RT Journal Article SR Electronic T1 Technologic (R)Evolution Leads to Detection of More Sentinel Nodes in Patients with Melanoma in the Head and Neck Region JF Journal of Nuclear Medicine JO J Nucl Med FD Society of Nuclear Medicine SP 1357 OP 1362 DO 10.2967/jnumed.120.246819 VO 62 IS 10 A1 Berger, Danique M.S. A1 van den Berg, Nynke S. A1 van der Noort, Vincent A1 van der Hiel, Bernies A1 Valdés Olmos, Renato A. A1 Buckle, Tessa A. A1 KleinJan, Gijs H. A1 Brouwer, Oscar R. A1 Vermeeren, Lenka A1 Karakullukçu, Baris A1 van den Brekel, Michiel W.M. A1 van de Wiel, Bart A. A1 Nieweg, Omgo E. A1 Balm, Alfons J.M. A1 van Leeuwen, Fijs W.B. A1 Klop, W. Martin C. YR 2021 UL http://jnm.snmjournals.org/content/62/10/1357.abstract AB Sentinel lymph node (SN) biopsy (SNB) has proven to be a valuable tool for staging melanoma patients. Since its introduction in the early 1990s, this procedure has undergone several technologic refinements, including the introduction of SPECT/CT, as well as radioguidance and fluorescence guidance. The purpose of the current study was to evaluate the effect of this technologic evolution on SNB in the head and neck region. The primary endpoint was the false-negative (FN) rate. Secondary endpoints were number of harvested SNs, overall operation time, operation time per harvested SN, and postoperative complications. Methods: A retrospective database was queried for cutaneous head and neck melanoma patients who underwent SNB at The Netherlands Cancer Institute between 1993 and 2016. The implementation of new detection techniques was divided into 4 groups: 1993–2005, with preoperative lymphoscintigraphy and intraoperative use of both a γ-ray detection probe and patent blue (n = 30); 2006–2007, with addition of preoperative road maps based on SPECT/CT (n = 15); 2008–2009, with intraoperative use of a portable γ-camera (n = 40); and 2010–2016, with addition of near-infrared fluorescence guidance (n = 192). Results: In total, 277 patients were included. At least 1 SN was identified in all patients. A tumor-positive SN was found in 59 patients (21.3%): 10 in group 1 (33.3%), 3 in group 2 (20.0%), 6 in group 3 (15.0%), and 40 in group 4 (20.8%). Regional recurrences in patients with tumor-negative SNs resulted in an overall FN rate of 11.9% (group 1, 16.7%; group 2, 0%; group 3, 14.3%; group 4, 11.1%). The number of harvested nodes increased with advancing technologies (P = 0.003), whereas Breslow thickness and operation time per harvested SN decreased (P = 0.003 and P = 0.017, respectively). There was no significant difference in percentage of tumor-positive SNs, overall operation time, and complication rate between the different groups. Conclusion: The use of advanced detection technologies led to a higher number of identified SNs without an increase in overall operation time, possibly indicating an improved surgical efficiency. Operation time per harvested SN decreased; the average FN rate remained 11.9% and was unchanged over 23 y. There was no significant change in postoperative complication rate.