MR Cholangiopancreatography: 1.5T versus 3T

Renal imaging at 7 Tesla: preliminary results

“…Utilisation of MRI at 1.5T is considered the clinical standard in most centres. However, high-field MRI of the abdomen at 3T has been proven to be feasible over the last few years [2][3][4][5][6][7][8][9]. An increase in the magnetic field strength is associated with increased signal-to-noise ratio (SNR).…”

“…An increase in the magnetic field strength can provoke artefacts because of changes in tissue susceptibility, chemical shift, or signal heterogeneities due to radiofrequency (RF) wavelength effects [8,14,15]. Furthermore, the energy deposited by RF waves is known to be restrictive at high-field imaging, as the RF absorption increases proportionally to the square of the static magnetic field.…”