RESUMO
Stress and rest myocardial perfusion imaging using computed tomography (CT) can be accurately and safely performed. CT angiography allows for the anatomic visualization of coronary lesions and the components of atherosclerotic plaque, whereas according to currently available data, CT perfusion imaging improves the diagnostic accuracy for detecting ischemic lesions. However, the radiation exposure and contrast load that are involved cannot be neglected. Owing to the limited number of trials that have been published so far, and the fact that they used a wide variety of image acquisition and stress protocols, a standard acquisition protocol for CT perfusion imaging still needs to be found and evaluated in larger multicenter trials. Therefore, CT perfusion imaging, as opposed to other modalities such as magnetic resonance perfusion, SPECT, or positron emission tomography, cannot yet be regarded as clinical routine, but may be considered in patients with contraindications for other imaging modalities.
Assuntos
Angiografia Coronária/métodos , Doença da Artéria Coronariana/diagnóstico por imagem , Doença da Artéria Coronariana/cirurgia , Isquemia Miocárdica/diagnóstico por imagem , Isquemia Miocárdica/cirurgia , Revascularização Miocárdica/métodos , Tomografia Computadorizada por Raios X/métodos , Doença Crônica , Angiografia Coronária/tendências , Doença da Artéria Coronariana/complicações , Humanos , Isquemia Miocárdica/etiologia , PrognósticoRESUMO
The analysis of the abdominal skin on cadavers has made it possible for the authors to evaluate the skin's regional characteristics, taking into consideration the age group to be lipoaspirated regardless of race or sex. In this way, norms are established which in the future may be used to comparatively analyze results related to the cutaneous retraction after plastic surgery lipoaspiration.