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Knee imaging: Rapid three‐dimensional fast spin‐echo using compressed sensing

Knee imaging: Rapid three‐dimensional fast spin‐echo using compressed sensing Current musculoskeletal magnetic resonance imaging (MRI) protocols typically consist of two‐dimensional fast spin‐echo (2D‐FSE) sequences acquired in multiple planes. Three‐dimensional fast spin‐echo (3D‐FSE) sequences are now commercially available on most MRI vendor platforms. 3D‐FSE sequences can acquire thin continuous slices through joints which can be reformatted in any orientation, thereby eliminating the need to repeat sequences with identical tissue contrast in multiple planes. The use of 3D‐FSE sequences in clinical practice could significantly decrease MRI examination times, which would improve patient comfort and increase the clinical efficiency of the MRI scanner.Multiple studies have shown that 3D‐FSE sequences provide similar diagnostic performance as 2D‐FSE sequences for evaluating the knee joint. However, 3D‐FSE sequences are currently limited by their long scan times needed to achieve high isotropic resolution. 3D‐FSE sequences typically use parallel imaging to reduce scan time at the expense of decreased signal‐to‐noise ratio (SNR). Scan time reduction has also been achieved by using low isotropic resolutions and long echo train lengths, which result in image blurring, or by using anisotropic voxel sizes, which reduce the quality of multiplanar reformat images.Compressed sensing (CS) is an alternative method that could reduce the scan time of 3D‐FSE sequences by acquiring less image http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Magnetic Resonance Imaging Wiley

Knee imaging: Rapid three‐dimensional fast spin‐echo using compressed sensing

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References (32)

Publisher
Wiley
Copyright
© 2017 International Society for Magnetic Resonance in Medicine
ISSN
1053-1807
eISSN
1522-2586
DOI
10.1002/jmri.25507
pmid
27726244
Publisher site
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Abstract

Current musculoskeletal magnetic resonance imaging (MRI) protocols typically consist of two‐dimensional fast spin‐echo (2D‐FSE) sequences acquired in multiple planes. Three‐dimensional fast spin‐echo (3D‐FSE) sequences are now commercially available on most MRI vendor platforms. 3D‐FSE sequences can acquire thin continuous slices through joints which can be reformatted in any orientation, thereby eliminating the need to repeat sequences with identical tissue contrast in multiple planes. The use of 3D‐FSE sequences in clinical practice could significantly decrease MRI examination times, which would improve patient comfort and increase the clinical efficiency of the MRI scanner.Multiple studies have shown that 3D‐FSE sequences provide similar diagnostic performance as 2D‐FSE sequences for evaluating the knee joint. However, 3D‐FSE sequences are currently limited by their long scan times needed to achieve high isotropic resolution. 3D‐FSE sequences typically use parallel imaging to reduce scan time at the expense of decreased signal‐to‐noise ratio (SNR). Scan time reduction has also been achieved by using low isotropic resolutions and long echo train lengths, which result in image blurring, or by using anisotropic voxel sizes, which reduce the quality of multiplanar reformat images.Compressed sensing (CS) is an alternative method that could reduce the scan time of 3D‐FSE sequences by acquiring less image

Journal

Journal of Magnetic Resonance Imaging – Wiley

Published: Jun 1, 2017

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