Gerlock A J, Goncharenko V
Rev Interam Radiol. 1979 Jul;4(3):131-4.
Twenty abdominal aortograms utilizing a straight-tipped catheter were evaluated for catheter tip motion during the injection of contrast media. The catheter tips were stable in 15 patients but showed downward recoil in the remaining 5 patients. These 5 patients had marked tortuosity of their abdominal aortae which was felt to be the etiology of the catheter tip instability. Based on this finding, the use of a straight-tipped catheter is to be discouraged in patients with extreme tortuosity of the abdominal aorta.
对20例使用直头导管的腹主动脉造影进行了评估,以观察造影剂注射过程中导管尖端的运动情况。15例患者的导管尖端稳定,但其余5例患者的导管尖端出现向下回缩。这5例患者的腹主动脉有明显迂曲,被认为是导管尖端不稳定的病因。基于这一发现,对于腹主动脉极度迂曲的患者,不建议使用直头导管。