Double-Spoke Slab--Selective Ramp Pulse Design for UHF TOF MR Angiography

Gaël Saïb (1, 2) , Vincent Gras (2) , Franck Mauconduit (3) , Nicolas Boulant (2) , Alexandre Vignaud (2) , Denis Le Bihan (2) , Laurent Le Brusquet (1) , Alexis Amadon (2)

1 L2S - Laboratoire des signaux et systèmes
2 I2BM - Institut d'Imagerie BioMédicale
3 Siemens Healthineers

Recently, the use of TOF with parallel transmission at Ultra High Field demonstrated an improvement in vessel-to-background contrast and spatial resolution. This study further investigates the in-vivo feasibility to correct for blood flow saturation effects in TOF slabs with a new double-spoke ramp pulse design optimization at 7T while mitigating in-plane TOF heterogeneities.

Domaines: Traitement du signal et de l'image [eess.SP]

Gaël Saïb, Vincent Gras, Franck Mauconduit, Nicolas Boulant, Alexandre Vignaud, et al.. Double-Spoke Slab--Selective Ramp Pulse Design for UHF TOF MR Angiography. ISMRM 25th Annual Meeting & Exhibition, Apr 2017, Honolulu, United States. ⟨hal-01475112⟩