- Scatter Correction: Estimates
Compton events in the Photopeak Window and eliminates
them.
- Attenuation Correction: Estimates the amount of
radiation attenuated by human tissue and compensates for "lost"
gamma rays that would otherwise have shown up in the Photopeak Window
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- SFI: Scatter Free Imaging, rejects Compton events by extrapolating the Compton distribution from low to high energy. Thus the estimate of Compton events in the photopeak energy window is removed
- Attenuation Correction is performed with an external source. The attenuation contribution of every voxel (volume unit) is estimated. Thus, we correct for the effect of attenuation for every distribution of sources inside the patient
- If the media is uniform (e.g. brain region) one can mathematically correct for attenuation without measuring it
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Thank you to Dr. Jonathan Links for being a partner in the creation
of the "Intro to Nuclear Medicine" presentation.
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