Výsledky vyhledávání - "Permi Jhooti"

Magnetic resonance navigator echo diaphragm monitoring in patients with suspected diaphragm paralysis

Autor: Anita K. Simonds, Andrew M. Taylor, Dudley J. Pennell, Permi Jhooti, Jennifer Keegan

Publikováno v: Journal of Magnetic Resonance Imaging. 9:69-74

Real-time magnetic resonance (MR) navigator echo (NE) monitoring of the diaphragm is now possible. Using this technique, temporal changes in diaphragm position can be analyzed in a non-invasive fashion, without x-ray exposure. In this preliminary stu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::46459b0dbf00044f1cf5ca9a4b1cbb83
https://doi.org/10.1002/(sici)1522-2586(199901)9:1<69::aid-jmri9>3.0.co

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Hybrid ordered phase encoding (HOPE): An improved approach for respiratory artifact reduction

Autor: Andrew M. Taylor, Guang Z. Yang, Frank Wiesmann, Jennifer Keegan, David N. Firmin, Peter D. Gatehouse, Permi Jhooti, Dudley J. Pennell

Publikováno v: Journal of Magnetic Resonance Imaging. 8:968-980

Respiration causes continuous change in cardiac position, which leads to image degradation. Phase-encode reordering methods are often used to reduce these artifacts. An improved method for suppressing motion artifacts by reordering the acquisition of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24861ce9f6ffbdad262dc7af463d9a8c
https://doi.org/10.1002/jmri.1880080428

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Improved respiratory efficiency of 3D late gadolinium enhancement imaging using the continuously adaptive windowing strategy (CLAWS)

Autor: Jennifer Keegan, David N. Firmin, Sonya V. Babu-Narayan, Sabine Ernst, Permi Jhooti, Peter Drivas

Publikováno v: Magnetic resonance in medicine. 71(3)

Purpose Acquisition durations of navigator-gated high-resolution three-dimensional late gadolinium enhancement studies may typically be up to 10 min, depending on the respiratory efficiency and heart rate. Implementation of the continuously adaptive

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c14ba4ddd857cbf21a8eb8bb60639c08
https://pubmed.ncbi.nlm.nih.gov/23605998

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Efficient 3D late gadolinium enhancement imaging using the CLAWS respiratory motion control algorithm

Autor: Jennifer Keegan, David N. Firmin, Peter Drivas, Sabine Ernst, Sonya V. Babu-Narayan, Permi Jhooti

Publikováno v: Journal of Cardiovascular Magnetic Resonance, Vol 15, Iss Suppl 1, p O63 (2013)
Journal of Cardiovascular Magnetic Resonance

Background Acquisition durations of navigator gated high resolution 3D late gadolinium enhancement (LGE) studies are long (1,2). While implementation of the continuously adaptive windowing strategy (CLAWS (3)) - which results in the fastest possible

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f64e49887d353b0d23afc65d8128cd7
https://doi.org/10.1186/1532-429x-15-s1-o63

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MR-imaging of the thoracic aorta: 3D-ECG- and respiratory-gated bSSFP imaging using the CLAWS algorithm versus contrast-enhanced 3D-MRA

Autor: David Dashti, Leopold Winter, Tanja Haas, Jens Bremerich, Peter Buser, Michael J. Zellweger, Klaus Scheffler, Nadine Kawel, Jennifer Keegan, Permi Jhooti

Publikováno v: European Journal of Radiology

Objective To compare a contrast-enhanced 3D angiography (CE-3D-MRA) with the ECG- and respiratory gated 3D balanced steady state free precession (bSSFP) sequence using the CLAWS algorithm (3D-bSSFP-CLAWS) with respect to acquisition time, image quali

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9037bd331c31d55eb23179c39ab8ba4d
https://hdl.handle.net/11858/00-001M-0000-0013-B828-E

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Recovery of the default mode network after demanding neurofeedback training occurs in spatio-temporally segregated subnetworks

Autor: Permi Jhooti, Tanja Haas, Dimitri Van De Ville, Klaus Scheffler, Karl-Olof Lövblad, Sven Haller, Rotem Kopel

Publikováno v: NeuroImage, Vol. 63, No 4 (2012) pp. 1775-1781
NeuroImage

The default mode (DM) network is a major large-scale cerebral network that can be identified with functional magnetic resonance imaging (fMRI) during resting state. Most studies consider functional connectivity networks as stationary phenomena. Conse

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b21ae363c22543bdbabbb55b63cb1b3
https://archive-ouverte.unige.ch/unige:31973

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Evaluation of free-breathing three-dimensional magnetic resonance coronary angiography with hybrid ordered phase encoding (HOPE) for the detection of proximal coronary artery stenosis

Autor: Jennifer Keegan, Catherine Bunce, Permi Jhooti, Nicholas H. Bunce, David N. Firmin, Christine H. Lorenz, Shelley L. Rahman, Dudley J. Pennell, Simon W. Davies

Publikováno v: Journal of magnetic resonance imaging : JMRI. 14(6)

We evaluated free-breathing, prospective navigator-gated, three-dimensional (3D) magnetic resonance coronary angiography (MRCA) with hybrid ordered phase-encoding (HOPE), in the detection of proximal coronary artery stenosis. The coronary arteries we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89454ae94a983bc64d4b412c36cebed4
https://pubmed.ncbi.nlm.nih.gov/11747023

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Calculation of a subject-specific adaptive motion-correction factor for improved real-time navigator echo-gated magnetic resonance coronary angiography

Autor: David N. Firmin, Permi Jhooti, Jennifer Keegan, Dudley J. Pennell, Andrew M. Taylor

Publikováno v: Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance. 1(2)

There has been conflicting data in the literature regarding the use of wide navigator echo (NE) acceptance windows in combination with adaptive motion correction for magnetic resonance coronary angiography (MRCA). This in part may be due to the use o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c934e398d14615977a04fc7b6b1aa92e
https://pubmed.ncbi.nlm.nih.gov/11550345

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