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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Magnetic Resonance i...arrow_drop_down
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
Magnetic Resonance in Medicine
Article . 2021 . Peer-reviewed
License: Wiley Online Library User Agreement
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Ultrashort echo time Cones double echo steady state (UTE‐Cones‐DESS) for rapid morphological imaging of short T2 tissues

Authors: Hyungseok Jang; Yajun Ma; Michael Carl; Saeed Jerban; Eric Y. Chang; Jiang Du;

Ultrashort echo time Cones double echo steady state (UTE‐Cones‐DESS) for rapid morphological imaging of short T2 tissues

Abstract

PurposeIn this study, we aimed to develop a new technique, ultrashort echo time Cones double echo steady state (UTE‐Cones‐DESS), for highly efficient morphological imaging of musculoskeletal tissues with short T2s. We also proposed a novel, single‐point Dixon (spDixon)‐based approach for fat suppression.MethodsThe UTE‐Cones‐DESS sequence was implemented on a 3T MR system. It uses a short radiofrequency (RF) pulse followed by a pair of balanced spiral‐out and spiral‐in readout gradients separated by an unbalanced spoiling gradient in‐between. The readout gradients are applied immediately before or after the RF pulses to achieve a UTE image (S+) and a spin/stimulated echo image (S−). Weighted echo subtraction between S+ and S− was performed to achieve high contrast specific to short T2 tissues, and spDixon was applied to suppress fat by using the intrinsic complex signal of S+ and S−. Six healthy volunteers and five patients with osteoarthritis were recruited for whole‐knee imaging. Additionally, two healthy volunteers were recruited for lower leg imaging.ResultsThe UTE‐Cones‐DESS sequence allows fast volumetric imaging of musculoskeletal tissues with excellent image contrast for the osteochondral junction, tendons, menisci, and ligaments in the knee joint as well as cortical bone and aponeurosis in the lower leg within 5 min. spDixon yields efficient fat suppression in both S+ and S− images without requiring any additional acquisitions or preparation pulses.ConclusionThe rapid UTE‐Cones‐DESS sequence can be used for high contrast morphological imaging of short T2 tissues, providing a new tool to assess their association with musculoskeletal disorders.

Keywords

Tendons, Imaging, Three-Dimensional, Knee Joint, Humans, Knee, Magnetic Resonance Imaging

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
17
Top 10%
Average
Top 10%
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