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Single-Photon Emission Computed Tomography in the Year 2001: Instrumentation and Quality Control

Northwestern University Medical School, Chicago, Illinois, and Northwestern Memorial Hospital, Chicago, Illinois

View larger version (98K): [in a new window]   FIGURE 1. Posterior whole-body bone scan (right) obtained using a thick, slit crystal gamma camera system (DuetTM; Siemens Medical Systems), compared with the same scan (left) acquired on a conventional >-in gamma camera system (e.camTM; Siemens Medical Systems);.

View larger version (89K): [in a new window]   FIGURE 2. SPECT phantom acquisition (Data Spectrum Corp., Hillsborough, NC) with "cold" rod pies shown to the left and "cold" sphere to the right (all 6 visualized). The acquisition parameters were 128 x 128 matrix, 128 views, 1.23 Zoom, 3.9-mm pixel size, approximately 1 million counts per view, 128 million total counts using a dual-head camera (e.camTM; Siemens Medical Systems). This protocol represents a "super" high-resolution/count statistics acquisition.