Contrast cancellation technique applied to digital x-ray imaging using silicon strip detectors
Creators
- Avila, C.1, 2, 3, 4, 5, 6, 7, 8
- Lopez, J.1, 2, 3, 4, 5, 6, 7, 8
- Sanabria, J. C.1, 2, 3, 4, 5, 6, 7, 8
- Baldazzi, G.1, 2, 3, 4, 5, 6, 7, 8
- Bollini, D.1, 2, 3, 4, 5, 6, 7, 8
- Gombia, M.1, 2, 3, 4, 5, 6, 7, 8
- Cabal, A.E.1, 2, 3, 4, 5, 6, 7, 8
- Ceballos, C.1, 2, 3, 4, 5, 6, 7, 8
- Diaz Garcia, A.1, 2, 3, 4, 5, 6, 7, 8
- Gambaccini, M.1, 2, 3, 4, 5, 6, 7, 8
- Taibi, A.1, 2, 3, 4, 5, 6, 7, 8
- Sarnelli, A.1, 2, 3, 4, 5, 6, 7, 8
- Tuffanelli, A.1, 2, 3, 4, 5, 6, 7, 8
- Giubellino, P.1, 2, 3, 4, 5, 6, 7, 8
- Marzari-Chiesa, A.1, 2, 3, 4, 5, 6, 7, 8
- Prino, F.1, 2, 3, 4, 5, 6, 7, 8
- Tomassi, E.1, 2, 3, 4, 5, 6, 7, 8
- Grybos, P.1, 2, 3, 4, 5, 6, 7, 8
- Idzik, M.1, 2, 3, 4, 5, 6, 7, 8
- Swientek, K.1, 2, 3, 4, 5, 6, 7, 8
- and others
- 1. Dipartimento di Scienze e Tecnologie Avanzate dell'Universita del Piemonte Orientale and INFN, Alessandria (Italy)
- 2. CINVESTAV, Mexico City (Mexico)
- 3. Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Cracow (Poland)
- 4. Dipartimento di Fisica Sperimentale dell'Universita di Torino and INFN, Turin (Italy)
- 5. Dipartimento di Fisica dell'Universita di Ferrara and INFN, Ferrara (Italy)
- 6. CEADEN, Havana (Cuba)
- 7. Dipartimento di Fisica dell'Universita di Bologna and INFN, Bologna (Italy)
- 8. Departamento de Fisica, Universidad de Los Andes, Bogota (Colombia)
Description
Dual-energy mammographic imaging experimental tests have been performed using a compact dichromatic imaging system based on a conventional x-ray tube, a mosaic crystal, and a 384-strip silicon detector equipped with full-custom electronics with single photon counting capability. For simulating mammal tissue, a three-component phantom, made of Plexiglass, polyethylene, and water, has been used. Images have been collected with three different pairs of x-ray energies: 16-32 keV, 18-36 keV, and 20-40 keV. A Monte Carlo simulation of the experiment has also been carried out using the MCNP-4C transport code. The Alvarez-Macovski algorithm has been applied both to experimental and simulated data to remove the contrast between two of the phantom materials so as to enhance the visibility of the third one
Additional details
Identifiers
- DOI
- 10.1118/1.2126568;
Publishing Information
- Journal Title
- Medical Physics
- Journal Volume
- 32
- Journal Issue
- 12
- Journal Page Range
- p. 3755-3766
- ISSN
- 0094-2405
- CODEN
- MPHYA6
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 37038319
- Subject category
- S62: RADIOLOGY AND NUCLEAR MEDICINE; S61: RADIATION PROTECTION AND DOSIMETRY;
- Descriptors DEI
- ALGORITHMS; BIOMEDICAL RADIOGRAPHY; CANCELLATION; COMPUTERIZED SIMULATION; IMAGES; MAMMALS; MAMMARY GLANDS; MONTE CARLO METHOD; PHANTOMS; POLYETHYLENES; SI MICROSTRIP DETECTORS; SILICON; X RADIATION; X-RAY TUBES
- Descriptors DEC
- ANIMALS; BODY; CALCULATION METHODS; DIAGNOSTIC TECHNIQUES; ELECTROMAGNETIC RADIATION; ELECTRON TUBES; ELEMENTS; EQUIPMENT; GLANDS; IONIZING RADIATIONS; MATHEMATICAL LOGIC; MEASURING INSTRUMENTS; MEDICINE; MOCKUP; NUCLEAR MEDICINE; ORGANIC COMPOUNDS; ORGANIC POLYMERS; ORGANS; POLYMERS; POLYOLEFINS; RADIATION DETECTORS; RADIATIONS; RADIOLOGY; SEMICONDUCTOR DETECTORS; SEMIMETALS; SI SEMICONDUCTOR DETECTORS; SIMULATION; STRUCTURAL MODELS; VERTEBRATES; X-RAY EQUIPMENT
Optional Information
- Notes
- (c) 2005 American Association of Physicists in Medicine