Positron emission mammographic instrument: initial results.
basic_science · Level V
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- Record sourced from PubMed, PMID 10751499.
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Abstract
Performance characteristics of a positron emission mammographic (PEM) instrument were studied. This dedicated metabolic breast imaging system has spatial resolution of 2.8-mm full width at half maximum (FWHM), coincidence resolving time of 12-nsec FWHM, and absolute efficiency of 3%. Hot spots with diameter of 16 mm in a phantom with signal-to-background activity ratio of 6:1 were distinguishable with a scanning time of 5 minutes.
Medical subject headings
- Breast
- Tomography, Emission-Computed