To assure that no further SLN is remaining in the scanned area, a comparison of the post-excision scan with the pre-incision image can be done. By checking the hot spots shown in the pre-incision image with the post-excision image and the acoustic sound of the gamma probe in real-time, the surgical team can be sure that there is no remaining hot spot in the region of interest. In the 48 post excision a scan we analyzed, this functionality is used only in 29 cases (60.4%), whereas it is waived in 13 cases (27.1%). Unfortunately, in 6 of 48 cases, the pre-incision image was not available during the post-excision usage (12.5%). Furthermore, in 27 of the remaining 29 cases, the comparison is done in the AR mode (93.1%, 56.3% of total), while in one case only the VR mode (3.5%, 2.1% of total) and in one case both modes were utilized (3.5%, 2.2% of total).