Patent Number: 6,298,110

Title: Cone beam volume CT angiography imaging system and method

Abstract: Only a single IV contrast injection with a short breathhold by the patient is needed for use with a volume CT scanner which uses a cone-beam x-ray source and a 2-D detector for fast volume scanning in order to provide true 3-D descriptions of vascular anatomy with more than 0.5 lp/mm isotropic resolution in the x, y and z directions is utilized in which one set of cone-beam projections is acquired while rotating the x-ray tube and detector on the CT gantry and then another set of projections is acquired while tilting the gantry by a small angle. The projection data is preweighted, partial derivatives are calculated and rebinned for both the circular orbit and arc orbit data The second partial derivative is then calculated and then the reconstructed 3-D images are obtained by backprojecting using the inverse Radon transform.

Inventors: Ning; Ruola (Penfield, NY)

Assignee: University of Rochester

International Classification: A61B 6/03 (20060101); A61B 006/03 ()

Expiration Date: 10/02/2018