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   Articles with "pulse sequence" as a keyword



Quadrupolar jump‐and‐return pulse sequence for fluid‐suppressed sodium MRI of the knee joint at 7T

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recommendations! Published in 2018 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.27047

Abstract: To demonstrate the feasibility of the so‐called quadrupolar jump‐and‐return (QJR) pulse sequence by assessing its performance on the contrast modification to knee cartilage and quality of fluid suppression in the knee joint in vivo at… read more here.

Keywords: jump return; knee joint; quadrupolar jump; pulse sequence ... See more keywords

Accelerated, first‐pass cardiac perfusion pulse sequence with radial k‐space sampling, compressed sensing, and k‐space weighted image contrast reconstruction tailored for visual analysis and quantification of myocardial blood flow

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recommendations! Published in 2019 at "Magnetic Resonance in Medicine"

DOI: 10.1002/mrm.27573

Abstract: To develop an accelerated cardiac perfusion pulse sequence and test whether it is capable of increasing spatial coverage, generating high‐quality images, and enabling quantification of myocardial blood flow (MBF). read more here.

Keywords: space; pulse sequence; perfusion pulse; myocardial blood ... See more keywords

Optimized MR pulse sequence for high‐resolution brain 3D‐T1ρ mapping with weighted spin‐lock acquisitions

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recommendations! Published in 2024 at "Magnetic Resonance in Medicine"

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

Vanillin isotopic intramolecular 13C profile through polarization transfer NMR pulse sequence and statistical modelling

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recommendations! Published in 2021 at "Food Control"

DOI: 10.1016/j.foodcont.2021.108345

Abstract: Abstract Vanilla is the most popular aroma among consumers and the authentication of its main compound – vanillin – remains a current challenge in transformed products, whose low vanillin concentration is a limitation to SNIF-NMR… read more here.

Keywords: vanillin; pulse sequence; polarization transfer; nmr pulse ... See more keywords

Comparison of potassium and sodium binding in vivo and in agarose samples using TQTPPI pulse sequence.

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recommendations! Published in 2017 at "Journal of magnetic resonance"

DOI: 10.1016/j.jmr.2017.03.003

Abstract: Potassium and sodium specific binding in vivo were explored at 21.1T by triple quantum (TQ) magnetic resonance (MR) signals without filtration to achieve high sensitivities and precise quantifications. The pulse sequence used time proportional phase… read more here.

Keywords: potassium; pulse sequence; sodium; binding vivo ... See more keywords

Proton detection of carbon-carbon couplings in symmetrical molecules: Analytical explanation, SYMONA pulse sequence.

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recommendations! Published in 2019 at "Journal of magnetic resonance"

DOI: 10.1016/j.jmr.2018.12.002

Abstract: The approach to the measurement of one-bond indirect spin-spin coupling constants between equivalent nuclei was revisited. The analytical formulas for development of the density matrix of strongly coupled symmetrical HC-C'H' spin systems were derived and… read more here.

Keywords: detection; symmetrical molecules; carbon; pulse sequence ... See more keywords

PSACNN: Pulse sequence adaptive fast whole brain segmentation

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recommendations! Published in 2019 at "NeuroImage"

DOI: 10.1016/j.neuroimage.2019.05.033

Abstract: With the advent of convolutional neural networks (CNN), supervised learning methods are increasingly being used for whole brain segmentation. However, a large, manually annotated training dataset of labeled brain images required to train such supervised… read more here.

Keywords: acquisition; segmentation; pulse sequence; whole brain ... See more keywords

Pulse sequence design for high field NMR with NV centers in dipolarly coupled samples

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recommendations! Published in 2024 at "Scientific Reports"

DOI: 10.1038/s41598-025-15899-5

Abstract: Diamond-based quantum sensors have enabled high-resolution NMR spectroscopy at the microscale in scenarios where fast molecular motion averages out dipolar interactions among target nuclei. However, in samples with low-diffusion, ubiquitous dipolar couplings challenge the extraction… read more here.

Keywords: coupled samples; dipolarly coupled; sequence design; high field ... See more keywords

Improving cutoff frequency estimation via optimized π-pulse sequence

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recommendations! Published in 2024 at "Chinese Physics B"

DOI: 10.1088/1674-1056/ad9ba1

Abstract: The cutoff frequency is one of the crucial parameters that characterize the environment. In this paper, we estimate the cutoff frequency of the Ohmic spectral density by applying the π-pulse sequences (both equidistant and optimized)… read more here.

Keywords: pulse sequence; cutoff; cutoff frequency; frequency estimation ... See more keywords

Pulse Sequence Sensing and Pulse Position Modulation for Optical Integrated Sensing and Communication

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recommendations! Published in 2023 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2023.3270184

Abstract: The future wireless network is expected to provide communication and sensing abilities simultaneously, and the optical spectrum brings a promising candidate for integrated sensing and communication. In this letter, an integrated sensing and communication scheme… read more here.

Keywords: pulse sequence; communication; sensing communication; integrated sensing ... See more keywords