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      64-slice computed tomography angiography in the diagnosis and assessment of coronary artery disease : systematic review and meta-analysis

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      Mowatt 2008.pdf (232.2Kb)
      Publication date
      2008
      Author
      Mowatt, Graham
      Cook, Jonathan Alistair
      Hillis, Graham Scott
      Walker, Shonagh Mary
      Fraser, Cynthia Mary
      Jia, Xueli
      Waugh, Norman Robert
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      Abstract
      Objective To assess whether 64-slice computed tomography (CT) angiography might replace some coronary angiography (CA) for diagnosis and assessment of coronary artery disease (CAD). Methods We searched electronic databases, conference proceedings and scanned reference lists of included studies. Eligible studies compared 64-slice CT with a reference standard of CA in adults with suspected/known CAD, reporting sensitivity and specificity or true and false positives and negatives. Data were pooled using the hierarchical summary receiver operating characteristic model. Results Forty studies were included; 28 provided sufficient data for inclusion in the meta-analyses, all using a cutoff of ≥ 50% stenosis to define significant CAD. In patient-based detection (n=1286) 64-slice CT pooled sensitivity was 99% (95% credible interval (CrI) 97 to 99%), specificity 89% (95% CrI 83 to 94%), median positive predictive value (PPV) across studies 93% (range 64 to 100%) and negative predictive value (NPV) 100% (range 86 to 100%). In segment-based detection (n=14,199) 64-slice CT pooled sensitivity was 90% (95% CrI 85 to 94%), specificity 97% (95% CrI 95 to 98%), median positive predictive value (PPV) across studies 76% (range 44 to 93%) and negative predictive value (NPV) 99% (range 95 to 100%). Conclusions 64-slice CT is highly sensitive for patient-based detection of CAD and has high NPV. An ability to rule out significant CAD means that it may have a role in the assessment of chest pain, particularly when the diagnosis remains uncertain despite clinical evaluation and simple non-invasive testing.
      Citation
      Mowatt, G., Cook, J.A., Hillis, G., Walker, S., Fraser, C., Jia, X., and Waugh, N. (2008). 64-slice computed tomography angiography in the diagnosis and assessment of coronary artery disease : systematic review and meta-analysis. Heart, 94(11), pp. 1386-1393.
      URI
      http://hdl.handle.net/2164/281
      DOI
      http://dx.doi.org/10.1136/hrt.2008.145292
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