An analytical algorithm for skew-slit collimator SPECT with uniform attenuation correction

Phys Med Biol. 2006 Dec 7;51(23):6199-211. doi: 10.1088/0031-9155/51/23/018. Epub 2006 Nov 9.


To replace the conventional pinhole (normal cone-beam) collimator, a novel skew-slit collimator was previously proposed and a Novikov-type algorithm developed to reconstruct images using the skew-slit geometry. The goal of this paper is to develop a reconstruction algorithm that has better noise control than the Novikov-type algorithm. The new algorithm is able to compensate for uniform attenuation, and computer simulation results show that reconstructed images are less noisy.

Publication types

  • Comparative Study
  • Evaluation Study

MeSH terms

  • Algorithms*
  • Biophysical Phenomena
  • Biophysics
  • Computer Simulation
  • Humans
  • Image Processing, Computer-Assisted / statistics & numerical data
  • Phantoms, Imaging
  • Tomography, Emission-Computed, Single-Photon / instrumentation*
  • Tomography, Emission-Computed, Single-Photon / statistics & numerical data