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Nondestructive Detection for Fatigue Cracks of Stents Based on#br# X-ray CT Imaging

  

  1. 1. College of Engineering, South China Agricultural University, Guangzhou Guangdong 510642, China;
    2. South Agricultural Machinery and Equipment Key Lab of Ministry of Education, Guangzhou Guangdong 510642, China
  • Online:2017-06-30 Published:2017-07-17

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Abstract: Stents are commonly used in cardiac interventional procedures. Under the action of
alternating stress, fatigue crack is one of the important factors leading to Stents damages. X-CT
detection technology is one of the advanced detection technologies in the field of medicine. We use
XCT to scan a heart stents with crack and obtain X-ray CT sequence diagram first. Then do the stent
X-CT sequence image pre-processing and 3D reconstruction to obtain heart stent 3D visual CT
images and to distinguish cracks or defects of heart support. The study shows that X-CT can well
support heart fatigue crack detection.

Key words: X-CT, stent, fatigue crack, nondestructive detection