title: PET probe-guided surgery.
abstract: Intraoperative localization of PET-positive recurrent/metastatic lesions can be facilitated using a hand-held PET probe. PET probe is a high-energy gamma probe designed to process the 511 keV photons of PET tracers. Intraoperative gamma probe performance is a function of radiopharmaceutical uptake, clearance kinetics, and probe engineering, all determining the target to background ratio (TBR) and detection threshold. A minimum TBR of 1.5:1 is needed in the operative field for the operating surgeon to be comfortable the differences between tumor tissue and normal adjacent tissue are real. Due to high-energy photon fluxes, achieving a satisfactory TBR intraoperatively is challenging and requires development of a clinically feasible PET-probe guided surgery protocol.
authors.affiliation: Center for Cancer Care, Goshen Health System, Goshen, IN, USA. sgulec@goshenhealth.com
authors.forename: Seza A
authors.initials: SA
authors.lastname: Gulec
mesh_terms: D002986:Clinical Trials as Topic; D019788:Fluorodeoxyglucose F18; D015902:Gamma Cameras; D006801:Humans; D007457:Iodine Radioisotopes; D009369:Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D049268:Positron-Emission Tomography; D016719:Radioimmunodetection; D019275:Radiopharmaceuticals; D012680:Sensitivity and Specificity; D025321:Surgery, Computer-Assisted
chemical_list: D007457:Iodine Radioisotopes; D019275:Radiopharmaceuticals; D019788:Fluorodeoxyglucose F18