Fig. 9From: In vivo gadolinium nanoparticle quantification with SPECT/CTActivity from SPECT images in in vivo and in ex vivo studies (tumors). The image-based activity measurements on tumors for uncorrected images (black) and after attenuation correction (red). From left to right: (1) on in vivo in the red VOI of Fig. 2; (2) on in vivo in the green VOI of Figure 2; (3) on ex vivoBack to article page