title: Radionuclide-anesthetic flow study: a new technique for the study of regional anesthesia.
abstract: A new technique to study the dynamics of in vivo distribution of regional anesthetics is described. Five hundred microcuries of technetium-99m diethylenetriaminepentaacetic acid (DTPA) added to the anesthetic in a syringe prior to injection allows both dynamic and static imaging to assess the initial distribution of the injected anesthetic. Superimposed bone scans or transmission scans help delineate anatomy. The radionuclide-anesthetic flow study is a simple, safe technique to investigate both the spread of regional anesthetics and the factors that affect it.
mesh_terms: D000765:Anesthesia, Conduction / Q000379:methods*; D000779:Anesthetics, Local / Q000378:metabolism*; D006801:Humans; D004369:Pentetic Acid; D011868:Radioisotopes; D013667:Technetium; D016284:Technetium Tc 99m Pentetate
chemical_list: D000779:Anesthetics, Local; D011868:Radioisotopes; D013667:Technetium; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate