Search Results - "Walkup, L."

Retrospective respiratory self‐gating and removal of bulk motion in pulmonary UTE MRI of neonates and adults by Higano, Nara S., Hahn, Andrew D., Tkach, Jean A., Cao, Xuefeng, Walkup, Laura L., Thomen, Robert P., Merhar, Stephanie L., Kingma, Paul S., Fain, Sean B., Woods, Jason C.

“…Purpose To implement pulmonary three‐dimensional (3D) radial ultrashort echo‐time (UTE) MRI in non‐sedated, free‐breathing neonates and adults with…”
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Analytical corrections for B1‐inhomogeneity and signal decay in multi‐slice 2D spiral hyperpolarized 129Xe MRI using keyhole reconstruction by Plummer, J W, Hussain, R, Bdaiwi, A S, Costa, M L, Willmering, M M, J Parra‐Robles, Cleveland, Z I, Walkup, L L

“…PurposeHyperpolarized xenon MRI suffers from heterogeneous coil bias and magnetization decay that obscure pulmonary abnormalities. Non‐physiological signal…”
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Analytical corrections for B 1 -inhomogeneity and signal decay in multi-slice 2D spiral hyperpolarized 129 Xe MRI using keyhole reconstruction by Plummer, J W, Hussain, R, Bdaiwi, A S, Costa, M L, Willmering, M M, Parra-Robles, J, Cleveland, Z I, Walkup, L L

“…Hyperpolarized xenon MRI suffers from heterogeneous coil bias and magnetization decay that obscure pulmonary abnormalities. Non-physiological signal…”
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Quantitative Magnetic Resonance Imaging of Bronchopulmonary Dysplasia in the Neonatal Intensive Care Unit Environment by Walkup, Laura L, Tkach, Jean A, Higano, Nara S, Thomen, Robert P, Fain, Sean B, Merhar, Stephanie L, Fleck, Robert J, Amin, Raouf S, Woods, Jason C

“…Bronchopulmonary dysplasia (BPD) is a prevalent yet poorly characterized pulmonary complication of premature birth; the current definition is based solely on…”
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Lung microstructure in adolescent idiopathic scoliosis before and after posterior spinal fusion by Thomen, Robert P, Woods, Jason C, Sturm, Peter F, Jain, Viral, Walkup, Laura L, Higano, Nara S, Quirk, James D, Varisco, Brian M

“…Adolescent idiopathic scoliosis (AIS) is associated with decreased respiratory quality of life and impaired diaphragm function. Recent hyperpolarized helium…”
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Newer Imaging Techniques for Bronchopulmonary Dysplasia by Walkup, Laura L., PhD, Woods, Jason C., PhD

“…Imaging has played a vital role in the clinical assessment of bronchopulmonary dysplasia (BPD) since its first recognition. In this review, how chest…”
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Translational applications of hyperpolarized 3He and 129Xe by Walkup, Laura L., Woods, Jason C.

“…Clinical magnetic resonance imaging of the lung is technologically challenging, yet over the past two decades hyperpolarized noble gas (3He and 129Xe) imaging…”
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Importance of Dynamics in Electron Excitation and Transfer of Organic Dyes by Walkup, Laura L, Weerasinghe, Krishanthi C, Tao, Minli, Zhou, Xueqin, Zhang, Minhua, Liu, Dongzhi, Wang, Lichang

“…Electron excitation and transfer of a triphenylamine derivative, triazine, anthraquinone, oxadiazole, triazine−anthraquinone, and triazine−oxadiazole were…”
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Neonatal Pulmonary Magnetic Resonance Imaging of Bronchopulmonary Dysplasia Predicts Short-Term Clinical Outcomes by Higano, Nara S, Spielberg, David R, Fleck, Robert J, Schapiro, Andrew H, Walkup, Laura L, Hahn, Andrew D, Tkach, Jean A, Kingma, Paul S, Merhar, Stephanie L, Fain, Sean B, Woods, Jason C

“…Bronchopulmonary dysplasia (BPD) is a serious neonatal pulmonary condition associated with premature birth, but the underlying parenchymal disease and…”
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Near-unity nuclear polarization with an open-source ¹²⁹Xe hyperpolarizer for NMR and MRI by Nikolaou, Panayiotis, Coffey, Aaron M., Walkup, Laura L., Gust, Brogan M., Whiting, Nicholas, Newton, Hayley, Barcus, Scott, Muradyan, Iga, Dabaghyan, Mikayel, Moroz, Gregory D., Rosen, Matthew S., Patz, Samuel, Barlow, Michael J., Chekmenev, Eduard Y., Goodson, Boyd M.

“…The exquisite NMR spectral sensitivity and negligible reactivity of hyperpolarized xenon-129 (HP ¹²⁹Xe) make it attractive for a number of magnetic resonance…”
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The Clinical Use of Lung MRI in Cystic Fibrosis: What, Now, How? by Dournes, Gaël, Walkup, Laura L, Benlala, Ilyes, Willmering, Matthew M, Macey, Julie, Bui, Stephanie, Laurent, François, Woods, Jason C

“…To assess airway and lung parenchymal damage noninvasively in cystic fibrosis (CF), chest MRI has been historically out of the scope of routine clinical…”
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Quantifying Spatial Distribution of Ventilation Defects in Multiple Pulmonary Diseases With Hyperpolarized 129Xenon MRI by Bdaiwi, Abdullah S, Willmering, Matthew M, Woods, Jason C, Walkup, Laura L, Cleveland, Zackary I

“…Hyperpolarized 129Xe MRI assesses lung ventilation, often using the ventilation defect percentage (VDP). Unlike VDP, defect distribution index (DDI) quantifies…”
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Quantifying Spatial Distribution of Ventilation Defects in Multiple Pulmonary Diseases With Hyperpolarized 129 Xenon MRI by Bdaiwi, Abdullah S, Willmering, Matthew M, Woods, Jason C, Walkup, Laura L, Cleveland, Zackary I

“…Hyperpolarized Xe MRI assesses lung ventilation, often using the ventilation defect percentage (VDP). Unlike VDP, defect distribution index (DDI) quantifies…”
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Removal of off‐resonance xenon gas artifacts in pulmonary gas‐transfer MRI by Willmering, Matthew M., Cleveland, Zackary I., Walkup, Laura L., Woods, Jason C.

“…Purpose Hyperpolarized xenon (129Xe) gas‐transfer imaging allows different components of pulmonary gas transfer—alveolar air space, lung interstitium/blood…”
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B1 and magnetization decay correction for hyperpolarized 129Xe lung imaging using sequential 2D spiral acquisitions by Bdaiwi, Abdullah S., Costa, Mariah L., Plummer, Joseph W., Willmering, Matthew M., Walkup, Laura L., Cleveland, Zackary I.

“…Purpose To mitigate signal variations caused by inhomogeneous RF and magnetization decay in hyperpolarized 129Xe ventilation images using flip‐angle maps…”
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Xenon-129 MRI detects ventilation deficits in paediatric stem cell transplant patients unable to perform spirometry by Walkup, Laura L, Myers, Kasiani, El-Bietar, Javier, Nelson, Adam, Willmering, Matthew M, Grimley, Michael, Davies, Stella M, Towe, Christopher, Woods, Jason C

“…Early detection of pulmonary morbidity following haematopoietic stem cell transplantation (HSCT) remains an important challenge for intervention, primarily due…”
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Xe Ventilation and Gas‐Exchange MRI Abnormalities in Children with Neuroendocrine Cell Hyperplasia of Infancy (NEHI) by Anderson, Melanie A., Masokano, Bilal I., Plummer, Joseph W., Willmering, Matthew M., Krivchenia, Katelyn, Towe, Christopher T., Walkup, Laura L.

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B 1 and magnetization decay correction for hyperpolarized 129 Xe lung imaging using sequential 2D spiral acquisitions by Bdaiwi, Abdullah S, Costa, Mariah L, Plummer, Joseph W, Willmering, Matthew M, Walkup, Laura L, Cleveland, Zackary I

“…To mitigate signal variations caused by inhomogeneous RF and magnetization decay in hyperpolarized Xe ventilation images using flip-angle maps generated from…”
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A decay‐modeled compressed sensing reconstruction approach for non‐Cartesian hyperpolarized 129Xe MRI by Plummer, Joseph W, Hussain, Riaz, Bdaiwi, Abdullah S, Soderlund, Stephanie A, Hoyos, Xavier, Lanier, John M, Garrison, William J, Juan Parra‐Robles, Willmering, Matthew M, Niedbalski, Peter J, Cleveland, Zackary I, Walkup, Laura L

“…PurposeHyperpolarized 129Xe MRI benefits from non‐Cartesian acquisitions that sample k‐space efficiently and rapidly. However, their reconstructions are…”
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129Xe Image Processing Pipeline: An open-source, graphical user interface application for the analysis of hyperpolarized 129Xe MRI by Bdaiwi, Abdullah S, Willmering, Matthew M, Plummer, Joseph W, Hussain, Riaz, Roach, David J, Parra-Robles, Juan, Niedbalski, Peter J, Woods, Jason C, Walkup, Laura L, Cleveland, Zackary I

“…Hyperpolarized 129Xe MRI presents opportunities to assess regional pulmonary microstructure and function. Ongoing advancements in hardware, sequences, and…”
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