Time-resolved 3D phase contrast MRA (4D flow MRA) is a technique providing morphological and quantitative 3D hemodynamic information of the blood vessel network without contrast agents and with a high temporal resolution. This study was performed to systematically validate flow measurements in peripheral vessels with high resolution, based on examinations in 4D flow phantom and in femoral vessels of healthy subjects. For this purpose, exams were run with varying spatial resolution and velocity encoding factors. It was shown, that the applied approach enables accurate and reproducible flow measurements by using venc factors of 120cm/s and isotrop spatial resolution of 1mm.
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