[Use of Fluid Imaging in Endovascular Neurotherapy]

Recently, neuroendovascular surgery has increased; however, it is impossible to observe aneurysm wall conditions, such as thinning and rupture sites, unlike neck clipping. Computational fluid dynamics (CFD) is a useful tool in endovascular surgery for predicting danger zones in cerebral aneurysms. Moreover, its risk of recurrence is challenging compared with open surgery, especially coil compaction, leading to recanalization and the risk of aneurysm rupture. De novo neck formation in coiled aneurysms has been reported over a long follow-up period. Abnormal hemodynamic stress is associated with the recurrence of treated aneurysms. Here, we introduce CFD analysis as a useful tool for neurosurgeons performing hemodynamic imaging in representative cases.