Results 141 to 150 of about 44,347 (256)

Fully‐Constrained Variable Projection for Water‐Fat Models

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Variable projection (VARPRO) is an effective technique to reduce the dimensionality of least squares optimization problems through the elimination of linear parameters. For water‐fat models, constrained VARPRO variants have been proposed in the literature to ensure that water and fat components are aligned at TE = 0, thereby preventing
Carl Ganter   +4 more
wiley   +1 more source

A pilot study on spoilage dynamics in industrially produced <i>Paneer Shahri</i>, a traditional Iranian fresh cheese. [PDF]

open access: yesFront Microbiol
Moradi Mirhesari D   +5 more
europepmc   +1 more source

Single‐Shot 2D Radial Echo Planar Imaging for Functional MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a novel single‐shot radial echo planar imaging (ss‐rEPI) technique for rapid, distortion‐free brain imaging in functional MRI experiments. Methods Radial multi‐gradient echo (radial mGRE) data were acquired on a 3T clinical scanner using a 2D ss‐rEPI readout with small golden‐angle rotations between echoes.
Christoph A. Rettenmeier   +4 more
wiley   +1 more source

Ventilation Imaging of the Lung at 0.55T With Continuous Slice Cycling

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To propose and evaluate a novel method for pulmonary ventilation imaging, offering considerably improved SNR. Methods A continuous slice cycling (CSC) acquisition scheme is proposed to exclusively capture signal modulations from respiratory motion with increased SNR.
Andrea Leuthard   +4 more
wiley   +1 more source

Quantifying Cardiac, Respiratory, and Low Frequency Components of CSF Motion From fMRI Inflow Effects

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Cerebrospinal fluid (CSF) flow oscillations have emerged as a potentially important marker related to brain clearance, but their acquisition often relies on specialized imaging MRI sequences. The purpose of this work was to enable quantitative assessment of CSF flow associated with cardiac, respiratory, and low‐frequency cycles using ...
Pontus Söderström   +5 more
wiley   +1 more source

T1‐weighting in Steady‐State FLASH MRI–Diffusion Is Not Only Supportive but Mandatory for the Contrast

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose FLASH imaging is widely assumed to produce a T1‐weighted steady‐state contrast using RF‐ and gradient‐spoiling. We observed substantial overestimation of CSF signals in simulations, when diffusion was neglected and realistic proton density was applied.
Simon Weinmüller   +7 more
wiley   +1 more source

Atlas of Brain Glucose Metabolism Using Deuterium Metabolic Imaging at 3 T

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Deuterium metabolic imaging (DMI) offers noninvasive magnetic resonance imaging (MRI)–based assessment of metabolism in vivo, making it a relevant paraclinical tool for diseases with neurological metabolic alterations. This study aimed to establish a normative reference atlas of brain glucose metabolism accounting for age and sex ...
Kamilla K. Trosborg   +14 more
wiley   +1 more source

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