Chapter 13: Image Reconstruction
13.2.1 Two dimensional tomography Eq. 13.1 describes the acquisition process in 2-D PET and in SPECT with parallel hole collimation, if attenuation can be ignored. Assuming that Λ(x, y) represents the tracer distribution at transaxial slice . Z. through the patient, then Y(s,ϕ) represents the corresponding sinogram, and contains the . z
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