导管物质递送的有效性是介入放射学的一个重要问题，特别是对于灌注治疗，局部动脉内药物注射在药物动力学上的优势已经被有力证实。一般这种治疗过程提供局部的适宜浓度而保持全身的低浓度，以减小全身反应和毒性介入。然而，粗劣的药物混合会由于产生过量的局部浓度而对周围 The effectiveness of catheter delivery is an important issue in interventional radiology. In particular, the pharmacokinetic advantages of topical intra-arterial drug injection have been strongly demonstrated, especially for perfusion therapy. In general, this treatment provides a locally suitable concentration while maintaining a low systemic level to reduce systemic reactions and toxicity. However, poor drug mixing can be around because of the excess local concentration