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Journal articleBangerter NK, Kaggie JD, Taylor MD, et al., 2016,
Sodium MRI radiofrequency coils for body imaging
, NMR in Biomedicine, Vol: 29, Pages: 107-118, ISSN: 0952-3480<jats:p>The proliferation of high‐field whole‐body systems, advances in gradient performance and refinement of signal‐to‐noise ratio (SNR)‐efficient short‐TE sequences suitable for sodium imaging have led to a resurgence of interest in sodium imaging for body applications. With this renewed interest has come increased demand for SNR‐efficient sodium coils. Efficient coils can significantly increase SNR in sodium imaging, allowing higher resolutions and/or shorter scan times. In this work, we focus on body imaging applications of sodium MRI, and review developments in MRI radiofrequency (RF) coil topologies for sodium imaging. We first provide a brief discussion of RF coil design considerations in sodium imaging. This is followed by an overview of common coil topologies, their advantages and disadvantages, and examples of each. Copyright © 2015 John Wiley & Sons, Ltd.</jats:p>
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Journal articleScott AD, Ferreira P, Nielles-Vallespin S, et al., 2016,
Can we predict the diffusion “sweet-spot” based on a standard cine?
, Journal of Cardiovascular Magnetic Resonance, Vol: 18, Pages: 1-3, ISSN: 1097-6647- Cite
- Citations: 1
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Book chapterInglese M, Aiello M, Cavaliere C, et al., 2016,
FDG-PET in Dementia
, PET-CT and PET-MRI in Neurology: SWOT Analysis Applied to Hybrid Imaging, ISBN: 978-3-319-31614-7 -
Journal articleScott AD, Tayal U, Nielles-Vallespin S, et al., 2016,
Accelerating cine DENSE using a zonal excitation
, Journal of Cardiovascular Magnetic Resonance, Vol: 18, Pages: 1-3, ISSN: 1097-6647- Cite
- Citations: 7
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Journal articleScott AD, Nielles-Vallespin S, Ferreira P, et al., 2016,
In-vivo cardiac DTI: An initial comparison of M012 compensated spin-echo and STEAM
, Journal of Cardiovascular Magnetic Resonance, Vol: 18, Pages: 1-3, ISSN: 1097-6647- Cite
- Citations: 2
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Journal articleWinfield JM, Collins DJ, Priest AN, et al., 2016,
A framework for optimization of diffusion-weighted MRI protocols for large field-of-view abdominal-pelvic imaging in multicenter studies.
, Medical Physics, Vol: 43, Pages: 95-110, ISSN: 0094-2405PURPOSE: To develop methods for optimization of diffusion-weighted MRI (DW-MRI) in the abdomen and pelvis on 1.5 T MR scanners from three manufacturers and assess repeatability of apparent diffusion coefficient (ADC) estimates in a temperature-controlled phantom and abdominal and pelvic organs in healthy volunteers. METHODS: Geometric distortion, ghosting, fat suppression, and repeatability and homogeneity of ADC estimates were assessed using phantoms and volunteers. Healthy volunteers (ten per scanner) were each scanned twice on the same scanner. One volunteer traveled to all three institutions in order to provide images for qualitative comparison. The common volunteer was excluded from quantitative analysis of the data from scanners 2 and 3 in order to ensure statistical independence, giving n = 10 on scanner 1 and n = 9 on scanners 2 and 3 for quantitative analysis. Repeatability and interscanner variation of ADC estimates in kidneys, liver, spleen, and uterus were assessed using within-patient coefficient of variation (wCV) and Kruskal-Wallis tests, respectively. RESULTS: The coefficient of variation of ADC estimates in the temperature-controlled phantom was 1%-4% for all scanners. Images of healthy volunteers from all scanners showed homogeneous fat suppression and no marked ghosting or geometric distortion. The wCV of ADC estimates was 2%-4% for kidneys, 3%-7% for liver, 6%-9% for spleen, and 7%-10% for uterus. ADC estimates in kidneys, spleen, and uterus showed no significant difference between scanners but a significant difference was observed in liver (p < 0.05). CONCLUSIONS: DW-MRI protocols can be optimized using simple phantom measurements to produce good quality images in the abdomen and pelvis at 1.5 T with repeatable quantitative measurements in a multicenter study.
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Conference paperJaijee S, Quinlan M, Tokarczuk P, et al., 2016,
Cardiac Magnetic Resonance Imaging In Healthy Volunteers In Normoxic And Hypoxic Exercise
, International Conference of the American-Thoracic-Society (ATS), Publisher: AMER THORACIC SOC, ISSN: 1073-449X -
Conference paperYang G, Ye X, Slabaugh G, et al., 2016,
Single-Image Super-Resolution and Its Application in Cardiac MRI: A Feasibility Study
, Pages: 1-1 -
Conference paperYang G, Ye X, Slabaugh G, et al., 2016,
Super-Resolved Enhancement of a Single Image and Its Application in Cardiac MRI
, Pages: 179-190 -
Journal articleMcGill LA, Ferreira PF, Scott AD, et al., 2016,
Relationship between cardiac diffusion tensor imaging parameters and anthropometrics in healthy volunteers
, Journal of Cardiovascular Magnetic Resonance, Vol: 18, Pages: 2-2
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Contact
For enquiries about the MRI Physics Collective, please contact:
Mary Finnegan
Senior MR Physicist at the Imperial College Healthcare NHS Trust
Pete Lally
Assistant Professor in Magnetic Resonance (MR) Physics at Imperial College
Jan Sedlacik
MR Physicist at the Robert Steiner MR Unit, Hammersmith Hospital Campus