β源放射性支架的“糖果纸”样现象

任晓庆

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.

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

Renji Hospital, Shanghai Second Medical University, Shanghai 200001, China

Received Date: 2000-08-16

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.

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Reference (14)

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

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