High-resolution MR imaging of the wrist and eye with short TR, short TE, and partial-echo acquisition

Thomas K F Foo; Frank G. Shellock; Cecil E. Hayes; John F. Schenck; Beth E. Slayman

High-resolution MR imaging of the wrist and eye with short TR, short TE, and partial-echo acquisition

Thomas K F Foo, Frank G. Shellock, Cecil E. Hayes, John F. Schenck, Beth E. Slayman

Research output: Contribution to journal › Article

Abstract

High-resolution spin-echo and two-and three-dimensional gradient-recalled acquisition in the steady state (GRASS) and spoiled GRASS images of the wrist and eye were obtained with a whole-body magnetic resonance imager by using trapezoidal phase-encoding gradient waveforms and by lowering receiver bandwidth to ± 8 kHz, which results in a minimum field of view (FOV) of 4 cm and pixel resolution of 156 μm for a 256 × 256 matrix. Short echo times were achieved by using partial-echo acquisition. Poor signal-to-noise ratio resulting from smaller voxel sizes was overcome by using prototype receive-only eye and wrist coils. Images were obtained in reduced time and were superior to those obtained in studies performed with an 8-12-cm FOV and commercially available coils.

Original language	English (US)
Pages (from-to)	277-281
Number of pages	5
Journal	Radiology
Volume	183
Issue number	1
State	Published - Apr 1992
Externally published	Yes

Keywords

Eye, MR, 224.1214
Magnetic resonance (MR), high-resolution
Magnetic resonance (MR), technology
Magnetic resonance (MR), three-dimensional
Wrist, MR, 43.1214

ASJC Scopus subject areas

Radiological and Ultrasound Technology

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Foo, T. K. F., Shellock, F. G., Hayes, C. E., Schenck, J. F., & Slayman, B. E. (1992). High-resolution MR imaging of the wrist and eye with short TR, short TE, and partial-echo acquisition. Radiology, 183(1), 277-281.

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abstract = "High-resolution spin-echo and two-and three-dimensional gradient-recalled acquisition in the steady state (GRASS) and spoiled GRASS images of the wrist and eye were obtained with a whole-body magnetic resonance imager by using trapezoidal phase-encoding gradient waveforms and by lowering receiver bandwidth to ± 8 kHz, which results in a minimum field of view (FOV) of 4 cm and pixel resolution of 156 μm for a 256 × 256 matrix. Short echo times were achieved by using partial-echo acquisition. Poor signal-to-noise ratio resulting from smaller voxel sizes was overcome by using prototype receive-only eye and wrist coils. Images were obtained in reduced time and were superior to those obtained in studies performed with an 8-12-cm FOV and commercially available coils.",

keywords = "Eye, MR, 224.1214, Magnetic resonance (MR), high-resolution, Magnetic resonance (MR), technology, Magnetic resonance (MR), three-dimensional, Wrist, MR, 43.1214",

author = "Foo, {Thomas K F} and Shellock, {Frank G.} and Hayes, {Cecil E.} and Schenck, {John F.} and Slayman, {Beth E.}",

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T1 - High-resolution MR imaging of the wrist and eye with short TR, short TE, and partial-echo acquisition

AU - Foo, Thomas K F

AU - Shellock, Frank G.

AU - Hayes, Cecil E.

AU - Schenck, John F.

AU - Slayman, Beth E.

PY - 1992/4

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N2 - High-resolution spin-echo and two-and three-dimensional gradient-recalled acquisition in the steady state (GRASS) and spoiled GRASS images of the wrist and eye were obtained with a whole-body magnetic resonance imager by using trapezoidal phase-encoding gradient waveforms and by lowering receiver bandwidth to ± 8 kHz, which results in a minimum field of view (FOV) of 4 cm and pixel resolution of 156 μm for a 256 × 256 matrix. Short echo times were achieved by using partial-echo acquisition. Poor signal-to-noise ratio resulting from smaller voxel sizes was overcome by using prototype receive-only eye and wrist coils. Images were obtained in reduced time and were superior to those obtained in studies performed with an 8-12-cm FOV and commercially available coils.

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