Work

Exact Interior Reconstruction with Cone‐Beam CT

Year: 2007

Type: article

Abstract: Using the backprojection filtration (BPF) and filtered backprojection (FBP) approaches, respectively, we prove that with cone-beam CT the interior problem can be exactly solved by analytic continuation. The prior knowledge we assume is that a volume of interest (VOI) in an object to be reconstructed is known in a subregion of the VOI. Our derivations are based on the so-called generalized PI-segment (chord). The available projection onto convex set (POCS) algorithm and singular value decomposition (SVD) method can be applied to perform the exact interior reconstruction. These results have many implications in the CT field and can be extended to other tomographic modalities, such as SPECT/PET, MRI.

Source: International Journal of Biomedical Imaging

DOI: 10.1155/2007/10693

Authors: Yangbo Ye, Hengyong Yu, Ge Wang

Institutions: University of Iowa, Institute of Electrical and Electronics Engineers, Virginia Tech

Language: English

Topic: Medical Imaging Techniques and Applications

Subfield: Radiology, Nuclear Medicine and Imaging

Field: Medicine

Domain: Health Sciences

Open Access status: gold

Estimated APC paid: $1,000

Funders: National Institutes of Health, National Institute of Biomedical Imaging and Bioengineering