Results 41 to 50 of about 23,419 (256)
Motion-corrected 4D-Flow MRI for neurovascular applications
NeuroImage, 2022 Neurovascular 4D-Flow MRI has emerged as a powerful tool for comprehensive cerebrovascular hemodynamic characterization. Clinical studies in at risk populations such as aging adults indicate hemodynamic markers can be confounded by motion-induced bias.
Leonardo A. Rivera-Rivera +6 more
openaire +3 more sources
An LDV based method to quantify the error of PC-MRI derived Wall Shear Stress measurement
Scientific Reports, 2021 Wall Shear Stress (WSS) has been demonstrated to be a biomarker of the development of atherosclerosis. In vivo assessment of WSS is still challenging, but 4D Flow MRI represents a promising tool to provide 3D velocity data from which WSS can be ...
Marco Castagna +8 more
doaj +1 more source
Quantification of Hemodynamic Parameters Using Four-Dimensional Flow MRI
대한영상의학회지, 2019 MRI provides non-invasive and non-ionizing methods for the accurate anatomic depiction of the cardiovascular system. Based on the inherent flow sensitivity, MRI can be used to investigate hemodynamic features in patients with anatomical data within a ...
Hojin Ha +3 more
doaj +1 more source
Journal of Veterinary Internal Medicine, 2021 Background Cerebrospinal fluid (CSF) flow in disease has been investigated with two‐dimensional (2D) phase‐contrast magnetic resonance imaging (PC‐MRI) in humans.
Muriel A. Christen +4 more
doaj +1 more source
Frontiers in Neuroscience, 2021 Objective: A clinically feasible, non-invasive method to quantify blood flow, hemodynamics, and collateral flow in the vertebrobasilar arterial tree is missing.
Jan Malm +7 more
doaj +1 more source
4D flow MRI velocity uncertainty quantification. [PDF]
Magn Reson MedAbstractPurposeAn automatic method is presented for estimating 4D flow MRI velocity measurement uncertainty in each voxel. The velocity distance (VD) metric, a statistical distance between the measured velocity and local error distribution, is introduced as a novel measure of 4D flow MRI velocity measurement quality.MethodsThe method uses mass ...
Rothenberger SM +5 more
europepmc +3 more sources
Congenital heart disease assessment with 4D flow MRI [PDF]
Journal of Magnetic Resonance Imaging, 2015 With improvements in surgical and medical management, patients with congenital heart disease (CHD) are often living well into adulthood. MRI provides critical data for diagnosis and monitoring of these patients, yielding information on cardiac anatomy, blood flow, and cardiac function. Though historically these exams have been complex and lengthy, four‐
Vasanawala, Shreyas S +3 more
openaire +4 more sources
A Systematic Review of 4D-Flow MRI Derived Mitral Regurgitation Quantification Methods
Frontiers in Cardiovascular Medicine, 2019 Background: Four-dimensional flow cardiac magnetic resonance (4D flow CMR) is an emerging non-invasive imaging technology that can be used to quantify mitral regurgitation (MR) volume.
Benjamin Fidock +16 more
doaj +1 more source
Molecular Oncology, EarlyView.Intratumour heterogeneity complicates precision management of advanced endometrial cancer. Circulating tumor DNA (ctDNA) offers a minimally invasive strategy to capture tumor evolution and therapeutic resistance. Here, we compare tumor‐agnostic NGS with tumor‐informed ddPCR, outlining their relative sensitivity, concordance, and clinical implications ...
Carlos Casas‐Arozamena +15 more
wiley +1 more source
Molecular Oncology, EarlyView.Radiotherapy (RT) response depends on the DNA repair capacity of tumor and host cells. We show that circulating tumor cell (CTC) counts and apoptosis rates before and after RT predict treatment response and outcome, which can be accessed via easily accessible liquid biopsy approaches. Created in BioRender. Wikman, H.
Yvonne Goy +10 more
wiley +1 more source