Fig. 1From: Comprehensive SPECT/CT system characterization and calibration for 177Lu quantitative SPECT (QSPECT) with dead-time correction177Lu energy spectrum (normalized to the area under the curve) for sources in air (5.2 GBq), the Jaszczak phantom (4.1 GBq), and a patient (treated with 4.7 GBq 177Lu-octreotate). The energy windows and combinations thereof, described in Table 1, are also shownBack to article page