Coronary Heart Disease Clinical Trial
Official title:
The Comparative Study of OCT，Gemstone CT and 320-detector Row Spiral CT for Evaluating Restenosis of Coronary Artery Stent
In-stent restenosis is a major reason of coronary heart disease recurrence .Even in drug
eluting stent(DES), Restenosis rate could be up to 10% in diabetes and complex lesions
though it was about 3-5% in general. It is particularly important that in-stent restenosis
after implantation was early diagnosed and detected. The evaluation of OCT imaging is more
accurate for narrow area calculation, more clear for narrow organization structure and more
specific for detecting tissue types.It is currently the best way for restenosis histologic
diagnosis.But it has many weakness such as the higher cost,an invasive test, expensive
instrument, relatively complicated to operate,and etc.In this study, OCT image was regard as
the "gold standard" of stent restenosis.
The improvement of spatial resolution of Gemstone CT can effectively improve the imaging
quality and the measurement's accuracy of coronary artery stents.The diagnostic value of
in-stent restenosis of Gemstone CT is higher than of the 320-detector row spiral CT. To a
certain extent, the gemstone CT can replace OCT for examining the in-stent restenosis.
This study will examine the degree of in-stent restenosis by the gemstone CT and the
320-detector row spiral CT and compare the two ways on the basis of the result of OCT.
n/a
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Diagnostic
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