Title :
Capability evaluation of a sinogram error detection and correction method in computed tomography
Author :
Huang, Sung-Cheng ; Yu, Dan-Chu
Author_Institution :
Dept. of Radiol. Sci., Sch. of Med., California Univ., Los Angeles, CA, USA
fDate :
8/1/1992 12:00:00 AM
Abstract :
An iterative method for detecting and correcting errors in sinograms is described and its capability 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 position emission tomography. The potential usefulness of the method for quality control of scanners is discussed
Keywords :
computerised tomography; error correction; error detection; iterative methods; quality control; radioisotope scanning and imaging; capability; computed tomography; computer simulated data; consistency requirement; correction method; iterative method; position emission tomography; quality control; reconstruction-reprojection procedure; scanner detector problems; sinogram error detection; Computational modeling; Computed tomography; Computer errors; Computer simulation; Detectors; Error correction; Image reconstruction; Nuclear medicine; Positron emission tomography; Quality control;
Journal_Title :
Nuclear Science, IEEE Transactions on
