Segarra M S, Cardús J C
Surg Gynecol Obstet. 1975 Aug;141(2):248-50.
A method of azygography has been used in a study of patients with carcinoma of the esophagus prior to thoracotomy. Total blockage or progressive reduction of venous caliber at the actual level of the lesion with contralateral filling of the azygos vein or back pressure signs on the azygogram indicates that the growth is not resectable at operation.
一种奇静脉造影方法已用于开胸手术前对食管癌患者的研究。在病变实际水平处静脉管径完全阻塞或逐渐变细，同时奇静脉对侧充盈或奇静脉造影显示有反压征象，表明该肿瘤在手术中无法切除。
