Detecting Early‐Stage Liver Fibrosis Using Macromolecular Proton Fraction Mapping Based on Spin‐Lock MRI: Preliminary Observations
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Magnetic Resonance Imaging"
DOI: 10.1002/jmri.28308
Abstract: Liver fibrosis is characterized by macromolecule depositions. Recently, a novel technology termed macromolecular proton fraction quantification based on spin‐lock magnetic resonance imaging (MPF‐SL) is reported to measure macromolecule levels. read more here.
Keywords: liver fibrosis; based spin; macromolecular proton; spin lock ... See more keywords
Fast cardiac T1ρ,adiab mapping using slice‐selective adiabatic spin‐lock preparation pulses
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DOI: 10.1002/mrm.30238
Abstract: Myocardial T1ρ mapping techniques commonly acquire multiple images in one breathhold to calculate a single‐slice T1ρ map. Recently, non‐selective adiabatic pulses have been used for robust spin‐lock preparation (T1ρ,adiab). The objective of this study was… read more here.
Keywords: lock preparation; selective adiabatic; spin lock; adiab mapping ... See more keywords
Optimized MR pulse sequence for high‐resolution brain 3D‐T1ρ mapping with weighted spin‐lock acquisitions
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DOI: 10.1002/mrm.30412
Abstract: To implement and evaluate the feasibility of brain spin–lattice relaxation in the rotating frame (T1ρ) mapping using a novel optimized pulse sequence that incorporates weighted spin‐lock acquisitions, enabling high‐resolution three‐dimensional (3D) mapping. read more here.
Keywords: optimized pulse; lock acquisitions; spin lock; weighted spin ... See more keywords
Quantitative macromolecular proton fraction imaging using pulsed spin‐lock
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DOI: 10.1002/mrm.70021
Abstract: Recent studies have shown that spin‐lock MRI can simplify quantitative magnetization transfer (MT) by eliminating its dependency on water pool parameters, removing the need for a T1 map in macromolecular proton fraction (MPF) quantification. However,… read more here.
Keywords: macromolecular proton; proton fraction; spin lock;
On‐resonance and off‐resonance continuous wave constant amplitude spin‐lock and T1ρ quantification in the presence of B1 and B0 inhomogeneities
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DOI: 10.1002/nbm.3928
Abstract: Spin‐lock MRI is a valuable diagnostic imaging technology, as it can be used to probe the macromolecule environment of tissues. Quantitative T1ρ imaging is one application of spin‐lock MRI that is reported to be promising… read more here.
Keywords: lock; continuous wave; spin lock; amplitude ... See more keywords
A robust adiabatic constant amplitude spin‐lock preparation module for myocardial T1ρ quantification at 3 T
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DOI: 10.1002/nbm.4830
Abstract: T1ρ quantification has the potential to assess myocardial fibrosis without contrast agent. However, its preparation spin‐lock pulse is sensitive to B1 and B0 inhomogeneities, resulting in severe banding artifacts in the heart region, especially at… read more here.
Keywords: spin lock; tan tanh; quantification; preparation ... See more keywords
Novel spin‐lock time sampling strategies for improved reproducibility in quantitative T1ρ mapping
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DOI: 10.1002/nbm.5244
Abstract: This study aimed to optimize the sampling of spin‐lock times (TSLs) in quantitative T1ρ mapping for improved reproducibility. Two new TSL sampling schemes were proposed: (i) reproducibility‐guided random sampling (RRS) and (ii) reproducibility‐guided optimal sampling… read more here.
Keywords: improved reproducibility; reproducibility; spin lock; quantitative mapping ... See more keywords