Reconstruction algorithm for single circular orbit cone beam scans

摘要: With the recent introduction of multi-slice CT (MCT) many reconstruction algorithms have been proposed. These take advantage available conjugate samples in configuration and estimate a set projections at predefined plane-of-reconstruction (POR). In clinical applications, however, step-and-shoot scan mode becomes increasingly important. For these data acquisition is inherently incomplete due to single circular source trajectory. addition, volume limited smallest regions inside commonly irradiated volume. this paper, we present scheme that allows reconstructed increase axial extent cone beam geometry iso-center. typical scanning geometry, nearly doubles coverage.