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Fig. 1 | EJNMMI Physics

Fig. 1

From: Simultaneous 166Ho/99mTc dual-isotope SPECT with Monte Carlo-based downscatter correction for automatic liver dosimetry in radioembolization

Fig. 1

166Ho-only spectrum of a patient scan (dashed green line), dual-isotope spectrum of the same patient after administration of 99mTc (solid red line), difference between the two spectra, representing 99mTc only (dotted blue line). Recorded energy windows are shaded. Both isotopes contribute a significant amount of scatter to one another’s photopeak window

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