Quality-based UnwRap of SUbdivided Large Arrays (URSULA) for High-Resolution MRI Data

Multidimensional phase data acquired in Magnetic Resonance Imaging (MRI) reflect the position-dependent, in-plane orientation of the transverse magnetisation, observed within a rotating frame of reference. In a hypothetical ideal experiment on a homogeneous medium, the phase is expected to be constant (zero) throughout the volume. Under realistic conditions, however, phase data reflect inhomogeneities caused by the transmit and receive processes, by the distribution of the static magnetic field and by local electromagnetic tissue properties, such as the magnetic susceptibility and chemical shifts.

Source: Medical Image Analysis - November 13, 2018 Category: Radiology Authors: J. Lindemeyer, A.-M. Oros-Peusquens, N.J. Shah Source Type: research