Key result
Time-resolved phase contrast imaging allows for accurate analysis of 3D blood flow characteristics, though clinical adoption is hampered by long scan durations.
Lowering the encoding velocity with subsequent phase unwrapping is a feasible method to improve velocity-to-noise ratio in time-resolved 3D phase contrast MRI.
May enhance velocity-to-noise ratio in 3D flow MRI; leaves open whether scan times shorten enough for clinical adoption.
Time-resolved phase contrast (PC) imaging permits the assessment of volumetric, multi-directional blood flow velocities [ 1 ]. The resulting vector field data can be visualized in different ways using streamlines, arrows, and particle traces [ 2 ]. These visualization modes allow for an accurate and intuitive analysis of blood flow characteristics in normal and pathological cases [ 3 ]. Despite the advantages of the method, wide-spread acceptance in a clinical setting has been hampered by the long scan durations.
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Spiczak et al. (2008) studied Blood flow characteristics. Time-resolved phase contrast (PC) imaging was evaluated. Time-resolved phase contrast imaging allows for accurate analysis of 3D blood flow characteristics, though clinical adoption is hampered by long scan durations.
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