Evaluation of a bilinear model for attenuation correction using CT numbers generated from a parametric method. [artículo]
Por: Martínez Gómez, Luis Carlos [Radiofísica Hospitalaria]
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Colaborador(es): Servicio de Radiofísica Hospitalaria.
Tipo de material: 
LibroEditor: Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 2016Descripción: 107:77-86.Recursos en línea: Solicitar documento Resumen: A parametric model is used for the calculation of the CT number of some selected human tissues of known compositions (Hi) in two hybrid systems, one SPECT-CT and one PET-CT. Only one well characterized substance, not necessarily tissue-like, needs to be scanned with the protocol of interest. The linear attenuation coefficients of these tissues for some energies of interest (μ(i)) have been calculated from their tabulated compositions and the NIST databases. These coefficients have been compared with those calculated with the bilinear model from the CT number (μ(B)i). No relevant differences have been found for bones and lung. In the soft tissue region, the differences can be up to 5%. These discrepancies are attributed to the different chemical composition for the tissues assumed by both methods.
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Artículo
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Formato Vancouver:
Martinez LC, Calzado A. Evaluation of a bilinear model for attenuation correction using CT numbers generated from a parametric method. Appl Radiat Isot. 2016 Jan;107:77-86.
PMID: 26454019
Contiene 19 referencias
A parametric model is used for the calculation of the CT number of some selected human tissues of known compositions (Hi) in two hybrid systems, one SPECT-CT and one PET-CT. Only one well characterized substance, not necessarily tissue-like, needs to be scanned with the protocol of interest. The linear attenuation coefficients of these tissues for some energies of interest (μ(i)) have been calculated from their tabulated compositions and the NIST databases. These coefficients have been compared with those calculated with the bilinear model from the CT number (μ(B)i). No relevant differences have been found for bones and lung. In the soft tissue region, the differences can be up to 5%. These discrepancies are attributed to the different chemical composition for the tissues assumed by both methods.
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