OPTIMIZATION OF PULSED CHEMICAL EXCHANGE SATURATION TRANSFER MRI BY OPTIMAL CONTROL

Beschreibung

Abstract The goal of this work was to design improved Chemical Exchange Saturation Transfer MRI
RF pulses applicable to whole-body clinical scanners.
Conventionally, CEST imaging requires a long continuous wave saturation pulse, however, due to hardware limitations, only pulsed saturation is practicable
for in vivo scanners. Consequently, RF pulses with a
duty cycle of 90% are designed by optimal control. The
simulation results were compared to a 100% duty cycle Continuous-Wave pulse and a 90% Gaussian
standard pulse. The optimal control pulse showed superior efficiency to the Gaussian pulse and comparable performance to the Continuous-Wave pulse, while
transmitting less energy to the patient.

Zeitraum	30 Juli 2021
Ereignistitel	Annual Meeting of the Austrian Society for Biomedical Engineering ÖGBMT2021
Veranstaltungstyp	Konferenz
Ort	Graz, ÖsterreichAuf Karte anzeigen
Bekanntheitsgrad	National