Observation of the expansion behavior and quantitative evaluation of elastic recoil of a balloon-expandable stent in three dimensions using a Micro-CT system.

@article{Mori2012ObservationOT,
  title={Observation of the expansion behavior and quantitative evaluation of elastic recoil of a balloon-expandable stent in three dimensions using a Micro-CT system.},
  author={Futoshi Mori and Toshio Nakayama and Teruo Matsuzawa and Makoto Ohta},
  journal={Technology and health care : official journal of the European Society for Engineering and Medicine},
  year={2012},
  volume={20 4},
  pages={
          305-15
        }
}
  • Futoshi Mori, Toshio Nakayama, +1 author M. Ohta
  • Published 1 July 2012
  • Medicine
  • Technology and health care : official journal of the European Society for Engineering and Medicine
Percutaneous transluminal coronary angioplasty (PTCA) with stent implantation is widely used for the treatment of coronary stenosis. However, restenosis after stent implantation frequently reported by intravascular ultrasound evaluation. This may occur because of the reduced luminal area after implantation, insufficient stent expansion, or by the elastic recoil of the stent (ERS). Quantitative evaluation of stent expanding should provide further information on how to decrease the incidence of… 
Novel potential targets for prevention of arterial restenosis: insights from the pre-clinical research.
TLDR
The present review summarizes the most recent and promising therapeutic strategies identified in experimental models of (re)stenosis and potentially translatable to patients subjected to revascularization procedures.
Exposure dose reduction during lateral spine test with water filter.
  • Chang-Gyu Kim
  • Medicine, Physics
    Technology and health care : official journal of the European Society for Engineering and Medicine
  • 2016
TLDR
To minimize exposure dose during lateral spine X-Ray testing and obtain optimal image for diagnosis a water filter was made to measure and evaluate dose distribution and it was found that as thickness increased exposure dose decreased.

References

SHOWING 1-10 OF 26 REFERENCES
Effect of stent design on reduction of elastic recoil: A comparison via quantitative intravascular ultrasound
TLDR
A range of resistances to recoil is demonstrated by this model, with coil Stent designs undergoing greater elastic recoil than slotted tube stent designs and the locking stent design demonstrating the greatest radial strength and the most reduction in elastic recoil.
Elastic recoil of coronary stents: A comparative analysis
  • P. Barragan, R. Rieu, +4 authors G. Bayet
  • Medicine
    Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions
  • 2000
TLDR
The results of in vitro mechanical tests may confirm strongly the interest of a minimum ER in the prevention of the 6‐month restenosis.
Experimental Studies and Numerical Analysis of the Inflation and Interaction of Vascular Balloon Catheter-Stent Systems
TLDR
To reproduce the inflation of stent systems as in clinical practice, a pneumatic–hydraulic experimental setup is built, and a robust finite element model is developed based on the obtained experimental results.
A New 3-D Automated Computational Method to Evaluate In-Stent Neointimal Hyperplasia in In-Vivo Intravascular Optical Coherence Tomography Pullbacks
TLDR
A new computational method is presented to facilitate the physician in this endeavor to assess and compare new (drug-eluting) stents and a rotation correction method applied across OCT cross-section images for 3D reconstruction and visualization of reconstructed lumen and stent boundaries for further analysis in the longitudinal dimension of the coronary artery.
X-ray micro-tomography of a coronary stent deployed in a model artery.
Evaluation of Stent Performances using FEA considering a Realistic Balloon Expansion
TLDR
The results indicate that using stents composed of opened unit cells connected by bend-shaped link structures and controlling the geometrical and morphological features of the unit cell strut or the link structure at the distal ends of stent may improve mechanical characteristics ofStent.
Evaluation of intracoronary stenting by intravascular optical coherence tomography
TLDR
Intracoronary OCT for monitoring stent deployment is feasible and provides superior contrast and resolution of arterial pathology than IVUS.
Multislice CT Angiography in the Follow-up of Fenestrated Endovascular Grafts: Effect of Slice Thickness on 2D and 3D Visualization of the Fenestration Stents
TLDR
Visualization of the target vessel stents depends on the appropriate selection of multislice CT scanning protocols, and studies performed with a slice thickness of 1.0 or 1.25 mm produced similar image quality to those with a thickness of 0.5 or 0.625 mm.
A comparison of balloon-expandable-stent implantation with balloon angioplasty in patients with coronary artery disease. Benestent Study Group.
TLDR
The clinical and angiographic outcomes were better in patients who received a stent than in those who received standard coronary angioplasty, however, this benefit was achieved at the cost of a significantly higher risk of vascular complications at the access site and a longer hospital stay.
Comparisons of the Effects of Stent Eccentricity on the Neointimal Hyperplasia between Sirolimus-Eluting Stent versus Paclitaxel-Eluting Stent
TLDR
Lower SE of both SES and PES, which means asymmetric stent expansion, may not be associated with increased NIH, according to the associations between SE-mean and NIH volume index.
...
1
2
3
...