A modified quadrupole gradient set for use in high resolution MRI tagging.

W. G. O'Dell; J. S. Schoeniger; S. J. Blackband; E. R. McVeigh

A modified quadrupole gradient set for use in high resolution MRI tagging.

W. G. O'Dell
, J. S. Schoeniger
, S. J. Blackband
, E. R. McVeigh

School of Medicine

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

12 Scopus citations

Abstract

A special purpose gradient set with a Cos(2 theta) current distribution has been constructed for high resolution MR imaging of small samples in a clinical Signa 1.5 T scanner using the existing gradient amplifiers. The X, Y, and Z gradient coils can attain gradient field strengths of 11.3, 4.7, and 15.2 G/cm at 100 amps current, respectively, with a slew rate of 20 G/cm/ms and usable ramp time of 150 microseconds. Field distortions are less than 2% over the central 8 cm of the bore, suitable for high resolution tagging of isolated canine hearts.

Original language	English (US)
Pages (from-to)	246-250
Number of pages	5
Journal	Magnetic Resonance in Medicine
Volume	32
Issue number	2
State	Published - Aug 1994

ASJC Scopus subject areas

Radiology Nuclear Medicine and imaging
Radiological and Ultrasound Technology

Cite this

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AU - O'Dell, W. G.

AU - Schoeniger, J. S.

AU - Blackband, S. J.

AU - McVeigh, E. R.

PY - 1994/8

Y1 - 1994/8

N2 - A special purpose gradient set with a Cos(2 theta) current distribution has been constructed for high resolution MR imaging of small samples in a clinical Signa 1.5 T scanner using the existing gradient amplifiers. The X, Y, and Z gradient coils can attain gradient field strengths of 11.3, 4.7, and 15.2 G/cm at 100 amps current, respectively, with a slew rate of 20 G/cm/ms and usable ramp time of 150 microseconds. Field distortions are less than 2% over the central 8 cm of the bore, suitable for high resolution tagging of isolated canine hearts.

AB - A special purpose gradient set with a Cos(2 theta) current distribution has been constructed for high resolution MR imaging of small samples in a clinical Signa 1.5 T scanner using the existing gradient amplifiers. The X, Y, and Z gradient coils can attain gradient field strengths of 11.3, 4.7, and 15.2 G/cm at 100 amps current, respectively, with a slew rate of 20 G/cm/ms and usable ramp time of 150 microseconds. Field distortions are less than 2% over the central 8 cm of the bore, suitable for high resolution tagging of isolated canine hearts.

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JF - Magnetic Resonance in Medicine

IS - 2

ER -

A modified quadrupole gradient set for use in high resolution MRI tagging.

Abstract

ASJC Scopus subject areas

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