在显示支气管的狭窄、动脉上支气管和桥形支气管时,支气管造影比支气管镜和3D重建高分辨率螺旋CT更好。在观察扩张术和激光治疗的疗效时,支气管造影也更准确。但目前尚无理想的支气管造影用的对比剂。作者以家兔为试验对象对硫酸钡、iohexol、油性丙碘吡酮、水性丙碘吡酮和Perflubron等五种对比剂的成像质量、组织学改变、对血液动力学及血气分析的影响等进行了评价。将动物 Bronchoscopy is better than bronchoscopy and 3D reconstruction of high-resolution spiral CT when showing bronchial stenosis, arterial bronchus, and bridge bronchus. Bronchography is also more accurate when looking at the effects of dilation and laser treatment. However, there is no ideal contrast agent for bronchography. In this study, we evaluated the imaging quality, histological changes, hemodynamics and blood gas analysis of five contrast media such as barium sulfate, iohexol, oily propionate, propranolol and Perflubron in rabbits The evaluation. The animals