I am excited to present our work at the 75th APS DFD annual meeting in Indianapolis! We have demonstrated how to quantify particle residence time and blood damage in an intracranial aneurysm using 3D time-resolved particle tracking. We have also looked at the effects of inflow pulsatility on the blood residence time in the aneurysm. This work can help evaluate the efficacy of the treatment for brain aneurysms using flow diversion stents. It opens the possibility to directly quantify blood damage in other medical devices using 3D flow measurement techniques.