A Comparison of the Uniformity Requirements for SPECT Image Reconstruction using FBP and OSEM Techniques
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A comparison of the uniformity requirements for SPECT image reconstruction using FBP and OSEM techniques.
OBJECTIVE Gamma camera nonuniformity can result in the presence of ring artifacts in reconstructed SPECT images. The objective of this study is to compare the relationship between ring artifact magnitude and image noise in tomographic images reconstructed using FBP and OSEM. METHODS A cylindrical phantom was filled with water and (99m)TC: Seven tomographic acquisitions were performed, with to...
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تاریخ انتشار 1999