Diagnostic Accuracy of Coronary CT Angiography in Comparison to Conventional Angiography in Diagnosis of Coronary Heart Diseases: Segmental Basis Analysis
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- Category: Vol. 85, December 2017
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Diagnostic Accuracy of Coronary CT Angiography in Comparison to Conventional Angiography in Diagnosis of Coronary Heart Diseases: Segmental Basis Analysis, MOHAMED METWALLY ABO EL-ATAA, TALAL A.Y. AMER, GHADA M. GABALLAH, AHMED H. HOSNY EL-ADAWY and RANIA Y.A. MEHANNA
Abstract
Background: Coronary CT Angiography (CCTA) consid-ered an ideal noninvasive technique for diagnosis of coronary heart diseases comparing to the conventional angiography.
Objective: To assess the diagnostic accuracy of the com-puted tomographic angiography scan in detecting coronary artery disease compared to conventional coronary angiography.
Patients and Methods: A total number of 41 patients were included in this study (25 males-16 females) with mean age of 57.46±10.96 years. They underwent both non-invasive CCTA and invasive conventional angiography within 15 days interval. Non-contrast study to determine the calcium score, the contrast enhanced ECG gated scan. Systemic analysis of the CCTA and conventional angiography findings were per-formed separately.
Results: 507 segments were assessed using 128 slices CT machine with high accuracy of CTA in diagnosis of coronary artery diseases with sensitivity (97.1%), specifity (96.8%) PPV (88.5%), NPP (99.2%) and accuracy (96.8%).
Conclusion: Noninvasive coronary CT angiography is a reliable technique to detect coronary stenosis in patients presenting with low and intermediate risk patients reducing the number of patients undergoing unnecessary invasive diagnostic angiography.