Alexei Ouriadov
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Explore the profile of Alexei Ouriadov including associated specialties, affiliations and a list of published articles.
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35
Citations
382
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Recent Articles
1.
Perron S, Tully C, Gupta S, Fox M, Zagidulin D, Noel J, et al.
J Magn Reson
. 2025 Feb;
373:107852.
PMID: 39970493
Although the relaxation time constants of free water are relatively long, the relaxation of water in concrete and other sedimentary materials is significantly shorter. Dissolved ions and porous environments can...
2.
Babaeipour R, Ouriadov A, Fox M
Bioengineering (Basel)
. 2023 Dec;
10(12).
PMID: 38135940
This paper provides an in-depth overview of Deep Neural Networks and their application in the segmentation and analysis of lung Magnetic Resonance Imaging (MRI) scans, specifically focusing on hyperpolarized gas...
3.
Perron S, McCormack D, Parraga G, Ouriadov A
Diagnostics (Basel)
. 2023 May;
13(8).
PMID: 37189579
Multi-b diffusion-weighted hyperpolarized gas MRI measures pulmonary airspace enlargement using apparent diffusion coefficients (ADC) and mean linear intercepts (). Rapid single-breath acquisitions may facilitate clinical translation, and, hence, we aimed...
4.
Sembhi R, Ranota T, Fox M, Couch M, Li T, Ball I, et al.
Diagnostics (Basel)
. 2023 Feb;
13(3).
PMID: 36766611
Dynamic inhaled gas (He/Xe/F) MRI permits the acquisition of regional fractional-ventilation which is useful for detecting gas-trapping in lung-diseases such as lung fibrosis and COPD. Deninger's approach used for analyzing...
5.
Kooner H, McIntosh M, Matheson A, Abdelrazek M, Albert M, Dhaliwal I, et al.
Radiology
. 2023 Feb;
307(2):e222557.
PMID: 36749209
Background In individuals with postacute COVID-19 syndrome (PACS) and normal pulmonary function, xenon 129 (Xe) MRI ventilation defects, abnormal quality-of-life scores, and exercise limitation were reported 3 months after infection;...
6.
Perron S, Ouriadov A
J Magn Reson
. 2023 Feb;
348:107387.
PMID: 36731353
Magnetic Resonance Imaging (MRI) is dictated by the magnetization of the sample, and is thus a low-sensitivity imaging method. Inhalation of hyperpolarized (HP) noble gases, such as helium-3 and xenon-129,...
7.
Matheson A, McIntosh M, Kooner H, Abdelrazek M, Albert M, Dhaliwal I, et al.
Thorax
. 2023 Jan;
78(4):418-421.
PMID: 36596692
Xe MRI red blood cell to alveolar tissue plasma ratio (RBC:TP) abnormalities have been observed in ever-hospitalised and never-hospitalised people with postacute COVID-19 syndrome (PACS). But, it is not known...
8.
Matheson A, McIntosh M, Kooner H, Lee J, Desaigoudar V, Bier E, et al.
Radiology
. 2022 Jun;
305(2):466-476.
PMID: 35762891
Background: In patients with post-acute COVID-19 syndrome (PACS), abnormal gas-transfer and pulmonary vascular density have been reported, but such findings have not been related to each other or to symptoms...
9.
Kooner H, McIntosh M, Matheson A, Venegas C, Radadia N, Ho T, et al.
BMJ Open Respir Res
. 2022 May;
9(1).
PMID: 35584850
Background: Patients often report persistent symptoms beyond the acute infectious phase of COVID-19. Hyperpolarised Xe MRI provides a way to directly measure airway functional abnormalities; the clinical relevance of Xe...
10.
Perron S, Ouriadov A, Wawrzyn K, Hickling S, Fox M, Serrai H, et al.
J Magn Reson
. 2022 Feb;
336:107159.
PMID: 35183921
Inhaled hyperpolarized Xe MRI is a non-invasive and radiation risk free lung imaging method, which can directly measure the business unit of the lung where gas exchange occurs: the alveoli...