Positron Emission Mammographic Instrument: Initial Results
- Resource Type
- Authors
- K. Murthy; A.M. Bergman; Robert Lisbona; Marianne C. Aznar; J.L. Robar; A. Loutfi; C.J. Thompson; Jean H. Gagnon
- Source
- Radiology. 215:280-285
- Subject
- Adult
Time Factors
Breast imaging
Breast Neoplasms
Efficiency
Imaging phantom
Optics
Positron
Fluorodeoxyglucose F18
Image Processing, Computer-Assisted
medicine
Humans
Mammography
Radiology, Nuclear Medicine and imaging
Breast
Positron emission
Image resolution
Aged
medicine.diagnostic_test
Phantoms, Imaging
business.industry
Equipment Design
Middle Aged
Image Enhancement
Radiographic Image Enhancement
Full width at half maximum
Positron emission tomography
Female
Radiopharmaceuticals
business
Nuclear medicine
Algorithms
Software
Tomography, Emission-Computed
- Language
- ISSN
- 1527-1315
0033-8419
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.