Fast, Three-Dimensional Free-Breathing MR Imaging of Myocardial Infarction: A Feasibility Study

Manojkumar Saranathan; Carlos E. Rochitte; Thomas K.F. Foo

doi:10.1002/mrm.20061

Fast, Three-Dimensional Free-Breathing MR Imaging of Myocardial Infarction: A Feasibility Study

Manojkumar Saranathan, Carlos E. Rochitte, Thomas K.F. Foo

Research output: Contribution to journal › Article › peer-review

48 Scopus citations

Abstract

Imaging delayed hyperenhancement of myocardial infarction is most commonly performed using an inversion recovery (IR) prepared 2D breathhold segmented k-space gradient echo (FGRE) sequence. Since only one slice is acquired per breathhold in this technique, 12-16 successive breathholds are required for complete anatomical coverage of the heart. This prolongs the overall scan time and may be exhausting for patients. A navigator-echo gated, free-breathing, 3D FGRE sequence is proposed that can be used to acquire a single slab covering the entire heart with high spatial resolution. The use of a new variable sampling in time (VAST) acquisition scheme enables the entire 3D volume to be acquired in 1.5-2 min, minimizing artifacts from bulk motion and diaphragmatic drift and contrast variations due to contrast media washout.

Original language	English (US)
Pages (from-to)	1055-1060
Number of pages	6
Journal	Magnetic Resonance in Medicine
Volume	51
Issue number	5
DOIs	https://doi.org/10.1002/mrm.20061
State	Published - May 2004
Externally published	Yes

Keywords

Cardiac MRI
Delayed hyperenhancement
Inversion recovery
Myocardial infarction
Navigator gating

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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10.1002/mrm.20061

Cite this

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title = "Fast, Three-Dimensional Free-Breathing MR Imaging of Myocardial Infarction: A Feasibility Study",

abstract = "Imaging delayed hyperenhancement of myocardial infarction is most commonly performed using an inversion recovery (IR) prepared 2D breathhold segmented k-space gradient echo (FGRE) sequence. Since only one slice is acquired per breathhold in this technique, 12-16 successive breathholds are required for complete anatomical coverage of the heart. This prolongs the overall scan time and may be exhausting for patients. A navigator-echo gated, free-breathing, 3D FGRE sequence is proposed that can be used to acquire a single slab covering the entire heart with high spatial resolution. The use of a new variable sampling in time (VAST) acquisition scheme enables the entire 3D volume to be acquired in 1.5-2 min, minimizing artifacts from bulk motion and diaphragmatic drift and contrast variations due to contrast media washout.",

keywords = "Cardiac MRI, Delayed hyperenhancement, Inversion recovery, Myocardial infarction, Navigator gating",

author = "Manojkumar Saranathan and Rochitte, {Carlos E.} and Foo, {Thomas K.F.}",

year = "2004",

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T2 - A Feasibility Study

AU - Saranathan, Manojkumar

AU - Rochitte, Carlos E.

AU - Foo, Thomas K.F.

PY - 2004/5

Y1 - 2004/5

N2 - Imaging delayed hyperenhancement of myocardial infarction is most commonly performed using an inversion recovery (IR) prepared 2D breathhold segmented k-space gradient echo (FGRE) sequence. Since only one slice is acquired per breathhold in this technique, 12-16 successive breathholds are required for complete anatomical coverage of the heart. This prolongs the overall scan time and may be exhausting for patients. A navigator-echo gated, free-breathing, 3D FGRE sequence is proposed that can be used to acquire a single slab covering the entire heart with high spatial resolution. The use of a new variable sampling in time (VAST) acquisition scheme enables the entire 3D volume to be acquired in 1.5-2 min, minimizing artifacts from bulk motion and diaphragmatic drift and contrast variations due to contrast media washout.

AB - Imaging delayed hyperenhancement of myocardial infarction is most commonly performed using an inversion recovery (IR) prepared 2D breathhold segmented k-space gradient echo (FGRE) sequence. Since only one slice is acquired per breathhold in this technique, 12-16 successive breathholds are required for complete anatomical coverage of the heart. This prolongs the overall scan time and may be exhausting for patients. A navigator-echo gated, free-breathing, 3D FGRE sequence is proposed that can be used to acquire a single slab covering the entire heart with high spatial resolution. The use of a new variable sampling in time (VAST) acquisition scheme enables the entire 3D volume to be acquired in 1.5-2 min, minimizing artifacts from bulk motion and diaphragmatic drift and contrast variations due to contrast media washout.

KW - Cardiac MRI

KW - Delayed hyperenhancement

KW - Inversion recovery

KW - Myocardial infarction

KW - Navigator gating

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Fast, Three-Dimensional Free-Breathing MR Imaging of Myocardial Infarction: A Feasibility Study

Abstract

Keywords

ASJC Scopus subject areas

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