Figure 7: Screenshots from the Freehand SPECT application in different surgical workflow steps and in different visualization modes. Blue arrows indicate the injection spot, green arrows show the SLN conglomerate. (a) Pre-incision reconstruction in AR view. (b) Precision reconstruction in AR view with different threshold parameters. (c)-(d) Pre-incision reconstruction in VR mode for 3D navigation. (e) Post-excision reconstruction with no threshold showing homogeneous activity in the scanned area in AR view. (f) Threshold post-excision reconstruction showing no major hot spot in the region of interest in AR view.