MRImagnetMagnexsuperconductingFor whole-body MRI, an ultra-high field (UHF) magnet is currently defined as a system operating at 7 T or above. Over 70 UHF magnets have been built, all with the same technical approach originally developed by Magnex Scientific Ltd. The preferred coil configuration...
In common NMRD studies, T1 relaxation is measured in a range of magnetic field strengths using pulsed magnets, commonly known as fast field cycling relaxometers. Their range of magnetic fields is limited from μT up to 2 T15,16,17 (~40 Hz–80 MHz for proton MRI), because higher ...
Over the years, improvements to major MRI scanner system components (for example, magnetic field gradient coils22,23,24and radiofrequency (RF) receiver array coils25) have led to higher signal-to-noise ratio (SNR) and higher resolution imaging or faster image acquisition (acceleration). However,...
Researchers use the ultra-high-field MRI scanners for scientific and medical research, especially for brain imaging. The research is intended to contribute to earlier detection, better diagnosis, and improved effectiveness for many medical disorders and diseases. Richard Hausmann, president and CEO of ...
MRIMagnetUltra-high fieldREBCOHTS coilScreening currentA project to develop an ultra-high-field magnetic resonance imaging (MRI) system based on HTS magnets using (RE)Ba2Cu3O7 (REBCO; RE=rear earth) coils is underway. The project is supported by the Japanese Ministry of Economy, Trade and ...
) were performed on our 0.055 T MRI scanner, when implementing FSE and EPI sequences. FSE and EPI are the most common sequences in high-field clinical MRI. We optimized the four scan protocols for both image SNR and contrast characteristics similar to those of clinical high-field MRI....
this was attributed to the high surface activity. The field-dependent magnetization curve revealed that both the Fe3O4NPs and the Fe3O4@P-NPO/PEG-Glc@Ce6 nanoprobes exhibited superparamagnetic properties at room temperature, which was an important factor for the T2 contrast agents (Supplementary...