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    Assessment of Coronary Heart disease In Low Likelihood patients with End Stage kidney disease (ACHILLES) Comparison between Coronary Computed Tomography Angiography and Myocardial Perfusion Imaging 
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    • Assessment of Coronary Heart disease In Low Likelihood patients with End Stage kidney disease (ACHILLES) Comparison between Coronary Computed Tomography Angiography and Myocardial Perfusion Imaging
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    Assessment of Coronary Heart disease In Low Likelihood patients with End Stage kidney disease (ACHILLES) Comparison between Coronary Computed Tomography Angiography and Myocardial Perfusion Imaging

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    Capuano_E_PhD_final_210717.pdf (2.030Mb)
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    Queen Mary University of London
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    Abstract
    Purpose: To evaluate the diagnostic performance of Coronary Computed Tomography Angiography (CCTA) in predicting Myocardial Perfusion Scintigraphy (MPS) perfusion defects in low likelihood patients with End Stage Renal Disease (ESRD) awaiting transplant. Materials and Methods: In total, 131 consecutive patients with ESRD awaiting transplant were prospectively enrolled in this study (86 men; 54±9years). All patients underwent MPS as per standard of care and in addition non-enhanced CT for calcium scoring (CAC score) and Coronary Computed Tomography Angiography (CCTA). Results: The sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of CAC score in predicting MPS perfusion defects were 88%, 35%, 28% and 92%, respectively. The sensitivity, specificity, PPV and NPV of CCTA in predicting MPS perfusion defects at the patient level were 55%, 87%, 57% and 87%, respectively, and 48%, 92%, 41% and 94% at the vessel level. The diagnostic performance of CCTA in predicting MPS perfusion defects improved when patients with CAC score higher than 1000 (15/70, 21%) were excluded from the analysis. In patients with positive CAC score up to 1000 sensitivity, specificity, PPV and NPV at the patient level were 60%, 93%, 75% and 86% respectively. These were 53%, 91%, 36% and 95%, respectively, at the vessel level. Conclusion: Non-enhanced CT for CAC score and CCTA can be considered useful diagnostic tools in the ESRD population, particularly in identifying patients without coronary artery disease. This approach however had limitations in the presence of high CAC score.
    Authors
    CAPUANO, ERMANNO
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    http://qmro.qmul.ac.uk/xmlui/handle/123456789/25810
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    The copyright of this thesis rests with the author and no quotation from it or information derived from it may be published without the prior written consent of the author
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