Perfusão por tomografia computadorizada do abdome: aplicações clínicas, princípios e técnica do exame
New imaging techniques have been developed with the objective of obtaining not only a structural assessment, but also a metabolic and functional analysis of different organs and types of lesions. Among such tools perfusion computed tomography (PCT) has recently aroused the interest of many researche...
| Autores: | , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | Brasil |
| Institución: | Universidade Federal de São Paulo (UNIFESP) |
| Repositorio: | Repositório Institucional da UNIFESP |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.unifesp.br:11600/6968 |
| Acceso en línea: | http://dx.doi.org/10.1590/S0100-39842012000100010 http://repositorio.unifesp.br/handle/11600/6968 |
| Access Level: | acceso abierto |
| Palabra clave: | Perfusion Computed tomography Biomarkers Angiogenesis Neoplasm Contrast media Perfusão Tomografia computadorizada Biomarcadores Angiogênese Neoplasia Meios de contraste |
| Sumario: | New imaging techniques have been developed with the objective of obtaining not only a structural assessment, but also a metabolic and functional analysis of different organs and types of lesions. Among such tools perfusion computed tomography (PCT) has recently aroused the interest of many researchers in studying the applicability of such imaging modality in the evaluation of abdominal organs and diseases. Analysis of the biological behavior of healthy and diseased tissues, differentiation of inflammatory processes from tumors, and diagnosis of tumor recurrence after minimally invasive therapies can be mentioned as applications of such an imaging modality. The main features of PCT are related to its ability to characterize different perfusional behaviors reflecting biological changes of certain lesions and diseased tissues. Thus, the present study was aimed at carrying out a comprehensive literature review, describing the key techniques and protocols utilized in PCT imaging, main clinical applications, advantages and disadvantages of the method, besides proposing an imaging protocol that can be adopted by both private and public health services, with good reproducibility and easy implementation. |
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