Diagnostic Accuracy of Coronary Computed Tomography AngiographyA Comparison Between Prospective and Retrospective Electrocardiogram Triggering
Gianluca Pontone, MD*,
Daniele Andreini, MD,
Antonio L. Bartorelli, MD,
Sarah Cortinovis, MD,
Saima Mushtaq, MD,
Erika Bertella, MD,
Andrea Annoni, MD,
Alberto Formenti, MD,
Enrica Nobili, MD,
Daniela Trabattoni, MD,
Piero Montorsi, MD,
Giovanni Ballerini, MD,
Piergiuseppe Agostoni, MD, PhD and
Mauro Pepi, MD
Centro Cardiologico Monzino, IRCCS, and the Department of Cardiovascular Sciences, University of Milan, Milan, Italy
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Figure 2 Spearman Correlation and Bland-Altman Analysis Between MDCT and ICA in Group 1
Spearman correlation (upper panels) and Bland-Altman analysis (lower panels) between multidetector computed tomography (MDCT) and invasive coronary angiography (ICA) for the assessment of percent stenosis of nonstented and stented segments in Group 1. Multiple overlapping data points are presented.
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Figure 3 Spearman Correlation and Bland-Altman Analysis Between MDCT and ICA in Group 2
Spearman correlation (upper panels) and Bland-Altman analysis (lower panels) between multidetector computed tomography (MDCT) and invasive coronary angiography (ICA) for the assessment of percent stenosis of nonstented and stented segments in Group 2. Multiple overlapping data points are presented.
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Figure 4 Case Example
Multidetector computed tomography (MDCT) (voltage: 120 KVp; tube current: 650 mAs; slice thickness: 0.625 mm; padding: 0) with prospective electrocardiogram triggering of a 65-year-old man with previous stenting of the left main (LM), left anterior descending (LAD), and left circumflex (LCX) coronary arteries. (Upper panels) LM, LCx, and right coronary artery (RCA) volume rendering reconstruction. (Lower panels) Multiplanar reconstruction showing no restenosis of LM and LCx stents and multiple restenoses of RCA stent (red circles). The effective dose of MDCT was 2.5 mSv.
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