4D Velocity Measurements in an Intracranial Aneurysm Using 3T Phase Contrast Angiography

Pim van Ooij¹, Joppe J. Schneiders¹, Marieke E.S. Sprengers¹, Ed van Bavel², Aart J. Nederveen¹, Charles B.L.M. Majoie¹

4D velocity measurements using phase contrast angiography can be a useful tool to diagnose patients with neurovascular diseases. In this study velocity in an intracranial aneurysm is measured. The treatment of intracranial aneurysms is invasive and risky, so more knowledge on the factors that contribute to aneurysmal rupture is needed. In this study it is shown that when the aneurysm is large enough, clinically relevant velocity profiles can be measured using phase contrast angiography, which can serve as a validation of computational flow dynamics, or used as boundary conditions.