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    Multislice CT angiography in cardiac imaging: prospective ECG-gating or retrospective ECG-gating?

    133329_133329.pdf (219.3Kb)
    Access Status
    Open access
    Authors
    Sun, Zhonghua
    Date
    2010
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Sun, Zhonghua. 2010. Multislice CT angiography in cardiac imaging: prospective ECG-gating or retrospective ECG-gating? Biomedical Imaging and Intervention Journal. 6 (1): pp. 1-7.
    Source Title
    Biomedical Imaging and Intervention Journal
    DOI
    10.2349/biij.6.1.e4
    ISSN
    1823-5530
    Faculty
    School of Science and Computing
    Faculty of Science and Engineering
    Department of Imaging and Applied Physics
    Remarks

    Except where otherwise noted, articles published in the Biomedical Imaging and Intervention Journal are distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited, including full bibliographic details and the URL, and this statement is included.

    URI
    http://hdl.handle.net/20.500.11937/38354
    Collection
    • Curtin Research Publications
    Abstract

    With the advent of multislice CT more than a decade ago, multislice CT angiography has demonstrated a huge potential in the less invasive imaging of cardiovascular disease, especially in the diagnosis of coronary artery disease. The diagnostic accuracy of multislice CT angiography has been significantly augmented with the rapid technical developments ranging from the initial 4-slice, to the current 64-slice and 256 and 320-slice CT scanners. This is mainly demonstrated by the improved spatial and temporal resolution when compared to the earlier type of CT scanners. Traditionally, multislice CT angiography is acquired with retrospective ECG-gating with acquisition of volume data at the expense of increased radiation dose, since data is acquired at the entire cardiac cycle, although not all of them are used for postprocessing or reconstructions. Recently, there is an increasing trend of utilising prospective ECG-gating in cardiac imaging with latest multislice CT scanners (64 or more slices) with significant reduction of radiation dose when compared to retrospective ECG-gating method. However, there is some debate as to the diagnostic value of prospective ECG-gating in the diagnosis of coronary artery disease, despite its attractive side of radiation dose reduction. In this article, I will review the performance of retrospective ECG-gating in the diagnostic value of coronary artery disease, highlight the potential applications of prospective ECG-gating, and explore the future directions of multislice CT angiography in cardiac imaging.

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