Work

Pushing the image quality by integrating FatNav and pTx Universal Pulses in MPRAGE and MP2RAGE sequences at 7T

Year: 2024

Type: conference-paper

Abstract: Motivation: Ultra-high field MRI of the brain suffers from an increased B1+ inhomogeneity as well as involuntary motion artifacts when very high spatial resolution is targeted. Goal(s): Integration of a FatNav technique into pTx Universal Pulse sequences would be beneficial to reach the best image quality at very high resolution. Approach: An MP(2)RAGE sequence using GRAPE pTx universal pulses was modified to integrate a FatNav module. High-resolution protocols were acquired in vivo on the brain. Results: Very high-quality images were obtained throughout the brain and cerebellum thanks to FatNav motion correction and pTx Universal Pulses. Impact: The ultra-high field community targetting high-resolution protocols on the whole brain would benefit from a FatNav-enabled PASTEUR package to bring robust protocols against B1+ inhomogeneities and involuntary motion of the head.

Source: Proceedings on CD-ROM - International Society for Magnetic Resonance in Medicine. Scientific Meeting and Exhibition/Proceedings of the International Society for Magnetic Resonance in Medicine, Scientific Meeting and Exhibition

DOI: 10.58530/2024/4895