Figure 1:

Overview of Shimming Toolbox. The toolbox is installed on a computer and can be connected directly to the scanner console to access the images as they are reconstructed. Shimming Toolbox can calculate field maps, define masks and create shim coil calibration profiles, optimize B0 and B1 shim currents and send the currents to the MRI scanner in predefined format. The bottom right panel illustrates a respiratory-modulated real-time shimming scenario, wherein the shim current for each coil element is dependent on a pressure probe that relates to the patient’s respiratory trace. The coefficients are then sent to the scanner or to the custom coil drivers.