Time-Resolved 3D Contrast-Enhanced MRA of an Extended FOV Using Continuous Table Motion

Ananth J. Madhuranthakam; David G. Kruger; Stephen J. Riederer; James F. Glockner; Houchun H. Hu

doi:10.1002/mrm.10729

Time-Resolved 3D Contrast-Enhanced MRA of an Extended FOV Using Continuous Table Motion

Ananth J. Madhuranthakam, David G. Kruger, Stephen J. Riederer, James F. Glockner, Houchun H. Hu

Radiology

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

32 Scopus citations

Abstract

A method is presented for acquiring 3D time-resolved MR images of an extended (>100 cm) longitudinal field of view (FOV), as used for peripheral MR angiographic runoff studies. Previous techniques for long-FOV peripheral MRA have generally provided a single image (i.e., with no time resolution). The technique presented here generates a time series of 3D images of the FOV that lies within the homogeneous volume of the magnet. This is achieved by differential sampling of 3D k-space during continuous motion of the patient table. Each point in the object is interrogated in five consecutive 3D image sets generated at 2.5-s intervals. The method was tested experimentally in eight human subjects, and the leading edge of the bolus was observed in real time and maintained within the imaging FOV. The data revealed differential bolus velocities along the vasculature of the legs.

Original language	English (US)
Pages (from-to)	568-576
Number of pages	9
Journal	Magnetic Resonance in Medicine
Volume	51
Issue number	3
DOIs	https://doi.org/10.1002/mrm.10729
State	Published - Mar 2004

Keywords

Contrast kinetics
Extended-FOV MRI
Moving-table MRI
Peripheral MRA
Time-resolved 3D MRA

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging

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10.1002/mrm.10729

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title = "Time-Resolved 3D Contrast-Enhanced MRA of an Extended FOV Using Continuous Table Motion",

abstract = "A method is presented for acquiring 3D time-resolved MR images of an extended (>100 cm) longitudinal field of view (FOV), as used for peripheral MR angiographic runoff studies. Previous techniques for long-FOV peripheral MRA have generally provided a single image (i.e., with no time resolution). The technique presented here generates a time series of 3D images of the FOV that lies within the homogeneous volume of the magnet. This is achieved by differential sampling of 3D k-space during continuous motion of the patient table. Each point in the object is interrogated in five consecutive 3D image sets generated at 2.5-s intervals. The method was tested experimentally in eight human subjects, and the leading edge of the bolus was observed in real time and maintained within the imaging FOV. The data revealed differential bolus velocities along the vasculature of the legs.",

keywords = "Contrast kinetics, Extended-FOV MRI, Moving-table MRI, Peripheral MRA, Time-resolved 3D MRA",

author = "Madhuranthakam, {Ananth J.} and Kruger, {David G.} and Riederer, {Stephen J.} and Glockner, {James F.} and Hu, {Houchun H.}",

year = "2004",

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language = "English (US)",

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AU - Madhuranthakam, Ananth J.

AU - Kruger, David G.

AU - Riederer, Stephen J.

AU - Glockner, James F.

AU - Hu, Houchun H.

PY - 2004/3

Y1 - 2004/3

N2 - A method is presented for acquiring 3D time-resolved MR images of an extended (>100 cm) longitudinal field of view (FOV), as used for peripheral MR angiographic runoff studies. Previous techniques for long-FOV peripheral MRA have generally provided a single image (i.e., with no time resolution). The technique presented here generates a time series of 3D images of the FOV that lies within the homogeneous volume of the magnet. This is achieved by differential sampling of 3D k-space during continuous motion of the patient table. Each point in the object is interrogated in five consecutive 3D image sets generated at 2.5-s intervals. The method was tested experimentally in eight human subjects, and the leading edge of the bolus was observed in real time and maintained within the imaging FOV. The data revealed differential bolus velocities along the vasculature of the legs.

AB - A method is presented for acquiring 3D time-resolved MR images of an extended (>100 cm) longitudinal field of view (FOV), as used for peripheral MR angiographic runoff studies. Previous techniques for long-FOV peripheral MRA have generally provided a single image (i.e., with no time resolution). The technique presented here generates a time series of 3D images of the FOV that lies within the homogeneous volume of the magnet. This is achieved by differential sampling of 3D k-space during continuous motion of the patient table. Each point in the object is interrogated in five consecutive 3D image sets generated at 2.5-s intervals. The method was tested experimentally in eight human subjects, and the leading edge of the bolus was observed in real time and maintained within the imaging FOV. The data revealed differential bolus velocities along the vasculature of the legs.

KW - Contrast kinetics

KW - Extended-FOV MRI

KW - Moving-table MRI

KW - Peripheral MRA

KW - Time-resolved 3D MRA

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Time-Resolved 3D Contrast-Enhanced MRA of an Extended FOV Using Continuous Table Motion

Abstract

Keywords

ASJC Scopus subject areas

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