A new method for calculating the distribution of radioactivity in man measured with a whole-body counter

Journal Article · Tue May 01 00:00:00 EDT 1990 · Health Physics; (USA)

DOI:https://doi.org/10.1097/00004032-199005000-00005· OSTI ID:7014204

Novario, R; Conte, L ^[1]

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1. Univ. of Milan (Italy)

A whole-body counter with a scanning bed and two opposite (antero-posterior) probes was used to obtain profiles of count rates of radioactivity held in the whole body. The distribution of the activity in the patient was calculated by solving an overdetermined system (more equations than unknowns) of linear equations with the Chebyshev method, the least-squares method, and an iterative method. The iterative method gave the best results, especially in the case of distributions with peaks of radioactivity. Some in-vivo applications of the method are presented.

• OSTI ID: 7014204
• Journal Information: Health Physics; (USA), Vol. 58:5; ISSN 0017-9078
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
RADIATION DOSE DISTRIBUTIONS
MATHEMATICAL MODELS
COMPARATIVE EVALUATIONS
PATIENTS
TECHNETIUM ISOTOPES
WHOLE-BODY COUNTERS
WHOLE-BODY COUNTING
COUNTING TECHNIQUES
ISOTOPES
MEASURING INSTRUMENTS
RADIATION DETECTORS
560151* - Radiation Effects on Animals- Man