随着放射介入诊断技术及治疗技术的广泛应用,造影剂的使用日趋广泛。虽说造影剂品种不断翻新,由离子型到非离子型,由高渗性到低渗型、等渗型,或由单聚体到二聚体,力求减少造影剂对肾脏的损害。但在心血管介入治疗过程中常需使用较大剂量的造影剂,加上既往就有轻度肾功能不全、 With the widespread use of radiation-induced diagnostic techniques and therapeutic techniques, the use of contrast media is becoming more widespread. Although the continuous renovation of contrast agents, from ionic to non-ionic, from hypertonic to hypotonic, isotonic, or from dimer to dimer, and strive to reduce contrast agent damage to the kidneys. However, cardiovascular intervention often require the use of larger doses of contrast medium, coupled with previous mild renal insufficiency,