Fig. 1.

(a) An image of the laser and imaging system used for IVPA imaging, including the laser, optics, and computational hardware. (b) An image of components of the imaging system kept at the side of the operating table. The components include linear and rotational motors, a pumping system for injection of heavy water, and the catheter, which is extending to the bed at the right of the image. (c) Image of one of the carotid arteries after tissue dissection. The vessel has been ligated on the inferior (left) side to isolate the artery after catheter introduction (right). Two metal clips are attached to the artery for registration of fluoroscopy images.