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Recently we proposed a reconstruction approach for gated cardiac images based on use of DFT basis functions, in which the temporal activity at each spatial location was regulated by a Fourier representation. In this work we further develop this approach in the context of single photon emission computed tomography (SPECT) which is often hampered by the increased noise due to gating. We will consider...
In cardiac imaging the data acquisition is often gated according to the ECG signal at the expense of signal to noise ratio in order to deal with cardiac motion. In this work, we propose a spatio-temporal reconstruction procedure by using a Fourier harmonic representation model for the temporal image activities. To further combat the increased imaging noise, we also include a spatial smoothing prior...
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