Results 171 to 180 of about 3,039 (204)
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Magnetic Resonance Imaging, 2018
We present three-dimensional ultrashort echo time Cones (3D-UTE-Cones) imaging as well as quantification of T2* and magnetization transfer ratio (MTR) of Achilles tendon and its enthesis of healthy volunteers and patients with psoriatic arthritis (PsA) using a 3T scanner.
Bimin, Chen +7 more
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We present three-dimensional ultrashort echo time Cones (3D-UTE-Cones) imaging as well as quantification of T2* and magnetization transfer ratio (MTR) of Achilles tendon and its enthesis of healthy volunteers and patients with psoriatic arthritis (PsA) using a 3T scanner.
Bimin, Chen +7 more
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ISMRM Annual Meeting
Motivation: Ultra short echo time (UTE) has been developed to capture the rapid signal decay of short T2* species, to overcome the insensitivity of conventional MRI towards micro-calcification, a central prognostic marker of breast cancer. Goal(s): To examine the degree of calcification in breast tumour specimens using UTE.
Yazan Ayoub +6 more
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Motivation: Ultra short echo time (UTE) has been developed to capture the rapid signal decay of short T2* species, to overcome the insensitivity of conventional MRI towards micro-calcification, a central prognostic marker of breast cancer. Goal(s): To examine the degree of calcification in breast tumour specimens using UTE.
Yazan Ayoub +6 more
openaire +1 more source
Magnetic Resonance Imaging, 2015
Blood circulation is an important determinant of the biodistribution of superparamagnetic iron oxide nanoparticles. Here we present a magnetic resonance imaging (MRI) technique based on the use of ultrafast echo times (UTE) for the noninvasive determination of blood half-lives at high particle concentrations, when conventional pulse sequences fail to ...
Constantin, Scharlach +2 more
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Blood circulation is an important determinant of the biodistribution of superparamagnetic iron oxide nanoparticles. Here we present a magnetic resonance imaging (MRI) technique based on the use of ultrafast echo times (UTE) for the noninvasive determination of blood half-lives at high particle concentrations, when conventional pulse sequences fail to ...
Constantin, Scharlach +2 more
openaire +2 more sources
Regional Ventilation Quantification Using Ultrashort Echo Time (UTE) Lung MRI
B28. SEE FOR YOURSELF: EVALUATING LUNG FUNCTION WITH CT AND MRI, 2022F. Tan, P. Larson
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ISMRM Annual Meeting
This abstract compares the 3D UTE 1H ventilation calculated from Motion-Compensated Low-Rank constrained reconstruction (MoCoLoR) with the hyperpolarized 129Xe ventilation for validation. The dataset covers healthy volunteers and pediatric and adult patients with cystic fibrosis (CF). We validated that 3D UTE 1H has a positively correlated VDP with the
Fei Tan +4 more
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This abstract compares the 3D UTE 1H ventilation calculated from Motion-Compensated Low-Rank constrained reconstruction (MoCoLoR) with the hyperpolarized 129Xe ventilation for validation. The dataset covers healthy volunteers and pediatric and adult patients with cystic fibrosis (CF). We validated that 3D UTE 1H has a positively correlated VDP with the
Fei Tan +4 more
openaire +1 more source
Accelerated Spiral Ultrashort Echo Time (Spiral-UTE) MRI of the Lung Using Deep Learning
ISMRM Annual MeetingMotivation: Spiral-UTE MRI has been proposed for more efficient lung imaging to permit breath-hold ultra-short echo time acquisition of the lung. It is more valuable to further accelerate the acquisition of the spiral-UTE MRI of lung images, thus enabling shorter breath-holds and higher spatial resolutions.
Haoyang Pei, Yao Wang, Li Feng
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Ultrashort Echo Time (UTE) Imaging for Contrast Agent Deposition Measurement: A Review
Theoretical and Natural ScienceThe deposition of Gadolinium-based contrast agents (GBCAs) has become a growing concern in the field of enhanced Magnetic Resonance Imaging (MRI). GBCAs have been found to be accumulate in various tissues, including the brain and bone, leading to potential long-term health risks, even in patients with normal renal function.
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Ultrashort Echo Time Quantitative Conductivity Mapping (UTE-QCM) in The Knee: A Feasibility Study
ISMRM Annual MeetingMotivation: Conductivity reflects ionic composition (sodium), providing critical insights into various diseases. QCM can offer this information, but there is currently no effective technique for MSK tissues with short T2. Goal(s): The aim of this study is to develop UTE-QCM using UTE-DESS and validate its feasibility.
Jinil Park +4 more
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ISMRM Annual Meeting
Micro-calcification is a central feature of breast cancer, and clinically revealed on mammography. Mammography, a two dimensional imaging approach, is inadequate to provide refined classification. Conventional MRI cannot capture the rapid signal decay from micro-calcification, with Ultra Short Echo Time (UTE) developed to image short T2* species.
Yazan Ayoub +5 more
openaire +1 more source
Micro-calcification is a central feature of breast cancer, and clinically revealed on mammography. Mammography, a two dimensional imaging approach, is inadequate to provide refined classification. Conventional MRI cannot capture the rapid signal decay from micro-calcification, with Ultra Short Echo Time (UTE) developed to image short T2* species.
Yazan Ayoub +5 more
openaire +1 more source
ISMRM Annual Meeting
Quantitative ultrashort echo time (UTE) MRI can be used for quantitative assessment of intervertebral discs (IVDs). It is hypothesized that the investigation of quantitative UTE MRI properties of IVD under mechanical loading may highlight the affected regions of IVD by diseases and injuries.
Saeed Jerban +7 more
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Quantitative ultrashort echo time (UTE) MRI can be used for quantitative assessment of intervertebral discs (IVDs). It is hypothesized that the investigation of quantitative UTE MRI properties of IVD under mechanical loading may highlight the affected regions of IVD by diseases and injuries.
Saeed Jerban +7 more
openaire +1 more source