β源放射性支架的“糖果纸”样现象

任晓庆

β源放射性支架的“糖果纸”样现象

任晓庆

文章导航 > 国际放射医学核医学杂志 > 2001, 25 > 1: (31-33)

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β源放射性支架的“糖果纸”样现象

任晓庆

200001 上海, 上海第二医科大学附属仁济医院心内科

作者简介: 任晓庆(1963-),男,山东菏泽人,上海第二医科大学附属仁济医院心内科主治医师,医学博士,主要从事辐射抑制血管再狭窄的研究。;

基金项目:
国家自然科学基金资助项目(39970221)
中图分类号: Q274;R817.8

The problem of the “candy wrapper” for β-particle emitting stent implantation

REN Xiao-qing

Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China
CLC number: Q274;R817.8

摘要: 临床上β源放射性支架出现边端再狭窄,即所谓的"糖果纸"样现象。其产生的机制可能为支架边端放射性活度降低,支架边缘组织损伤过大及支架边缘低剂量辐射刺激组织增生。解决边端再狭窄的对策为应用热、冷端支架及γ支架,增加支架端侧的放射性强度,使用钝边球囊安放支架等。
- 再狭窄 /
- 支架 /
- 放射
Abstract: There is an "edge effect" or "candy wrapper" problem at the stent edges for β-particle emitting stent im-plantation. The mechanism for "candy wrapper" may conclude low activity level of radiation, aggressive injury to vessel at the margins of the stent and neointimal proliferation due to low-dose radiation stimulation. The methods to solve the "candy wraper" could be proposed:(1) the square-shouldered balloon, (2) the cold-end stent, (3) the hot-end stent, (4) a self-expanding radioactive stent, (5) theγ-stent and so on.
- restenosis /
- stent /
- radiation
本作品遵循Signature-Non-Commercial Use 4.0 International (CC BY-NC 4.0)协议

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