A fast algorithm to calculate the exact radiological

Filip Jacobs was born in Wilrijk (Belgium) in 1970. He graduated in electrical engineering at the University of Ghent in 1994, and obtained a degree in biomedical and clinical engineering techniques in 1996 from the same university. Currently, he's working as a Ph.D. student at the Ignace Lemahieu was born in Varsenare (Belgium) in 1961. He graduated in physics at the University of Ghent in 1983, and obtained his doctoral degree in physics in 1988 from the same university. He is now a professor of Medical Image Processing and head of the MEDISIP research group at the at the ELIS department of University of Ghent. Abstract Calculating the exact radiological path through a pixel or voxel space is a frequently encountered problem in medical image reconstruction from projections and greatly innu-ences the reconstruction time. Currently, one of the fastest algorithms designed for this purpose was published in 1985 by Robert L. Siddon 1]. In this paper, we propose an improved version of Siddon's algorithm, resulting in a considerable speedup.