title: [Effectiveness of syringe shieldings using radionuclides in radiation synovectomy].
abstract: OBJECTIVE
  The radiation exposure in radiation synovectomy was investigated for technician and therapist using Erbium-169, Rhenium-186 and Yttrium-90 with and without syringe shieldings.
  
  
  METHODS
  Dose rates were measured in relation to the distance of the syringe containing the radionuclide. Measurements were repeated using syringe shieldings which consist of plastic surrounded by a lead layer.
  
  
  RESULTS
  The most relevant radiation exposure arises from Yttrium-90. Using syringe shieldings radiation exposure can be reduced by a factor of thousand.
  
  
  CONCLUSIONS
  This kind of radiological protection is completely sufficient for the therapist. Concerning the technician preparing the radiopharmaceutics, the limit of the official German dosimetry service (500 mSv) might be exceeded if no special radiological protection is established. Thus, special dosimetry is recommended.
authors.affiliation: Klinik und Poliklinik für Nuklearmedizin des Universitätsklinikums Bonn, Sigmund-Freud-Str. 25, 53105 Bonn. roland.roedel@ukb.uni-bonn.de
authors.forename: R
authors.initials: R
authors.lastname: Rödel
authors.forename: A
authors.initials: A
authors.lastname: Ebert
authors.forename: K
authors.initials: K
authors.lastname: Reichmann
authors.forename: M
authors.initials: M
authors.lastname: Reinhardt
authors.forename: H
authors.initials: H
authors.lastname: Palmedo
authors.forename: H-J
authors.initials: HJ
authors.lastname: Biersack
authors.forename: D
authors.initials: D
authors.lastname: von Mallek
mesh_terms: D006801:Humans; D016273:Occupational Exposure / Q000517:prevention & control; D010564:Personnel, Hospital; D011835:Radiation Protection / Q000295:instrumentation*; D016634:Radiosurgery / Q000379:methods; D000074402:Synovectomy; D013594:Syringes; D015021:Yttrium Radioisotopes
chemical_list: D015021:Yttrium Radioisotopes