Magnetic resonance angiography (MRA) is a non-invasive vascular imaging technique. It can resolve the 3D morphology and structure of the circle of Willis when used in conjunction with three dimensional time-of-flight (3D TOF) and maximum intensity projection (MIP) technology. However, slow blood flow or saturation effects will cause signal loss in 3D TOF, and affect the accuracy of diagnosis. The balanced fast field echo (BFFE) technique employs a fully-balanced gradient waveform along all three axes, which allows magnetization to reach a steady state, providing fluids with good signal-to-noise ratios (SNRs) and excellent tissue contrast. Balanced fast field echo can then be used as diagnostic pulse sequence for blood vessels or fluid-filled tissues. Two case reports illustrate the value of BFFE-assisted 3D TOF to diagnose intracranial arterial stenosis.