This rest/stress ^99mTc-tetrofosmin SPECT study compares 2 acquisition methods. At top is a full-time acquisition reconstructed with ordered-subset expectation maximization without attenuation correction; at bottom is a half-time acquisition reconstructed with ordered-subset expectation maximization and resolution recovery with attenuation correction. No difference in image quality or clinical diagnosis was observed in 96% of cases between the 2 methods.
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