Articles with "proton density" as a keyword



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Improving CPMG liver iron estimates with a T 1 -corrected proton density estimator.

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Published in 2021 at "Magnetic resonance in medicine"

DOI: 10.1002/mrm.28943

Abstract: PURPOSE CPMG spin echo acquisitions are attractive for diagnosing and monitoring liver iron concentration in iron overload disorders due to their time efficiency and potential to reveal unique information about tissue iron distribution. Clinical adoption… read more here.

Keywords: liver iron; iron; cpmg; proton density ... See more keywords
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Proton-density fat fraction measurement: A viable quantitative biomarker for differentiating adrenal adenomas from nonadenomas.

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Published in 2017 at "European journal of radiology"

DOI: 10.1016/j.ejrad.2016.11.001

Abstract: PURPOSE This study aims to compare the accuracy of proton-density fat fraction (PDFF) measurements with chemical shift magnetic resonance imaging (CSI) for quantifying the fat content of adrenal nodules and for differentiating adenomas from nonadenomas.… read more here.

Keywords: fat fraction; density fat; proton density; adenomas nonadenomas ... See more keywords
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Physical Modeling of the Proton Density in Nanopores of PEM Fuel Cell Catalyst Layers

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Published in 2017 at "Electrochimica Acta"

DOI: 10.1016/j.electacta.2017.05.052

Abstract: Abstract In polymer electrolyte fuel cells, a foremost goal is to design catalyst layers with high performance at markedly reduced platinum loading. As a contribution towards this objective, we explore a simplified pore geometry to… read more here.

Keywords: density; catalyst layers; fuel; proton density ... See more keywords
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STrategically Acquired Gradient Echo (STAGE) imaging, part II: Correcting for RF inhomogeneities in estimating T1 and proton density.

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Published in 2018 at "Magnetic resonance imaging"

DOI: 10.1016/j.mri.2017.10.006

Abstract: PURPOSE To develop a method for mapping the B1 transmit (B1t) and B1 receive (B1r) fields from two gradient echo datasets each with a different flip angle and from these two images obtain accurate T1… read more here.

Keywords: echo stage; acquired gradient; gradient echo; strategically acquired ... See more keywords
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Reliability and agreement of proton density-weighted vs. gadolinium-enhanced T1-weighted MRI in hand osteoarthritis. An OMERACT MRI special interest group reliability exercise.

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Published in 2021 at "Seminars in arthritis and rheumatism"

DOI: 10.1016/j.semarthrit.2021.05.007

Abstract: OBJECTIVES To compare reliabilities of assessing synovitis in hand osteoarthritis (OA) using Magnetic Resonance Imaging (MRI) with/without gadolinium (Gd). METHODS Three readers scored synovitis on non-enhanced two-dimensional (2D) proton density (PD)-weighted MRI and Gd-enhanced (3D)… read more here.

Keywords: hand osteoarthritis; proton density; mri; reliability ... See more keywords
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Acceleration of chemical shift encoding-based water fat MRI for liver proton density fat fraction and T2* mapping using compressed sensing

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Published in 2019 at "PLoS ONE"

DOI: 10.1371/journal.pone.0224988

Abstract: Objectives To evaluate proton density fat fraction (PDFF) and T2* measurements of the liver with combined parallel imaging (sensitivity encoding, SENSE) and compressed sensing (CS) accelerated chemical shift encoding-based water-fat separation. Methods Six-echo Dixon imaging… read more here.

Keywords: density fat; fat fraction; acceleration; sense ... See more keywords
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Evaluation of condylar osseous changes using a wireless detector with proton density–weighted imaging sequences

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Published in 2022 at "Quantitative Imaging in Medicine and Surgery"

DOI: 10.21037/qims-22-424

Abstract: Background Cone-beam computed tomography (CBCT) is the gold standard for evaluating condylar osseous changes. However, the radiation risk and low soft-tissue resolution of CBCT make it unsuitable for evaluating soft tissue such as the articular… read more here.

Keywords: osseous changes; condylar osseous; proton density; hncc ... See more keywords
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Added Predictive Values of Proton Density Magnetic Resonance Imaging on Posterior Communicating Artery Aneurysms and Surrounding Soft Tissues with Simple Classification.

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Published in 2023 at "Journal of Korean Neurosurgical Society"

DOI: 10.3340/jkns.2022.0259

Abstract: Objective Deciphering the anatomy of posterior communicating artery (PCoA) aneurysms in relation to surrounding structures is essential to determine adjuvant surgical procedures. However, it is difficult to predict surgical structures through preoperative imaging studies. We… read more here.

Keywords: magnetic resonance; posterior communicating; pcoa; communicating artery ... See more keywords