Fast online spectral-spatial pulse design for subject-specific fat saturation in cervical spine and foot imaging at 1.5 T

• Published in: Magma (New York, N.Y.) Vol. 37; no. 2; pp. 257 - 272
• Main Authors: Eisen, Christian Karl, Liebig, Patrick, Herrler, Jürgen, Ritter, Dieter, Lévy, Simon, Uder, Michael, Nagel, Armin Michael, Grodzki, David
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.04.2024
• Subjects: Basic Science - Contrast mechanisms; Biomedical Engineering and Bioengineering; Computer Appl. in Life Sciences; Health Informatics; Imaging; Medicine; Medicine & Public Health; Radiology; Research Article; Solid State Physics; 1.5 T MRI; Dynamic RF pulses; Fat saturation; Dynamic transmission; Pulse design

Objective To compensate subject-specific field inhomogeneities and enhance fat pre-saturation with a fast online individual spectral-spatial (SPSP) single-channel pulse design. Methods The RF shape is calculated online using subject-specific field maps and a predefined excitation k-space trajectory....