Results 91 to 100 of about 43,651 (248)

Enhanced 2D Spiral Cine DENSE MRI Using Low‐Rank Denoising for Improved Apparent Signal‐to‐Noise Ratio, Spatial Resolution, Efficiency, Accuracy, and Accessibility

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop a denoising technique for displacement encoding with stimulated echoes (DENSE) MRI that improves spatial resolution, efficiency, and accuracy, and enhances accessibility by implementing DENSE MRI at 0.55 T. Methods We developed a low‐rank denoising technique, which leverages multidimensional spiral cine DENSE MRI data for ...
Shu‐Fu Shih, Yuxiao Wu, Siyue Li, Zhengyang Ming, Arutyun Pogosyan, Fei Han, Holden H. Wu, J. Paul Finn, Kim‐Lien Nguyen, Xiaodong Zhong   +9 more
wiley   +1 more source

Measurement of fasted state gastric antral motility before and after a standard bioavailability and bioequivalence 240 mL drink of water: Validation of MRI method against concomitant perfused manometry in healthy participants.

PLoS ONE, 2020
ObjectiveThe gastrointestinal environment in which drug products need to disintegrate before the drug can dissolve and be absorbed has not been studied in detail due to limitations, especially invasiveness of existing techniques.
Khaled Heissam, Nichola Abrehart, Caroline L Hoad, Jeff Wright, Alex Menys, Kathryn Murray, Paul M Glover, Geoffrey Hebbard, Penny A Gowland, Jason Baker, William L Hasler, Robin C Spiller, Maura Corsetti, James G Brasseur, Bart Hens, Kerby Shedden, Joseph Dickens, Deanna M Mudie, Greg E Amidon, Gordon L Amidon, Luca Marciani   +20 more
doaj   +1 more source

Feature Tracking Cardiac Magnetic Resonance via Deep Learning and Spline Optimization

, 2017
Feature tracking Cardiac Magnetic Resonance (CMR) has recently emerged as an area of interest for quantification of regional cardiac function from balanced, steady state free precession (SSFP) cine sequences.
Bluemke, David A., Noble, J. Alison, Vigneault, Davis M., Xie, Weidi   +3 more
core   +1 more source

Optimized Detection of Left Ventricular Hyperpolarized [1‐13C]Pyruvate Signal in Human Cardiac Metabolic Imaging

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aimed to improve the analysis of the left ventricular (LV) blood pool hyperpolarized [1‐13C]pyruvate signal for a more reliable quantification of downstream metabolic outcome. Methods Hyperpolarized [1‐13C]pyruvate magnetic resonance spectroscopic images were acquired dynamically at 3 Tesla in 106 participants (NCT03685175).
Fatemeh Khashami, Ivan E. Dimitrov, Maximilian Fuetterer, Stefan Glöggler, Bei Zhang, Egzona Tan, Sebastian Kozerke, Anke Henning, Tarique Hussain, Craig R. Malloy, Nisha Unni, Vlad G. Zaha, CTOX Trial Investigator(s), Sheeba Cantanelli, Isaac Chan, Suzanne Cole, Suzanne Conzen, Glenda Delgado, Deborah Farr, Joshua Gruber, Barbara Haley, Dawn Klemow, Jenny Li, Heather McArthur, Alka Mallik, Poorni Manohar, Ina Patel, Namrata Peswani, Sangeetha Reddy, Navid Sadeghi, Samira Syed   +30 more
wiley   +1 more source

Evaluation of compressed sensing MRI for accelerated bowel motility imaging

European Radiology Experimental, 2019
Background To investigate the feasibility of compressed sensing and parallel imaging (CS-PI)-accelerated bowel motility magnetic resonance imaging (MRI) and to compare its image quality and diagnostic quality to conventional sensitivity encoding (SENSE ...
C. S. de Jonge, B. F. Coolen, E. S. Peper, A. G. Motaal, C. Y. Nio, I. Somers, G. J. Strijkers, J. Stoker, A. J. Nederveen   +8 more
doaj   +1 more source

Focal Spot, Fall/Winter 1990 [PDF]

, 1990
https://digitalcommons.wustl.edu/focal_spot_archives/1056/thumbnail ...

core   +1 more source

Deep‐Learning‐Based Image Reconstruction to Improve End‐Diastolic and Systolic Cardiac T1 Mapping

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop an image reconstruction method that enables increased spatial resolution cardiac T1 mapping in both the end‐diastolic and systolic phase, that shows high T1 agreement with the clinical standard. The resolution gain is achieved by increasing the acceleration rate of MOLLI single‐shot images to R = 4, while maintaining a ...
Daniel Amsel, Jens Wetzl, Daniel Giese, Christoph Tillmanns, Rolf Gebker, Kelvin Chow, Michaela Schmidt, Andreas Lingg, Jens Kübler, Patrick Krumm, Thomas Küstner   +10 more
wiley   +1 more source

Diagnostic Performance of Treadmill Exercise Cardiac Magnetic Resonance: The Prospective, Multicenter Exercise CMR's Accuracy for Cardiovascular Stress Testing (EXACT) Trial

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2016
BackgroundStress cardiac magnetic resonance (CMR) has typically involved pharmacologic agents. Treadmill CMR has shown utility in single‐center studies but has not undergone multicenter evaluation.
Subha V. Raman, Jennifer A. Dickerson, Wojciech Mazur, Timothy C. Wong, Erik B. Schelbert, James K. Min, Debbie Scandling, Cheryl Bartone, Jason T. Craft, Paaladinesh Thavendiranathan, Ernest L. Mazzaferri, John W. Arnold, Robert Gilkeson, Orlando P. Simonetti   +13 more
doaj   +1 more source

Pharmacological inhibition of hydroxysteroid 11‐beta dehydrogenase type 1 (11‐βHSD1) after myocardial infarction preserves cardiac function in a translational mini‐pig model

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Plasma glucocorticoids increase acutely after MI, thereafter tissue levels are amplified selectively within cells expressing 11‐ßhydroxysteroid dehydrogenase type 1 (11‐ßHSD1) that regenerates active glucocorticoids from circulating metabolites.
Sara Al Disi, Raimondo Ascione, Shazia Khan, Thomas Johnson, Eva Sammut, Vito Domenico Bruno, Daniel Baz Lopez, Carol‐Anne James, Joanna Simpson, Natalie Z. Homer, Michael Millar, Trisha Singh, Alex von Kreigsheim, Nick L. Mills, Brian R. Walker, Ruth Andrew, Scott P. Webster, Andrew Whittaker, Adrian Freeman, Gillian A. Gray   +19 more
wiley   +1 more source

Focal Spot, Spring 2000 [PDF]

, 2000
https://digitalcommons.wustl.edu/focal_spot_archives/1084/thumbnail ...

core   +1 more source