The monitoring of the radioactive xenon isotopes (131m)Xe, (133)Xe, (133m)Xe, and (135)Xe is important for the detection of nuclear explosions. While backgrounds of the xenon isotopes are short-lived, they are constantly replenished from activities dominated by the fission-based production of (99)Mo used for medical procedures. At present, one of the most critical locations on earth for the monitoring of nuclear explosions is the Korean peninsula where the Democratic People's Republic of Korea (DPRK) has announced that it conducted three nuclear tests between 2006 and 2013. This paper explores the backgrounds that would be caused by the medium to large scale production of (99)Mo in the region of the Korean peninsula.
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| http://dx.doi.org/10.1016/j.jenvrad.2013.11.012 | DOI Listing |
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Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Department of Internal Medicine, University of Missouri, 1 Hospital Drive, Columbia, MO 65212, USA. Electronic address:
Hyperpolarized Xenon MRI (HPG MRI) has been studied for its potential use in assessing lung function in patients with cystic fibrosis (CF) and in patients with asthma. We present a case of a man with overlapping cystic fibrosis and allergic asthma with severe obstructive lung disease in which spirometry and computed topography (CT) imaging was unable to determine the primary cause for his uncontrolled symptoms. HPG MRI was used to guide a tissue biopsy and determine the primary driver to be allergic asthma.
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Center for Pulmonary Imaging Research, Division of Pulmonary Medicine, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA.
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- Hyperpolarized xenon-129 (Xe) is a specialized MRI contrast agent that helps measure various aspects of lung function, making it useful for diagnosing and tracking lung diseases in humans.
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Mapping the amplitude and phase of dissolved Xe red blood cell signal oscillations with keyhole spectroscopic lung imaging.
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POLARIS, Section of Medical Imaging and Technologies, Division of Clinical Medicine, School of Medicine and Population Health, University of Sheffield, Sheffield, UK.
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