Long-term patency of elastase-induced aneurysm model in rabbits

Y. H. Ding, D. Dai, D. A. Lewis, M. A. Danielson, Ramanathan D Kadirvel, H. J. Cloft, David F Kallmes

Research output: Contribution to journalArticle

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Abstract

BACKGROUND AND PURPOSE: Long-term patency in untreated experimental aneurysms represents a critical attribute of any system proposed for the testing of aneurysm occlusion devices. Our purpose was to evaluate the long-term patency in elastase-induced saccular aneurysm models in rabbits. METHODS: Serial intravenous digital subtractive angiography (IVDSA) was performed in 20 elastase-induced saccular aneurysm models in rabbits 1, 3, 6, 9, 12, and 24 months after creation. Aneurysm dimensions, including neck diameter, width, and height, were measured and calculated from IVDSA images. Comparisons of the aneurysm sizes across time were performed by using the paired Wilcoxon signed rank test and the Friedman test. RESULTS: None of the 20 aneurysms showed spontaneous thrombosis at any time point. Mean dimensions did not change over time for any parameter. Mean aneurysm neck, width, and height were not significantly changed at interval evaluations of 1, 3, 6, 9, 12, and 24 months (P = .210; P = .413, and P = .405, respectively). CONCLUSION: Long-term patency in elastase-induced saccular aneurysm models in rabbits is excellent. Aneurysm dimensions remain stable for as long as 2 years following creation.

Original languageEnglish (US)
Pages (from-to)139-141
Number of pages3
JournalAmerican Journal of Neuroradiology
Volume27
Issue number1
StatePublished - 2006

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Pancreatic Elastase
Aneurysm
Rabbits
Angiography
Nonparametric Statistics
Thrombosis
Neck
Equipment and Supplies

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Ding, Y. H., Dai, D., Lewis, D. A., Danielson, M. A., Kadirvel, R. D., Cloft, H. J., & Kallmes, D. F. (2006). Long-term patency of elastase-induced aneurysm model in rabbits. American Journal of Neuroradiology, 27(1), 139-141.

Long-term patency of elastase-induced aneurysm model in rabbits. / Ding, Y. H.; Dai, D.; Lewis, D. A.; Danielson, M. A.; Kadirvel, Ramanathan D; Cloft, H. J.; Kallmes, David F.

In: American Journal of Neuroradiology, Vol. 27, No. 1, 2006, p. 139-141.

Research output: Contribution to journalArticle

Ding, YH, Dai, D, Lewis, DA, Danielson, MA, Kadirvel, RD, Cloft, HJ & Kallmes, DF 2006, 'Long-term patency of elastase-induced aneurysm model in rabbits', American Journal of Neuroradiology, vol. 27, no. 1, pp. 139-141.
Ding YH, Dai D, Lewis DA, Danielson MA, Kadirvel RD, Cloft HJ et al. Long-term patency of elastase-induced aneurysm model in rabbits. American Journal of Neuroradiology. 2006;27(1):139-141.
Ding, Y. H. ; Dai, D. ; Lewis, D. A. ; Danielson, M. A. ; Kadirvel, Ramanathan D ; Cloft, H. J. ; Kallmes, David F. / Long-term patency of elastase-induced aneurysm model in rabbits. In: American Journal of Neuroradiology. 2006 ; Vol. 27, No. 1. pp. 139-141.
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