RESUMEN
Based on the half sphere-cylinder myocardial model, a quantitative calculating method of gated SPECT myocardial infraction of the left ventricular functional parameters is proposed. To overcome the shortage of the ellipse model and other normal methods, this method uses the half sphere-cylinder myocardial model and its subarea. The experiment result shows that the data from normal men accord very well with those reported in domestic and international literature. The result from use in the case of left ventricular myocardial infarction is also satisfactory. Therefore, this method is of high value clinically.
Asunto(s)
Humanos , Masculino , Enfermedad de la Arteria Coronaria , Diagnóstico por Imagen , Imagen de Acumulación Sanguínea de Compuerta , Métodos , Ventrículos Cardíacos , Diagnóstico por Imagen , Interpretación de Imagen Asistida por Computador , Modelos Cardiovasculares , Tecnecio Tc 99m Sestamibi , Tomografía Computarizada de Emisión de Fotón Único , Métodos , Función Ventricular IzquierdaRESUMEN
OBJECTIVE To monitor the distrubution and the change in drug resistance of pathogenic bacteria from lower respiratory tract in patients with comprehensive intensive care to use the antibiotic properly in the clinics.METHODS All lower respiratory infection cases admited to the ICU in 2005-2006 were reviewed,and the distribution of pathogenic bactieria and their drug resistance profile were analyzed.RESULTS 89.3% pathogenic bacteria were Gram-negative ones,among them Pseudomonas aeruginosa(47.6%) and Klebsiella pneumoniae(21.2%) were prevailed.Staphylococcus aureus(6.2%) was the most prominent Gram-positive bacteria,MRSA showed increasing trend.Fungi accounted for 5.8%.All pathogenic bacteria showed high resistance to the antibiotics.CONCLUSIONS The pathogenic bacteria and their resistance to the antibiotics are highly changed at ICU.Intensive observations from the clinicians are recommanded so as to make the antibiotics effective.