Title :
Capability evaluation of a sinogram error detection and correction method in computed tomography
Author :
Huang, Sung-Cheng ; Yu, Dan-Chu
Author_Institution :
Sch. of Med., California Univ., Los Angeles, CA, USA
Abstract :
An iterative method for detecting and correcting errors in sinograms is described and its capability is evaluated. The method is based on the use of a reconstruction-reprojection procedure to check the consistency of a sinogram. Adjustments of the sinogram are made iteratively to satisfy gradually the consistency requirement. The effectiveness of the method for detecting and correcting errors due to scanner detector problems is demonstrated with computer-simulated data and with real data from positron emission tomography. The potential usefulness of the method for quality control of scanners is discussed.<>
Keywords :
computerised tomography; image reconstruction; radioisotope scanning and imaging; iterative adjustments; positron emission tomography; reconstruction-reprojection procedure; scanner detector problems; scanner quality control; sinogram correction method; sinogram error detection; Computational modeling; Computed tomography; Computer errors; Computer simulation; Detectors; Error correction; Image reconstruction; Nuclear medicine; Positron emission tomography; Quality control;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1991., Conference Record of the 1991 IEEE
Conference_Location :
Santa Fe, NM, USA
Print_ISBN :
0-7803-0513-2
DOI :
10.1109/NSSMIC.1991.259280
