OPTIMIZING MRI CONTRASTWITH B1 PULSES USING OPTIMAL CONTROL THEORY
| Affiliation auteurs | !!!! Error affiliation !!!! |
| Titre | OPTIMIZING MRI CONTRASTWITH B1 PULSES USING OPTIMAL CONTROL THEORY |
| Type de publication | Conference Paper |
| Year of Publication | 2016 |
| Auteurs | Van Reeth E, Ratiney H, Tesch M, Glaser SJ, Sugny D |
| Conference Name | 2016 IEEE 13TH INTERNATIONAL SYMPOSIUM ON BIOMEDICAL IMAGING (ISBI) |
| Publisher | IEEE; EMB; IEEE Signal Proc Soc; Amer Elements |
| Conference Location | 345 E 47TH ST, NEW YORK, NY 10017 USA |
| ISBN Number | 978-1-4799-2349-6; 978-1-4799-2350-2 |
| Mots-clés | B1 pulse, Contrast, mri, ODIN, optimal control |
| Résumé | The variety of achievable contrasts by MRI makes it a highly flexible and valuable diagnostic tool. Contrast results from relaxation time differences, which are intrinsic properties of each tissue. Using optimal control theory, one can control the obtained contrast by applying excitation pulses that bring the magnetization in a user-defined target state. Simulation results are presented to illustrate the feasibility and the flexibility of using optimal contrast pulses. The robustness to experimental variable parameters such as field inhomogeneities is also studied. Finally, an in-vitro contrast experiment is performed on a small-animal MRI showing a reasonable match with the simulation results. |
| DOI | 10.1109/ISBI.2016.7493271 |