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Abstract #4037

Ultra-high-bandwidth, high-resolution MRI of fast relaxing spins

Romain Nicolas Froidevaux1, Markus Weiger1, Manuela B. Rosler1, Bertram Wilm1, Franciszek Hennel1, Roger Luechinger1, Benjamin Dietrich1, Jonas Reber1, and Klaas Paul Pruessmann1

1University and ETH Zurich, Z├╝rich, Switzerland

High resolution MRI of fast relaxing spins in human sets strong requirements on hardware and pulse sequences. Indeed, the acquisition duration is limited by the relaxation time of the protons of interest and high resolution can only be achieved with large magnetic field gradients. Also when large field-of-view is required, additional challenges appear. The sequence and receive hardware needs to be adapted to larger bandwidth. In this work, we image short T2 compounds in human scanners with gradient strengths up to 200 mT/m and bandwidth up to 1.63 MHz.

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