| Beta emitters and radiation protection. | |
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MedLine Citation:
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PMID: 18766999 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Beta emitters, such as (90)Y, are increasingly being used for cancer treatment. However, beta emitters demand other precautions than gamma emitters during preparation and administration, especially concerning shielding. AIM: To discuss practical precautions for handling beta emitters in general, and specifically determine proper shielding for (90)Y, while comparing to (177)Lu and (131)I. The aim is achieved through the application of physical principles combined with results from practical experience. MATERIAL AND METHODS: Typical and maximal electron ranges were calculated for (131)I, (177)Lu, and (90)Y, using data from a freely available database. Bremsstrahlung yields were calculated for (90)Y shielded by lead, aluminium, or perspex. Bremsstrahlung spectrum from (90)Y shielded by perspex was measured, and attenuation of spectrum by lead was calculated. Whole-body and finger doses to persons preparing (90)Y-Zevalin were measured. CONCLUSIONS: Good laboratory practice is important to keep radiation doses low. To reduce bremsstrahlung, (90)Y should not be shielded by lead but instead perspex (10 mm) or aluminium (5 mm). Bremsstrahlung radiation can be further reduced by adding a millimetre of lead on the outside of the primary shielding material. If suitable shielding is used and larger numbers of handlings are divided among several persons, then handling of beta emitters can be a safe procedure. |
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Authors:
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Lars Jødal |
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Publication Detail:
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Type: Comparative Study; Evaluation Studies; Journal Article |
Journal Detail:
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Title: Acta oncologica (Stockholm, Sweden) Volume: 48 ISSN: 1651-226X ISO Abbreviation: Acta Oncol Publication Date: 2009 |
Date Detail:
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Created Date: 2009-01-30 Completed Date: 2009-04-17 Revised Date: 2009-11-19 |
Medline Journal Info:
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Nlm Unique ID: 8709065 Medline TA: Acta Oncol Country: Norway |
Other Details:
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Languages: eng Pagination: 308-13 Citation Subset: IM |
Affiliation:
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Department of Nuclear Medicine, Aalborg Hospital, Aarhus University Hospital, Aalborg, Denmark. lajo@rn.dk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aluminum Beta Particles / adverse effects*, therapeutic use* Half-Life Humans Iodine Radioisotopes / therapeutic use Lead Lutetium / therapeutic use Polymethyl Methacrylate Radiation Monitoring Radiation Protection / methods* Radioisotopes / therapeutic use Specimen Handling Yttrium Radioisotopes / therapeutic use |
| Chemical | |
Reg. No./Substance:
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0/Iodine Radioisotopes; 0/Radioisotopes; 0/Yttrium Radioisotopes; 7429-90-5/Aluminum; 7439-92-1/Lead; 7439-94-3/Lutetium; 9011-14-7/Polymethyl Methacrylate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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