Buschman D L
Department of Radiology, National Jewish Center for Immunology and Respiratory Medicine, Denver.
Chest. 1991 Mar;99(3):747-9. doi: 10.1378/chest.99.3.747.
Alveolarization of the barium sulfate and subsequent retention of barium sulfate for years was demonstrated in three patients in whom dilute suspension of barium sulfate in water was used for bronchography. Pathologic examination in one patient showed barium sulfate within macrophages in the alveolar spaces and walls and in the perivascular and peribronchial interstitium. Since the residual barium sulfate interferes with imaging procedures of the lungs, it represents an unwanted event in patients with pulmonary disease. High-resolution computed tomography is the preferred method of evaluating for bronchiectasis. If bronchogram is performed, it should be performed after bronchoscopy using oily propyliodone (Dionosil).
在3例使用硫酸钡水稀释混悬液进行支气管造影的患者中，显示硫酸钡出现肺泡化并随后数年留存体内。1例患者的病理检查显示肺泡腔、肺泡壁以及血管周围和支气管周围间质内的巨噬细胞中有硫酸钡。由于残留的硫酸钡会干扰肺部成像检查，所以它对于肺部疾病患者来说是不良事件。高分辨率计算机断层扫描是评估支气管扩张的首选方法。如果要进行支气管造影，应在支气管镜检查后使用油性碘普罗胺（碘苯酯）进行。
