title: Indium-111 DTPA flow study to evaluate surgically implanted drug pump delivery system.
abstract: The authors describe a radionuclide technique for evaluating intrathecal and intraventricular infusions by surgically implanted drug pump delivery systems. Sixteen patients underwent flow studies, performed by injecting 500 mu Ci of indium-111 DTPA into the pumps. Early and delayed images were obtained. These studies enabled distinction among functioning pumps, nonfunctioning pumps, and obstructed or occluded catheters. We conclude that indium-111 DTPA flow studies provide an excellent way to assess these drug pump delivery systems.
authors.affiliation: Department of Diagnostic Radiology and Nuclear Medicine, Rush-Presbyterian-St. Luke's Hospital, Chicago, Illinois 60612.
authors.forename: A S
authors.initials: AS
authors.lastname: Rosenson
authors.forename: A
authors.initials: A
authors.lastname: Ali
authors.forename: E W
authors.initials: EW
authors.lastname: Fordham
authors.forename: R D
authors.initials: RD
authors.lastname: Penn
mesh_terms: D004868:Equipment Failure; D005069:Evaluation Studies as Topic; D006801:Humans; D007205:Indium Radioisotopes; D015918:Infusion Pumps, Implantable; D004369:Pentetic Acid
chemical_list: D007205:Indium Radioisotopes; D004369:Pentetic Acid