingerprint

Artifacts
Image quality
blood
artifacts
acquisition
Blood
Demodulation
Imaging techniques
echoes
demodulation
Animal Models
Animals
animal models
gradients
cycles

Keywords

  • Black blood
  • STEAM
  • Stimulated echo

ASJC Scopus subject areas

  • Biophysics
  • Clinical Biochemistry
  • Structural Biology
  • Radiology Nuclear Medicine and imaging
  • Condensed Matter Physics

Cite this

Artifact-free black-blood cine cardiac imaging in a single breath-hold. / Fahmy, Ahmed S.; Pan, Li; Osman, Nael Fakhry.

In: Magnetic Resonance Imaging, Vol. 24, No. 10, 12.2006, p. 1303-1310.

Research output: Contribution to journalArticle

@article{2b1d2a3940044bec95ef6eec38146bed,
title = "Artifact-free black-blood cine cardiac imaging in a single breath-hold",
abstract = "Fast imaging using the STimulated Echo Acquisition Mode (STEAM) sequence can produce cine images of the heart with black-blood contrast. Nevertheless, correction of deformation-related artifacts is required in order to maintain myocardial signal throughout the cardiac cycle. Recent work by our group has eliminated this artifact by combining two STEAM sequences acquired with two different demodulation gradients. Unfortunately, these two STEAM sequences were acquired on two separate breath-holds; thus, scan time doubled. In this work, we present a technique to reduce the total scan time by one half, without sacrificing image quality. The technique is based on interleaving two demodulations within one acquisition in order to obtain quality cine images of the heart in a single breath-hold. The technique was tested on animal models and human subjects, and the impact of interleaved acquisition on image quality was studied using quantitative and qualitative measures.",
keywords = "Black blood, STEAM, Stimulated echo",
author = "Fahmy, {Ahmed S.} and Li Pan and Osman, {Nael Fakhry}",
year = "2006",
month = "12",
doi = "10.1016/j.mri.2006.08.008",
language = "English (US)",
volume = "24",
pages = "1303--1310",
journal = "Magnetic Resonance Imaging",
issn = "0730-725X",
publisher = "Elsevier Inc.",
number = "10",

}

TY - JOUR

T1 - Artifact-free black-blood cine cardiac imaging in a single breath-hold

AU - Fahmy, Ahmed S.

AU - Pan, Li

AU - Osman, Nael Fakhry

PY - 2006/12

Y1 - 2006/12

N2 - Fast imaging using the STimulated Echo Acquisition Mode (STEAM) sequence can produce cine images of the heart with black-blood contrast. Nevertheless, correction of deformation-related artifacts is required in order to maintain myocardial signal throughout the cardiac cycle. Recent work by our group has eliminated this artifact by combining two STEAM sequences acquired with two different demodulation gradients. Unfortunately, these two STEAM sequences were acquired on two separate breath-holds; thus, scan time doubled. In this work, we present a technique to reduce the total scan time by one half, without sacrificing image quality. The technique is based on interleaving two demodulations within one acquisition in order to obtain quality cine images of the heart in a single breath-hold. The technique was tested on animal models and human subjects, and the impact of interleaved acquisition on image quality was studied using quantitative and qualitative measures.

AB - Fast imaging using the STimulated Echo Acquisition Mode (STEAM) sequence can produce cine images of the heart with black-blood contrast. Nevertheless, correction of deformation-related artifacts is required in order to maintain myocardial signal throughout the cardiac cycle. Recent work by our group has eliminated this artifact by combining two STEAM sequences acquired with two different demodulation gradients. Unfortunately, these two STEAM sequences were acquired on two separate breath-holds; thus, scan time doubled. In this work, we present a technique to reduce the total scan time by one half, without sacrificing image quality. The technique is based on interleaving two demodulations within one acquisition in order to obtain quality cine images of the heart in a single breath-hold. The technique was tested on animal models and human subjects, and the impact of interleaved acquisition on image quality was studied using quantitative and qualitative measures.

KW - Black blood

KW - STEAM

KW - Stimulated echo

UR - http://www.scopus.com/inward/record.url?scp=34547818516&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34547818516&partnerID=8YFLogxK

U2 - 10.1016/j.mri.2006.08.008

DO - 10.1016/j.mri.2006.08.008

M3 - Article

VL - 24

SP - 1303

EP - 1310

JO - Magnetic Resonance Imaging

JF - Magnetic Resonance Imaging

SN - 0730-725X

IS - 10

ER -