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A study to improve the image quality in low-dose computed tomography (SPECT) using filtration
BACKGROUND: The output of the X-ray tube used in computed tomography (CT) provides a spectrum of photon energies. Low-energy photons are preferentially absorbed in tissue; the beam spectrum shifts toward the higher energy end as it passes through more tissue, thereby changing its effective attenuati...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medknow Publications
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180715/ https://www.ncbi.nlm.nih.gov/pubmed/21969774 http://dx.doi.org/10.4103/0972-3919.84595 |