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The eGaIn coil on neoprene demonstrated in this paper presents a stretchable radio frequency receive coil for MRI. The coil with dimensions 86mm × 70mm is tuned to resonate at 128MHz for 3T MRI. We investigate the effect of stretching (up to 40% strain) and bending (50mm radius of curvature) of the coil on the coil's resistance and resonance frequency. Measurements and simulations show a decrease in resonance frequency of 2.5MHz per 10% strain. The higher resistivity of liquid metal compared to copper reduces the SNR of MRI scans by 2.1dB; therefore a trade-off between flexibility and performance remains. Nevertheless, we have successfully performed MRI scans with the liquid metal coil.
This article was published in the following journal.
Name: IEEE transactions on bio-medical engineering
Radiofrequency (RF) coils are an essential MRI hardware component. They directly impact the spatial and temporal resolution, sensitivity, and uniformity in MRI. Advances in RF hardware have resulted i...
Vibrational spectroscopy of water contains a wealth of information about the structure and dynamics of this fascinating substance. Theoretical modeling of fundamental vibrational transitions in conden...
Transmit arrays are essential tools for various RF shimming or parallel excitation techniques at 7T. Here we present an array design with triangular coils to improve diversity in the Bprofiles in the ...
The liquid and glass states of metal-organic frameworks (MOFs) have recently become of interest due to the potential for liquid-phase separations and ion transport, alongside the fundamental nature o...
In this paper, direct matching methods for coils and preamplifiers in receiver arrays are presented. Instead of compensating the reactance of the input impedance of preamplifiers, in our method, the r...
Symptomatic and asymptomatic patients wearing Metal on Metal hip prosthesis will be enrolled in the study and periimplant pseudotumors will be searched by means of NMR (Nuclear Magnetic Re...
The purpose of this study is to obtain chemical information from part of your body without a biopsy. This is done using a technique called magnetic resonance spectroscopy (MRS) which is si...
A prototype colonoscope with an extra passively bending distal section has been developed by Olympus Japan (ref. publications). The present study (2006-2007) is testing refinements of this...
RATIONALE: Diagnostic procedures, such as magnetic resonance imaging, may help doctors predict a patient's response to treatment and help plan the best treatment. PURPOSE: This clinical tr...
RATIONALE: New diagnostic procedures, such as 3 Tesla magnetic resonance imaging (MRI), may help find bladder cancer and learn the extent of disease. PURPOSE: This clinical trial is study...
Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING).
A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.
Deformities of the SPINE characterized by abnormal bending or flexure in the vertebral column. They may be bending forward (KYPHOSIS), backward (LORDOSIS), or sideway (SCOLIOSIS).
A type of MAGNETIC RESONANCE IMAGING that uses only one nuclear spin excitation per image and therefore can obtain images in a fraction of a second rather than the minutes required in traditional MRI techniques. It is used in a variety of medical and scientific applications.
The creation of a visual display of the inside of the entire body of a human or animal for the purposes of diagnostic evaluation. This is most commonly achieved by using MAGNETIC RESONANCE IMAGING; or POSITRON EMISSION TOMOGRAPHY.
Radiology is the branch of medicine that studies imaging of the body; X-ray (basic, angiography, barium swallows), ultrasound, MRI, CT and PET. These imaging techniques can be used to diagnose, but also to treat a range of conditions, by allowing visuali...