Xenon-133
Last revised by Andrew Murphy on 3 Apr 2020
Citation, DOI, disclosures and article data
Citation:
Jones J, Anderson T, Bell D, et al. Xenon-133. Reference article, Radiopaedia.org (Accessed on 03 Oct 2024) https://doi.org/10.53347/rID-12395
Permalink:
rID:
12395
Article created:
19 Nov 2010,
Jeremy Jones ◉
Disclosures:
At the time the article was created Jeremy Jones had no recorded disclosures.
View Jeremy Jones's current disclosures
Last revised:
3 Apr 2020,
Andrew Murphy ◉
Disclosures:
At the time the article was last revised Andrew Murphy had no recorded disclosures.
View Andrew Murphy's current disclosures
Revisions:
6 times, by
6 contributors -
see full revision history and disclosures
Systems:
Xenon-133 is a radiopharmaceutical principally used when a performing VQ scan. Inhalation of this gas can also be used to assess cerebral blood flow.
- Mode of decay: Beta decay
- photon energy: 81 KeV
- physical half-life: 5.27 days
- biological half-life: 30 seconds
- normal distribution: lungs
- <15% of inhaled gas is absorbed
- excretion: lungs
- target organ: lungs
Xenon-133 is a fission product from uranium-235. The gas is normally supplied in a concentration of 5% with 95% carbon dioxide.
Uses, dosages, and time of imaging
V/Q scan: ventilation agent
- dose: 370-740 MBq (10-20 mCi) inhaled
- time of imaging: immediate
References
- 1. Stein MG, Waxman AD, Ramanna L et-al. Postperfusion xenon-133 ventilation scintigraphy with a narrow window. AJR Am J Roentgenol. 1985;145 (3): 511-5. AJR Am J Roentgenol (abstract) - Pubmed citation
- 2. Weissleder R, Wittenberg J, Harisinghani MMGH et-al. Primer of Diagnostic Imaging. Mosby. (2011) ISBN:0323065384. Read it at Google Books - Find it at Amazon
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