Method and system for magnetic resonance imaging

• Main Authors: Radhouene Neji, Claudia Prieto, Karl-Philipp Kunze, Christoph Forman, Rene Botnar
• Format: Patent
• Language: English
• Published: 03.03.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MEDICAL OR VETERINARY SCIENCE; PHYSICS; SURGERY; TESTING

A method of correcting for motion in magnetic resonance images during image acquisition using a magnetic resonance imaging (MRI) apparatus comprising a plurality of coils for receiving signals, the method comprising receiving a user-defined region of interest of a body to be imaged S100; scanning, using the MRI apparatus, at least the region of interest of the body S102; and, generating a navigator image S106of the region of interest by performing a weighted combination of a signal received by each coil during the scanning S104. Determining the weighted contribution of each coil may comprise determining a distance of each coil form the region of interest and assigning a high or low weight to each coil which is close or further away from the region of interest respectively. Determining the weighted contribution of each coil may comprise performing a prescan over the region of interest and assigning a weight to each coil based on a determined coil sensitivity wherein a high or low sensitivity is assigned to each coil producing a bright or dim image in the prescan respectively.