An analytical algorithm for skew-slit collimator SPECT with uniform attenuation correction.
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.
Tang
Qiulin
Q
Department of Physics, University of Utah, Salt Lake City, UT 84112, USA. tangql@physics.utah.edu
Zeng
Gengsheng L
GL
Huang
Qiu
Q
D000465:Algorithms; D055592:Biophysical Phenomena; D001703:Biophysics; D003198:Computer Simulation; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000706:statistics & numerical data; D019047:Phantoms, Imaging; D015899:Tomography, Emission-Computed, Single-Photon / Q000295:instrumentation* / Q000706:statistics & numerical data