title: Sentinel node detection in an animal study: evaluation of a new portable gamma camera.
abstract: We tested the capacity of a newly developed portable gamma camera to precisely locate sentinel nodes by injecting a radiotracer. Two sets of experiments were performed on eight pigs under general anesthesia. 99mTc-Nanocolloid and dye complex was injected in the submuscular layer of the small bowel in the first set and subcutaneously in the knee region in the second set of experiments. Image acquisition of the sentinel nodes was performed with the Camera placed at various angles. A mosaic of images was obtained encompassing the injection sites, lymphatic pathways, and sentinel lymph nodes. Three-dimensional visualizations were obtained, allowing the precise location and complete excision of these nodes. The use of the portable gamma camera allowed the rapid visualization of the lymphatic pathways leading from the injection sites to the sentinel nodes and precise location of these nodes. The Camera was also useful to verify the complete removal of the labeled target tissues.
authors.affiliation: Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel. kopelmand@bezeqint.net
authors.forename: Doron
authors.initials: D
authors.lastname: Kopelman
authors.forename: Ira
authors.initials: I
authors.lastname: Blevis
authors.forename: Galina
authors.initials: G
authors.lastname: Iosilevsky
authors.forename: Ossama A
authors.initials: OA
authors.lastname: Hatoum
authors.forename: Assaf
authors.initials: A
authors.lastname: Zaretzki
authors.forename: Rona
authors.initials: R
authors.lastname: Shofti
authors.forename: Tal
authors.initials: T
authors.lastname: Salmon
authors.forename: Ora
authors.initials: O
authors.lastname: Israel
authors.forename: Moshe
authors.initials: M
authors.lastname: Hashmonai
mesh_terms: D000818:Animals; D015902:Gamma Cameras; D021621:Imaging, Three-Dimensional; D008198:Lymph Nodes / Q000000981:diagnostic imaging*; D008207:Lymphatic Metastasis / Q000000981:diagnostic imaging*; D008297:Male; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D021701:Sentinel Lymph Node Biopsy / Q000295:instrumentation*; D013552:Swine; D013667:Technetium
chemical_list: D019275:Radiopharmaceuticals; D013667:Technetium