Image analysis – Applications – Biomedical applications
Reexamination Certificate
2008-12-26
2011-11-15
Mis, David (Department: 2817)
Image analysis
Applications
Biomedical applications
C382S128000, C250S363040
Reexamination Certificate
active
08059880
ABSTRACT:
In a state in which a subject is absent, blank data is collected by a self-radioactivity element typified by Lu-176 (S1). In a state in which the subject is present, transmission data is collected by the self-radioactivity element (S2). Emission data is collected by γ rays emitted from the subject injected with a radiopharmaceutical (S3). Absorption-corrected data is calculated based on the blank data and the transmission data (S4 to S7), and the emission data is absorption-corrected using the absorption-corrected data (S8). Although such background data obtained by the self-radioactivity is originally abandoned, the background data is rather used for the absorption-corrected data. Stable absorption correction can be thereby conducted.
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Knoess, Christof et al., “Development of a Daily Quality Check Procedure for the High-Resolution Research Tomograph (HRRT) Using Natural LSO Background Radioactivity”, IEEE Transactions on Nuclear Science, vol. 49, No. 5, Oct. 2002, pp. 2074-2078.
Yamamoto, Seiichi et al., “Investigation of single, random, and true counts from natural radioactivity in LSO-based clinical PET”, Annals of Nuclear Medicine, vol. 19, No. 2, 2005, pp. 109-114.
Goertzen, Andrew L. et al., “On the Imaging of Very Weak Sources in an LSO PET Scanner”, IEEE Nuclear Science Symposium Conference Record, 2006, pp. 2323-2327.
Kitamura Keishi
Mizuta Tetsuro
Cheng Law Group PLLC
Mis David
Shimadzu Corporation
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