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Nitinol intravascular stent: results of preclinical evaluation.

Publication ,  Journal Article
Cragg, AH; De Jong, SC; Barnhart, WH; Landas, SK; Smith, TP
Published in: Radiology
December 1993

PURPOSE: To test an expandable nitinol intraluminal stent for hoop strength, biocompatibility, corrosion resistance, and patency. MATERIALS AND METHODS: Forty-four stents were implanted in the iliac arteries of 22 sheep. Follow-up was performed with angiography and histologic examination for up to 6 months. RESULTS: All but one stent remained widely patent during the follow-up period. Two stents in two sheep were placed incorrectly early in the study; these sheep were not followed up. Hoop strength was found to be superior to that of a similar, commercially available, self-expanding stent. Minimal corrosion was seen at 6 months, and the stent appears to be biocompatible. The stent has good radiopacity and deploys with minimal foreshortening. CONCLUSION: The stent can be reliably and safely deployed in the vascular system. Clinical trials in humans are warranted.

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Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

December 1993

Volume

189

Issue

3

Start / End Page

775 / 778

Location

United States

Related Subject Headings

  • Vascular Patency
  • Stress, Mechanical
  • Stents
  • Sheep
  • Nuclear Medicine & Medical Imaging
  • Iliac Artery
  • Graft Occlusion, Vascular
  • Equipment Design
  • Corrosion
  • Biocompatible Materials
 

Citation

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Cragg, A. H., De Jong, S. C., Barnhart, W. H., Landas, S. K., & Smith, T. P. (1993). Nitinol intravascular stent: results of preclinical evaluation. Radiology, 189(3), 775–778. https://doi.org/10.1148/radiology.189.3.8234703
Cragg, A. H., S. C. De Jong, W. H. Barnhart, S. K. Landas, and T. P. Smith. “Nitinol intravascular stent: results of preclinical evaluation.Radiology 189, no. 3 (December 1993): 775–78. https://doi.org/10.1148/radiology.189.3.8234703.
Cragg AH, De Jong SC, Barnhart WH, Landas SK, Smith TP. Nitinol intravascular stent: results of preclinical evaluation. Radiology. 1993 Dec;189(3):775–8.
Cragg, A. H., et al. “Nitinol intravascular stent: results of preclinical evaluation.Radiology, vol. 189, no. 3, Dec. 1993, pp. 775–78. Pubmed, doi:10.1148/radiology.189.3.8234703.
Cragg AH, De Jong SC, Barnhart WH, Landas SK, Smith TP. Nitinol intravascular stent: results of preclinical evaluation. Radiology. 1993 Dec;189(3):775–778.
Journal cover image

Published In

Radiology

DOI

ISSN

0033-8419

Publication Date

December 1993

Volume

189

Issue

3

Start / End Page

775 / 778

Location

United States

Related Subject Headings

  • Vascular Patency
  • Stress, Mechanical
  • Stents
  • Sheep
  • Nuclear Medicine & Medical Imaging
  • Iliac Artery
  • Graft Occlusion, Vascular
  • Equipment Design
  • Corrosion
  • Biocompatible Materials