Graham Norquay
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Explore the profile of Graham Norquay including associated specialties, affiliations and a list of published articles.
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Articles
39
Citations
537
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Recent Articles
1.
Pilgrim-Morris J, Collier G, Takigawa M, Strickland S, Thompson R, Norquay G, et al.
Magn Reson Med
. 2024 Oct;
93(2):584-596.
PMID: 39423219
Purpose: To assess the regional amplitude and phase of dissolved Xe red blood cell (RBC) signal oscillations in the lung vasculature with keyhole spectroscopic imaging and to compare with previous...
2.
Pilgrim-Morris J, Collier G, Munro R, Norquay G, Stewart N, Wild J
Magn Reson Med
. 2024 Sep;
93(2):741-750.
PMID: 39323101
Purpose: Three-dimensional hyperpolarized Xe gas exchange imaging suffers from low SNR and long breath-holds, which could be improved using compressed sensing (CS). The purpose of this work was to assess...
3.
Stewart N, de Arcos J, Biancardi A, Collier G, Smith L, Norquay G, et al.
Magn Reson Med
. 2024 Aug;
92(6):2546-2559.
PMID: 39155454
Purpose: To evaluate the feasibility and utility of a deep learning (DL)-based reconstruction for improving the SNR of hyperpolarized Xe lung ventilation MRI. Methods: Xe lung ventilation MRI data acquired...
4.
Collier G, Smith L, Saunders L, Swift A, Marshall H, Stewart N, et al.
Magn Reson Med
. 2024 May;
92(4):1471-1483.
PMID: 38726472
Purpose: To characterize the dependence of Xe-MRI gas transfer metrics upon age, sex, and lung volume in a group of healthy volunteers. Methods: Sixty-five subjects with no history of chronic...
5.
Eaden J, Weatherley N, Chan H, Collier G, Norquay G, Swift A, et al.
ERJ Open Res
. 2023 Aug;
9(4).
PMID: 37650085
Background: Hyperpolarised 129-xenon (Xe) magnetic resonance imaging (MRI) shows promise in monitoring the progression of idiopathic pulmonary fibrosis (IPF) due to the lack of ionising radiation and the ability to...
6.
Astley J, Biancardi A, Marshall H, Smith L, Hughes P, Collier G, et al.
Sci Rep
. 2023 Jul;
13(1):11273.
PMID: 37438406
Functional lung imaging modalities such as hyperpolarized gas MRI ventilation enable visualization and quantification of regional lung ventilation; however, these techniques require specialized equipment and exogenous contrast, limiting clinical adoption....
7.
Longitudinal Lung Function Assessment of Patients Hospitalized With COVID-19 Using H and Xe Lung MRI
Saunders L, Collier G, Chan H, Hughes P, Smith L, Watson J, et al.
Chest
. 2023 Mar;
164(3):700-716.
PMID: 36965765
Background: Microvascular abnormalities and impaired gas transfer have been observed in patients with COVID-19. The progression of pulmonary changes in these patients remains unclear. Research Question: Do patients hospitalized with...
8.
Collier G, Schulte R, Rao M, Norquay G, Ball J, Wild J
Magn Reson Med
. 2023 Feb;
89(6):2217-2226.
PMID: 36744585
Purpose: Imaging of the different resonances of hyperpolarized Xe in the brain and lungs was performed using a 3D sampling density-weighted MRSI technique in healthy volunteers. Methods: Four volunteers underwent...
9.
Ball J, Wild J, Norquay G
Molecules
. 2023 Jan;
28(1).
PMID: 36615208
Accurate knowledge of the rubidium (Rb) vapor density, [Rb], is necessary to correctly model the spin dynamics of 129Xe-Rb spin-exchange optical pumping (SEOP). Here we present a systematic evaluation of...
10.
Chan H, Smith L, Biancardi A, Bray J, Marshall H, Hughes P, et al.
Am J Respir Crit Care Med
. 2022 Aug;
207(1):89-100.
PMID: 35972833
Preterm birth is associated with low lung function in childhood, but little is known about the lung microstructure in childhood. We assessed the differential associations between the historical diagnosis of...