%0 Journal Article
%T Presencia de enfermedad coronaria obstructiva en pacientes con SPECT negativo sometidos a coronariograf赤a por tom車grafo de 64 canales Obstructive coronary artery disease in patients with negative SPECT undergoing coronary angiography with a 64-slice CT angiogram
%A C谷sar Parra B
%A Fabricio Sasia T
%A Lucrecia Burgos E
%A Leandro Lasave E
%J Revista Chilena de Radiolog赤a
%D 2011
%I Publimpacto
%X Objetivo. Evaluar la presencia de enfermedad coronaria obstructiva (ECO) en pacientes con SPECT negativo sometidos a Coronariograf赤a TC64. Material y m谷todos. Se evaluaron pacientes sometidos a coronariograf赤a TC con SPECT negativo desde julio 2007 a enero 2010.Se utiliz車 un tom車grafo Philips Brilliance 64 y contraste iodado de baja osmolaridad. Las arterias coronarias se dividieron en 16 segmentos evaluando la presencia de ECO (lesi車n > 50%), enfermedad coronaria no obstructiva (lesi車n < 50%) o sin enfermedad coronaria. Resultados. Del total de 447 pacientes, se incluyeron 52 pacientes con SPECT negativo. La edad media fue 60 a os, 67% mujeres. Se observaron 13 pacientes (25 %) con ECO. Las afecciones arteriales fueron: arteria descendente anterior en el 92%, coronaria derecha 53,8%, circunfleja 46,1%, lateroventricular 23%,descendente posterior 15,3%,diagonal 7,7% y ninguna en el tronco coronario izquierdo. Conclusi車n. Seg迆n nuestra serie, el 25% de los pacientes con SPECT negativo present車 lesiones obstructivas significativas. Objective. To evaluate the presence of obstructive coronary artery disease (OCD) in patients with negative SPECT undergoing 64-slice coronary CT angiography. Material and methods. From July 2007 to January 2010, patients with negative SPECT undergoing CT angiography were assessed. We used a Philips Brilliance 64-slice CT scanner and low osmolality iodinated contrast. Coronary arteries were divided into 16 segments and the presence of OCD (lesion> 50%), non-obstructive coronary disease (lesions <50%), or absence of coronary disease were evaluated. Results. From a population of 447 patients undergoing coronary angiography, 52 patients with negative SPECT were included in the study. The mean age was 60 years, and 67% corresponded to female patients. We observed 13 patients (25%) with OCD. Percentages of arterial anomalies were as follows: 92%, anterior descending artery; 53.8%, right coronary artery; 46.1%, circumflex coronary artery; 23%, lateroventricular coronary artery; 15.3%, posterior descending coronary artery; 7.7%, diagonal coronary artery. No lesion was found in the left coronary artery. Conclusion In our analysis, 25% of patients with negative SPECT showed significant obstructive lesions.
%K Cardiopat赤a isqu谷mica
%K Obstrucci車n coronaria
%K Tomograf赤a coronaria
%K Coronary CT
%K Coronary obstruction
%K Ischemic heart disease
%U http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-93082011000200005