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Fig. 3 | Neurovascular Imaging

Fig. 3

From: Neurovascular 4DFlow MRI (Phase Contrast MRA): emerging clinical applications

Fig. 3

Source magnitude and phase slice taken from a 4D flow acquisition with velocity encoding as in Fig. 2. The subtraction of these phases results in images which are proportional to velocity. Post-processing tools generate a 4D velocity field which allows the extraction of features of the flow field such as wall shear stress, and flow rates, relative pressures and also enables visualization of complex velocity patterns

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