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EJNMMI Physics
Fig. 2 | EJNMMI Physics

Fig. 2

From: Optimizing acquisition times for total-body positron emission tomography/computed tomography with half-dose 18F-fluorodeoxyglucose in oncology patients

Fig. 2

Box plots for comparison of quantitative parameters in liver (a–d) and lesion (e–f) among groups. In general, the liver uptake and image noise decreased as the acquisition time increased, while the SNR of liver gradually increased. G15 served as control; there were no significant differences between G8 and G15 for any of these parameters (a–d). For lesions, SUVmax (e) was significantly lower on G15 images than on G3, G2, and G1 images, but did not differ significantly between G15 and G8 (p > 0.99) or between G15 and G5 (p = 0.35). The TBR (f) significantly differed between short-duration images and G15 images. SUV = standardized uptake value, SD = standard deviation, SNR = signal-to-noise ratio, COV = coefficient of variation, TBR = tumor-to-background ratio (*indicate p < 0.05; ns, not significant)

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