Computational modeling of laser thrombolysis for stroke treatment

摘要

Many aspects of the physical process involved in a pulsed laser interacting with an occlusion in the intra-cranial vascular system are included in the simulation codes LATIS and LATIS3d. Laser light propagation and thermomechanical effects on the occlusion can be calculated by these codes. The hydrodynamic response uses a realistic equation of state which included melting and evaporation. Simple material strength and failure models now included in these codes are required to describe clot breakup. The goal is to ascertain the feasibility of laser thrombolysis, and to help optimize the laser parameters for such therapy. In this paper detailed numerical results for laser interaction with water is considered as an initial model for laser thrombolysis of soft blood clots which have high water content.