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    The evolution and investigation of native coronary arteries in patients after coronary stent implantations: a study by 320-detector CT angiography

    Access Status
    Fulltext not available
    Authors
    Juan, Y.
    Huang, Y.
    Sun, Zhonghua
    Hsieh, I.
    Chan, W.H.
    Chen, C.
    Hung, K.C.
    Wen, M.S.
    Wan, Y.
    Date
    2014
    Type
    Journal Article
    
    Metadata
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    Citation
    Juan, Y. and Huang, Y. and Sun, Z. and Hsieh, I. and Chan, W.H. and Chen, C. and Hung, K.C. et al. 2014. The evolution and investigation of native coronary arteries in patients after coronary stent implantation: a study by 320-detector CT angiography. International Journal of Cardiovascular Imaging. 30 (1): pp. 13-24.
    Source Title
    International Journal of Cardiovascular Imaging
    DOI
    10.1007/s10554-014-0417-9
    ISSN
    1569-5794
    School
    Department of Imaging and Applied Physics
    URI
    http://hdl.handle.net/20.500.11937/13969
    Collection
    • Curtin Research Publications
    Abstract

    To study the role of 320-detector coronary computed tomography angiography (CTA) in assessing native coronary arteries in patients treated with coronary stents. 123 patients with coronary stenting received both CTA and conventional coronary angiography (CCA) within 1 day. The clinical parameters, coronary calcium scoring, CTA and CCA were analyzed to determine the prevalence of significant stenosis of native coronary arteries (SSNCA), the predictive value of CTA and the factors correlating with SSNCA and newly developed SSNCA after stenting (NDSSNCAS), with CCA as the standard of reference, using both vessel-based analysis (VBA) and patient-based analysis (PBA). Both the source and the reconstructed images were analyzed by CTA. All native coronary arteries were interpretable independent of cardiac motion. CTA showed a sensitivity/specificity of 93.5 %/97.3 % and 92.5 %/92.5 % in diagnosing SSNCA in VBA and PBA, respectively. The significant factors related to SSNCA were higher calcium scores (P = 0.003), a higher serum glucose level (P = 0.048), a greater number of vessels without previous stent placement (P = 0.003) and fewer stents implanted within the vessels (P = 0.003). The risk factors showed no significant correlation from PBA on SSNCA or from NDSSNCAS on either VBA or PBA. CTA demonstrates excellent correlation with CCA. The prevalence of SSNCA is significantly correlated with the presence of higher calcium scores in the arteries, a higher serum glucose level, a greater number of vessels without previous stent placement and fewer stents implanted within the vessels; PBA on SSNCA and NDSSNCAS on both VBA and PBA showed no significance.

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