What is inverse-geometry CT?

Approaches to Enhancing Radiation Safety in Cardiovascular Imaging

“…101 Current radiation exposure reduction efforts are focused on multiple areas, including new x-ray tube designs, better beam collimation, more efficient solid-state photon-counting detectors, novel photon-counting detectors, and more sophisticated iterative image-reconstruction algorithms. 102,103 It has been estimated that a combination of such methods may lead to a dose reduction of 80% from that possible with current scanners. 102 Optimization and standardization of CT protocols and robust dose index reporting in CT will further enhance the ability to manage radiation exposures in CT. 104 …”

State-of-the-art in CT hardware and scan modes for cardiovascular CT

“…48,49,50 Tomorrow’s cardiac CT scanner will undoubtedly enable improved image quality under more robust conditions, more imaging applications, and lower radiation doses. Even so, as evidenced in this survey of CT hardware in early 2012, the field has clearly made remarkable technical progress from the days of the dynamic spatial reconstructor and EBCT, enabling the continued growth of cardiovascular CT and expanding its diagnostic and prognostic benefits.…”

A Novel Static CT System: The Design of Triple Planes CT and Its Multi-Energy Simulation Results

“…Inverse-geometry computed tomography, or IGCT, is first proposed in 2004 [7]. Different from the conventional CT in which x-rays emit from a small source spot toward large detector arrays, the IGCT consists of multiple X-ray sources distributed in a large area and a smaller detector [8]. The IGCT system increases the sampling rate and reduces the cone-beam artifacts.…”