Feasibility and Initial Performance of Simultaneous SPECT-CT Imaging Using a Commercial Multi-Modality Preclinical Imaging System

Figure 7

SPECT projections of a point source using a 5-pinhole tungsten collimator. (a) 30–300 keV energy window and no X-rays present, (b) 30–300 keV energy window and X-ray source on 80 kVp, (c) 110–134 keV energy window and X-ray source on 80 kVp, and (d) 110–134 keV energy window and X-ray source on 70 kVp.

(a)

(b)

(c)

(d)