Výsledky vyhledávání - "J. Parra-Robles"

Incorporation of prior knowledge of the signal behavior into the reconstruction to accelerate the acquisition of MR diffusion data

Autor: Juan F. P. J. Abascal, J. Parra-Robles, Manuel Desco

Publikováno v: IEEE Transactions on Medical Imaging
IEEE Transactions on Medical Imaging, Institute of Electrical and Electronics Engineers, 2017, ⟨10.1109/TMI.2017.2765281⟩
IEEE Transactions on Medical Imaging, 2017, ⟨10.1109/TMI.2017.2765281⟩

Diffusion MRI data are generally acquired using hyperpolarized gases during patient breath-hold, which yields a compromise between achievable image resolution, lung coverage, and number of $b$ -values. In this paper, we propose a novel method that ac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e515908f7071a081dd21f839dfbf63a
https://hal.archives-ouvertes.fr/hal-01462812v2/document

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Comparison of in-vivo lung morphometry models from multiple b-value diffusion-weighted MRI in healthy controls, IPF and COPD patients

Autor: Guilhem Collier, Jim M. Wild, J. Parra-Robles, Ho-Fung Chan

Publikováno v: Imaging.

Introduction: Two models of gas diffusion MRI, namely the cylinder model (CM) [Yablonskiy, D. A., et al. (2002). PNAS 99(5)] and the stretched exponential model (SEM) [Parra-Robles, J., et al. (2014). Proc ISMRM:3529], have been proposed for quantita

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd3c52d6d126ef4ed4e19ed603da375e
https://doi.org/10.1183/1393003.congress-2017.oa4644

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WS15.2 Multiple breath washout and imaging with 3 He MRI and CT scans to monitor early-stage lung disease in patients with cystic fibrosis

Autor: Guilhem Collier, Laurie Smith, David A. Hughes, J. Parra-Robles, Felix Horn, Ina Aldag, Steve Cunningham, H. Marshall, Andrew J. Swift, Jim M. Wild, Chris M. Taylor, Paul Hughes, Alex Horsley

Publikováno v: Journal of Cystic Fibrosis. 15:S24-S25

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::63a15d1045062906c49da5f96a62f198
https://doi.org/10.1016/s1569-1993(16)30146-1

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Lung ventilation volumetry with same-breath acquisition of hyperpolarized gas and proton MRI

Autor: F C, Horn, B A, Tahir, N J, Stewart, G J, Collier, G, Norquay, G, Leung, R H, Ireland, J, Parra-Robles, H, Marshall, J M, Wild

Publikováno v: NMR in biomedicine. 27(12)

The purpose of this work was to assess the reproducibility of percentage of ventilated lung volume (PV) measured from hyperpolarized (HP) (3)He and (1)H anatomical images acquired in the same breath-hold when compared with PV measured from (3)He and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::1c423096f772b74b2c38389151065327
https://pubmed.ncbi.nlm.nih.gov/25208220

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Acquisition of ³He ventilation images, ADC, T₂* and B₁ maps in a single scan with compressed sensing

Autor: S, Ajraoui, J, Parra-Robles, H, Marshall, M H, Deppe, M, Clemence, J M, Wild

Publikováno v: NMR in biomedicine. 25(1)

In imaging of human lungs with hyperpolarised noble gases, measurements of apparent diffusion coefficient (ADC) and relaxation time provide valuable information for the assessment of lung microstructure. In this work, a sequence was developed for int

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::994492003c616ebaa182289b28102997
https://pubmed.ncbi.nlm.nih.gov/22241670

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