Title :
Comments on "A cone-beam filtered backprojection reconstruction algorithm for cardiac single photon emission computed tomography" by G. T. Gullberg and G. L. Zeng
Author :
Wang, G. ; Lin, T.H.
Author_Institution :
Dept. of Electr. & Comput. Eng., State Univ. of New York, Buffalo, NY, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
In the above-titled work by G. T. Gullberg and G. L. Zeng (ibid., vol.11, no.1, p.91-101, 1992), a fan-beam reconstruction formula of a noncircular scanning locus was derived and extended for half-scan cone-beam reconstruction. However, the reconstruction formula is not exact mathematically unless a necessary condition is satisfied. In this correspondence, the commenters derive this necessary condition and provide a geometrical explanation of the condition.<>
Keywords :
cardiology; computerised tomography; image reconstruction; radioisotope scanning and imaging; cardiac single photon emission computed tomography; cone-beam filtered backprojection reconstruction algorithm; fan-beam reconstruction formula; medical diagnostic imaging; noncircular scanning locus; nuclear medicine; Biomedical imaging; Diagnostic radiography; Hardware; Image quality; Image reconstruction; Jacobian matrices; Optical computing; Reconstruction algorithms; Single photon emission computed tomography; Supercomputers;
Journal_Title :
Medical Imaging, IEEE Transactions on
