Andrew Webb

C.J. Gorter Center for High Field MRI, Leiden University

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JoVE Journal Publications

ArticleTotal : 1	Year
Publication title Cited by 3	2021

Other Publications

Article	Year
A method to separate conservative and magnetically-induced electric fields in calculations for MRI and MRS in electrically-small samples. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 19520593	2009
Experimental and numerical assessment of MRI-induced temperature change and SAR distributions in phantoms and in vivo. Magnetic resonance in medicine\| PubMed ID: 19785018	2010
Initial results on in vivo human coronary MR angiography at 7 T. Magnetic resonance in medicine\| PubMed ID: 19859918	2009
Faraday shields within a solenoidal coil to reduce sample heating: numerical comparison of designs and experimental verification. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 19879784	2010
Improved signal to noise in proton spectroscopy of the human calf muscle at 7 T using localized B1 calibration. Magnetic resonance in medicine\| PubMed ID: 19918906	2010
MRI and localized proton spectroscopy in human leg muscle at 7 Tesla using longitudinal traveling waves. Magnetic resonance in medicine\| PubMed ID: 20099323	2010
Imaging the ocular motor nerves. European journal of radiology\| PubMed ID: 20226610	2010
Quantitative assessment of left ventricular function in humans at 7 T. Magnetic resonance in medicine\| PubMed ID: 20593368	2010
Phase-based arterial input function measurements for dynamic susceptibility contrast MRI. Magnetic resonance in medicine\| PubMed ID: 20665779	2010
Right coronary MR angiography at 7 T: a direct quantitative and qualitative comparison with 3 T in young healthy volunteers. Radiology\| PubMed ID: 20851943	2010
High-field MRI of single histological slices using an inductively coupled, self-resonant microcoil: application to ex vivo samples of patients with Alzheimer's disease. NMR in biomedicine\| PubMed ID: 20960578	2011
Lenticulostriate arterial lumina are normal in cerebral autosomal-dominant arteriopathy with subcortical infarcts and leukoencephalopathy: a high-field in vivo MRI study. Stroke\| PubMed ID: 20966419	2010
New criterion to aid manual and automatic selection of the arterial input function in dynamic susceptibility contrast MRI. Magnetic resonance in medicine\| PubMed ID: 21264935	2011
Exploratory 7-Tesla magnetic resonance spectroscopy in Huntington's disease provides in vivo evidence for impaired energy metabolism. Journal of neurology\| PubMed ID: 21614431	2011
In vivo determination of human breast fat composition by ¹H magnetic resonance spectroscopy at 7 T. Magnetic resonance in medicine\| PubMed ID: 21656551	2012
Fractional Order Analysis of Sephadex Gel Structures: NMR Measurements Reflecting Anomalous Diffusion. Communications in nonlinear science & numerical simulation\| PubMed ID: 21804746	2011
Quantitative assessment of the effects of high-permittivity pads in 7 Tesla MRI of the brain. Magnetic resonance in medicine\| PubMed ID: 21826732	2012
Increasing the sensitivity of magnetic resonance spectroscopy and imaging. Analytical chemistry\| PubMed ID: 21978101	2012
Differences in apparent diffusion coefficients of brain metabolites between grey and white matter in the human brain measured at 7 T. Magnetic resonance in medicine\| PubMed ID: 22083562	2012
Evaluation of signal formation in local arterial input function measurements of dynamic susceptibility contrast MRI. Magnetic resonance in medicine\| PubMed ID: 22190258	2012
Feasibility of pseudocontinuous arterial spin labeling at 7 T with whole-brain coverage. Magma (New York, N.Y.)\| PubMed ID: 22200964	2012
Visualization and characterization of pure and coupled modes in water-based dielectric resonators on a human 7T scanner. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 22341210	2012
Combined magnitude and phase-based segmentation of the cerebral cortex in 7T MR images of the elderly. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 22374651	2012
Elevated brain iron is independent from atrophy in Huntington's Disease. NeuroImage\| PubMed ID: 22480728	2012
Magnetic resonance compatibility of intraocular lenses measured at 7 Tesla. Investigative ophthalmology & visual science\| PubMed ID: 22538424	2012
Automated algorithm for reconstruction of the complete spine from multistation 7T MR data. Magnetic resonance in medicine\| PubMed ID: 22821374	2013
Design and evaluation of a detunable water-based quadrature HEM11 mode dielectric resonator as a new type of volume coil for high field MRI. Magnetic resonance in medicine\| PubMed ID: 22887743	2012
7 T MRI reveals diffuse iron deposition in putamen and caudate nucleus in CADASIL. Journal of neurology, neurosurgery, and psychiatry\| PubMed ID: 22923513	2012
Reliability and differentiation of pelvic floor muscle electromyography measurements in healthy volunteers using a new device: the Multiple Array Probe Leiden (MAPLe). Neurourology and urodynamics\| PubMed ID: 22972554	2013
Ultrahigh-field 7-T magnetic resonance carotid vessel wall imaging: initial experience in comparison with 3-T field strength. Investigative radiology\| PubMed ID: 22996317	2012
Radiofrequency microcoils for magnetic resonance imaging and spectroscopy. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 23142002	2013
Subject tolerance of 7 T MRI examinations. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 23150466	2013
Functional diffusion-weighted magnetic resonance spectroscopy of the human primary visual cortex at 7 T. Magnetic resonance in medicine\| PubMed ID: 23165888	2013
Detectability of absorption and reduced scattering coefficients in frequency-domain measurements using a realistic head phantom. Sensors (Basel, Switzerland)\| PubMed ID: 23262479	2012
Comparison of dixon and T1-weighted MR methods to assess the degree of fat infiltration in duchenne muscular dystrophy patients. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 23292884	2013
MR microscopy of human amyloid-β deposits: characterization of parenchymal amyloid, diffuse plaques, and vascular amyloid. Journal of Alzheimer's disease : JAD\| PubMed ID: 23340037	2013
Acceleration-selective arterial spin labeling. Magnetic resonance in medicine\| PubMed ID: 23483624	2014
Axonal and glial microstructural information obtained with diffusion-weighted magnetic resonance spectroscopy at 7T. Frontiers in integrative neuroscience\| PubMed ID: 23493316	2013
A computational study of the hydrodynamics in the nasal region of a hammerhead shark (Sphyrna tudes): implications for olfaction. PloS one\| PubMed ID: 23555780	2013
Rapid multi-echo measurement of brain metabolite T₂ values at 7 T using a single-shot spectroscopic Carr-Purcell-Meiboom-Gill sequence and prior information. NMR in biomedicine\| PubMed ID: 23564618	2013
High permittivity pads reduce specific absorption rate, improve B1 homogeneity, and increase contrast-to-noise ratio for functional cardiac MRI at 3 T. Magnetic resonance in medicine\| PubMed ID: 23661547	2014
Cortical phase changes in Alzheimer's disease at 7T MRI: a novel imaging marker. Alzheimer's & dementia : the journal of the Alzheimer's Association\| PubMed ID: 23712002	2014
Texture analysis of ultrahigh field T2*-weighted MR images of the brain: application to Huntington's disease. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 23723108	2014
Microstructural organization of axons in the human corpus callosum quantified by diffusion-weighted magnetic resonance spectroscopy of N-acetylaspartate and post-mortem histology. Brain structure & function\| PubMed ID: 23794120	2014
Exercise and type 2 diabetes mellitus: changes in tissue-specific fat distribution and cardiac function. Radiology\| PubMed ID: 23801768	2013
Increased number of microinfarcts in Alzheimer disease at 7-T MR imaging. Radiology\| PubMed ID: 24029643	2014
31P MR spectroscopy and computational modeling identify a direct relation between Pi content of an alkaline compartment in resting muscle and phosphocreatine resynthesis kinetics in active m... PloS one\| PubMed ID: 24098796	2013
Assessing the MR compatibility of dental retainer wires at 7 Tesla. Magnetic resonance in medicine\| PubMed ID: 24408149	2014
High permittivity dielectric pads improve high spatial resolution magnetic resonance imaging of the inner ear at 7 T. Investigative radiology\| PubMed ID: 24566290	2014
High spatial resolution coronary magnetic resonance angiography at 7 T: comparison with low spatial resolution bright blood imaging. Investigative radiology\| PubMed ID: 24637588	2014
The interaction between apparent diffusion coefficients and transverse relaxation rates of human brain metabolites and water studied by diffusion-weighted spectroscopy at 7 T. NMR in biomedicine\| PubMed ID: 24706330	2014
Ventricular B1 (+) perturbation at 7 T - real effect or measurement artifact? NMR in biomedicine\| PubMed ID: 24733571	2014
An eight-channel transmit/receive array of TE01 mode high permittivity ceramic resonators for human imaging at 7T. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 24818565	2014
Diffusion-weighted chemical shift imaging of human brain metabolites at 7T. Magnetic resonance in medicine\| PubMed ID: 24986121	2015
Reduced cerebral gray matter and altered white matter in boys with Duchenne muscular dystrophy. Annals of neurology\| PubMed ID: 25043804	2014
An automated tool for cortical feature analysis: Application to differences on 7 Tesla T -weighted images between young and older healthy subjects. Magnetic resonance in medicine\| PubMed ID: 25104100	2015
7T T₂*-weighted magnetic resonance imaging reveals cortical phase differences between early- and late-onset Alzheimer's disease. Neurobiology of aging\| PubMed ID: 25113794	2015
Cavity- and waveguide-resonators in electron paramagnetic resonance, nuclear magnetic resonance, and magnetic resonance imaging. Progress in nuclear magnetic resonance spectroscopy\| PubMed ID: 25456314	2014
MR of multi-organ involvement in the metabolic syndrome. Magnetic resonance imaging clinics of North America\| PubMed ID: 25476673	2015
Cortical phase changes measured using 7-T MRI in subjects with subjective cognitive impairment, and their association with cognitive function. NMR in biomedicine\| PubMed ID: 25522735	2016
Longitudinal metabolite changes in Huntington's disease during disease onset. Journal of Huntington's disease\| PubMed ID: 25575959	2014
Automated retinal topographic maps measured with magnetic resonance imaging. Investigative ophthalmology & visual science\| PubMed ID: 25593030	2015
Clinical applications of dual-channel transmit MRI: A review. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 25854179	2015
Measuring motion-induced B0 -fluctuations in the brain using field probes. Magnetic resonance in medicine\| PubMed ID: 26073175	2016
Reproducibility and optimization of in vivo human diffusion-weighted MRS of the corpus callosum at 3 T and 7 T. NMR in biomedicine\| PubMed ID: 26084563	2015
Fast cerebral flow territory mapping using vessel encoded dynamic arterial spin labeling (VE-DASL). Magnetic resonance in medicine\| PubMed ID: 26094586	2016
A theoretical approach based on electromagnetic scattering for analysing dielectric shimming in high-field MRI. Magnetic resonance in medicine\| PubMed ID: 26125996	2016
Facing and Overcoming Sensitivity Challenges in Biomolecular NMR Spectroscopy. Angewandte Chemie (International ed. in English)\| PubMed ID: 26136394	2015
In Vivo Inner Ear Imaging at 7 T. Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology\| PubMed ID: 26171673	2015
Diffusion-prepared neurography of the brachial plexus with a large field-of-view at 3T. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 26251015	2016
Time-efficient interleaved human (23)Na and (1)H data acquisition at 7 T. NMR in biomedicine\| PubMed ID: 26269329	2015
The effect of high-permittivity pads on specific absorption rate in radiofrequency-shimmed dual-transmit cardiovascular magnetic resonance at 3T. Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance\| PubMed ID: 26385206	2015
Improved Cardiac Proton Magnetic Resonance Spectroscopy at 3 T Using High Permittivity Pads. Investigative radiology\| PubMed ID: 26447495	2016
Evaluation of plasma-based transmit coils for magnetic resonance. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 26529202	2015
Proton observed phosphorus editing (POPE) for in vivo detection of phospholipid metabolites. NMR in biomedicine\| PubMed ID: 26601921	2016
Passive radiofrequency shimming in the thighs at 3 Tesla using high permittivity materials and body coil receive uniformity correction. Magnetic resonance in medicine\| PubMed ID: 26667410	2016
A new approach for electrical properties estimation using a global integral equation and improvements using high permittivity materials. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 26679289	2016
Clinical evaluation of ultra-high-field MRI for three-dimensional visualisation of tumour size in uveal melanoma patients, with direct relevance to treatment planning. Magma (New York, N.Y.)\| PubMed ID: 26915081	2016
Glial and axonal changes in systemic lupus erythematosus measured with diffusion of intracellular metabolites. Brain : a journal of neurology\| PubMed ID: 26969685	2016
Parameter optimization for reproducible cardiac H-MR spectroscopy at 3 Tesla. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 27016265	2016
Quadrature operation of segmented dielectric resonators facilitated with metallic connectors. Magnetic resonance in medicine\| PubMed ID: 27341792	2017
Practical improvements in the design of high permittivity pads for dielectric shimming in neuroimaging at 7T. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 27434779	2016
Automated eye blink detection and correction method for clinical MR eye imaging. Magnetic resonance in medicine\| PubMed ID: 27476861	2017
Diffusion-weighted-preparation (D-prep) MRI as a future extension of SPECT/CT based surgical planning for sentinel node procedures in the head and neck area? Oral oncology\| PubMed ID: 27531872	2016
Differentiating between axonal damage and demyelination in healthy aging by combining diffusion-tensor imaging and diffusion-weighted spectroscopy in the human corpus callosum at 7 T. Neurobiology of aging\| PubMed ID: 27616673	2016
Early Magnetic Resonance Imaging and Cognitive Markers of Hereditary Cerebral Amyloid Angiopathy. Stroke\| PubMed ID: 27834748	2016
A comparison of navigators, snap-shot field monitoring, and probe-based field model training for correcting B -induced artifacts in T2*-weighted images at 7 T. Magnetic resonance in medicine\| PubMed ID: 27859614	2017
Decreased cerebral perfusion in Duchenne muscular dystrophy patients. Neuromuscular disorders : NMD\| PubMed ID: 27927595	2017
A novel approach to quantify different iron forms in ex-vivo human brain tissue. Scientific reports\| PubMed ID: 27941952	2016
Improved olefinic fat suppression in skeletal muscle DTI using a magnitude-based dixon method. Magnetic resonance in medicine\| PubMed ID: 28261865	2018
Proton Magnetic Resonance Spectroscopy Indicates Preserved Cerebral Biochemical Composition in Duchenne Muscular Dystrophy Patients. Journal of neuromuscular diseases\| PubMed ID: 28269793	2017
Parsimonious continuous time random walk models and kurtosis for diffusion in magnetic resonance of biological tissue. Frontiers in physics\| PubMed ID: 28344972	2015
Flexible and compact hybrid metasurfaces for enhanced ultra high field in vivo magnetic resonance imaging. Scientific reports\| PubMed ID: 28490772	2017
Improved image quality and reduced power deposition in the spine at 3 T using extremely high permittivity materials. Magnetic resonance in medicine\| PubMed ID: 28543615	2018
Cortical glutamate in migraine. Brain : a journal of neurology\| PubMed ID: 28633367	2017
Modular transmit/receive arrays using very-high permittivity dielectric resonator antennas. Magnetic resonance in medicine\| PubMed ID: 28635034	2018
Manipulator-driven selection of semi-active MR-visible markers. The international journal of medical robotics + computer assisted surgery : MRCAS\| PubMed ID: 28660676	2018
Human-brain ferritin studied by muon spin rotation: a pilot study. Journal of physics. Condensed matter : an Institute of Physics journal\| PubMed ID: 28872048	2017
Metamaterial Combining Electric- and Magnetic-Dipole-Based Configurations for Unique Dual-Band Signal Enhancement in Ultrahigh-Field Magnetic Resonance Imaging. ACS applied materials & interfaces\| PubMed ID: 28901137	2017
Metabolic imaging of fatty kidney in diabesity: validation and dietary intervention. Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association\| PubMed ID: 28992141	2018
Design of a dielectric resonator receive array at 7 Tesla using detunable ceramic resonators. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 29024876	2017
Experimental investigation of a metasurface resonator for in vivo imaging at 1.5 T. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 29197694	2018
A simple head-sized phantom for realistic static and radiofrequency characterization at high fields. Magnetic resonance in medicine\| PubMed ID: 29498102	2018
Innovative Magnetic Resonance Imaging Markers of Hereditary Cerebral Amyloid Angiopathy at 7 Tesla. Stroke\| PubMed ID: 29695466	2018
A new quadrature annular resonator for 3 T MRI based on artificial-dielectrics. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 29702361	2018
Quantitative comparison of different iron forms in the temporal cortex of Alzheimer patients and control subjects. Scientific reports\| PubMed ID: 29720594	2018
Improvements in High Resolution Laryngeal Magnetic Resonance Imaging for Preoperative Transoral Laser Microsurgery and Radiotherapy Considerations in Early Lesions. Frontiers in oncology\| PubMed ID: 29928638	2018
Accelerating compressed sensing in parallel imaging reconstructions using an efficient circulant preconditioner for cartesian trajectories. Magnetic resonance in medicine\| PubMed ID: 30084505	2019
Studying neurons and glia non-invasively via anomalous subdiffusion of intracellular metabolites. Brain structure & function\| PubMed ID: 30088071	2018
CORE-PI: Non-iterative convolution-based reconstruction for parallel MRI in the wavelet domain. Medical physics\| PubMed ID: 30365167	2019
Cartesian MR fingerprinting in the eye at 7T using compressed sensing and matrix completion-based reconstructions. Magnetic resonance in medicine\| PubMed ID: 30421448	2019
A Platform Integrating Acquisition, Reconstruction, Visualization, and Manipulator Control Modules for MRI-Guided Interventions. Journal of digital imaging\| PubMed ID: 30483988	2019
High-permittivity pad design tool for 7T neuroimaging and 3T body imaging. Magnetic resonance in medicine\| PubMed ID: 30561797	2019
High permittivity ceramics improve the transmit field and receive efficiency of a commercial extremity coil at 1.5 Tesla. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 30580045	2019
Low-field MRI: An MR physics perspective. Journal of magnetic resonance imaging : JMRI\| PubMed ID: 30637943	2019
Systematic Analysis of the Improvements in Magnetic Resonance Microscopy with Ferroelectric Composite Ceramics. Advanced materials (Deerfield Beach, Fla.)\| PubMed ID: 31099950	2019
Design and characterization of an eight-element passively fed meander-dipole array with improved specific absorption rate efficiency for 7 T body imaging. NMR in biomedicine\| PubMed ID: 31131944	2019
A simulation study on the effect of optimized high permittivity materials on fetal imaging at 3T. Magnetic resonance in medicine\| PubMed ID: 31199014	2019
Deconstructing and reconstructing MRI hardware. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 31311711	2019
Measurement of T and T relaxation times of the pancreas at 7 T using a multi-transmit system. Magma (New York, N.Y.)\| PubMed ID: 31317369	2019
Three-dimensional MRI in a homogenous 27 cm diameter bore Halbach array magnet. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 31470234	2019
Shielded-coaxial-cable coils as receive and transceive array elements for 7T human MRI. Magnetic resonance in medicine\| PubMed ID: 31483530	2020
Silent volumetric multi-contrast 7 Tesla MRI of ocular tumors using Zero Echo Time imaging. PloS one\| PubMed ID: 31525248	2019
Adapted cabling of an EEG cap improves simultaneous measurement of EEG and fMRI at 7T. Journal of neuroscience methods\| PubMed ID: 31734326	2020
Combining deep learning and 3D contrast source inversion in MR-based electrical properties tomography. NMR in biomedicine\| PubMed ID: 31840897	2019
Water-fat separation in spiral magnetic resonance fingerprinting for high temporal resolution tissue relaxation time quantification in muscle. Magnetic resonance in medicine\| PubMed ID: 31898834	2020
Design and characterization of receive-only surface coil arrays at 3T with integrated solid high permittivity materials. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 31923765	2020
Magnetic Resonance Microscopy at Cellular Resolution and Localised Spectroscopy of Medicago truncatula at 22.3 Tesla. Scientific reports\| PubMed ID: 31969628	2020
Human Brown Adipose Tissue Estimated With Magnetic Resonance Imaging Undergoes Changes in Composition After Cold Exposure: An MRI Study in Healthy Volunteers. Frontiers in endocrinology\| PubMed ID: 31998233	2019
A flexible five-channel shielded-coaxial-cable (SCC) transceive neck coil for high-resolution carotid imaging at 7T. Magnetic resonance in medicine\| PubMed ID: 32052472	2020
The Economic Value of MR-Imaging for Uveal Melanoma. Clinical ophthalmology (Auckland, N.Z.)\| PubMed ID: 32425499	2020
The effect of mirabegron on energy expenditure and brown adipose tissue in healthy lean South Asian and Europid men. Diabetes, obesity & metabolism\| PubMed ID: 32558052	2020
CORE-Deblur: Parallel MRI Reconstruction by Deblurring using compressed sensing. Magnetic resonance imaging\| PubMed ID: 32562743	2020
A smart switching system to enable automatic tuning and detuning of metamaterial resonators in MRI scans. Scientific reports\| PubMed ID: 32572087	2020
Assessing spatial resolution, acquisition time and signal-to-noise ratio for commercial microimaging systems at 14.1, 17.6 and 22.3 T. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 32590308	2020
In vivo 3D brain and extremity MRI at 50 mT using a permanent magnet Halbach array. Magnetic resonance in medicine\| PubMed ID: 32627235	2021
Multi-parametric MR in Becker muscular dystrophy patients. NMR in biomedicine\| PubMed ID: 32754921	2020
Imaging of two samples with a single transmit/receive channel using coupled ceramic resonators for MR microscopy at 17.2 T. NMR in biomedicine\| PubMed ID: 32865259	2020
Effects of Alzheimer's disease and formalin fixation on the different mineralised-iron forms in the human brain. Scientific reports\| PubMed ID: 33020534	2020
Proton nuclear magnetic resonance J-spectroscopy of phantoms containing brain metabolites on a portable 0.05 T MRI scanner. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 33022563	2020
An artificial dielectric slab for ultra high-field MRI: Proof of concept. Journal of magnetic resonance (San Diego, Calif. : 1997)\| PubMed ID: 33065392	2020
Safety, pharmacokinetics and pharmacodynamics of SBT-020 in patients with early stage Huntington's disease, a 2-part study. British journal of clinical pharmacology\| PubMed ID: 33197078	2020
Brain Bio-Energetic State Does Not Correlate to Muscle Mitochondrial Function in Huntington's Disease. Journal of Huntington's disease\| PubMed ID: 33325391	2020