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Background: Functional single ventricle (FSV) is a rare and complex cardiac malformation. FSV is a broad term including various cardiac structural anomalies in which one ventricle is severely underdeveloped. We aimed to accurately diagnose FSV and its different subtypes using multidetector computed tomography (MDCT). Methods: Eighteen patients with suspected FSV underwent cardiac computed tomography angiography (CTA), and the results were compared to those of echocardiography. Results: MDCT could accurately diagnose FSV and its different subtypes. It detected FSV of left ventricular morphology in 77.8% with the most common associated subtype is double inlet left ventricle (DILV) and FSV of right ventricular morphology in 22.2% with double outlet right ventricle (DORV) as the commonest variant. MDCT was superior to echocardiography in defining the dominant ventricle in 22.2% of cases and detection of the associated extracardiac anomalies in 38.9% of patients. MDCT could assess the connection and state of palliative shunts in the 4 patients with earlier interventions. Conclusion: MDCT can diagnose FSV and the associated extracardiac malformation and is indispensable in pre and postoperative follow up. [ABSTRACT FROM AUTHOR]

Purpose: In many healthcare settings in developing nations, multislice computed tomography (MSCT) imaging may be the only available diagnostic modality for patients with suspected COVID-19 infection, due to a shortage of laboratory kits. This study aimed to evaluate the diagnostic performance and interobserver variability of CO-RADS (COVID-19 Reporting and Data System) in the triage of patients with suspected COVID-19 infection in Zagazig University Hospital. Material and methods: This study included 2500 patients with suspected COVID-19 infection, mean age 60.61 years ± 13.89. 61.4% were male. Unstable patients requiring urgent invasive ventilation, acute coronary syndrome patients, pregnant females, and patients with RT-PCR results available prior to MSCT were excluded from this study. RT-PCR was performed in all patients included in the study. Results: Fever and dry cough were the most common clinical symptoms, detected in 80.16% and 52.00%, respectively. The most common comorbidities were cardiovascular diseases, followed by chronic lung disease and diabetes, found in 27.36%, 22.80%, and 18.00%, respectively. Of the 1500 RT-PCR-positive patients, 40% had CO-RADS score 5, while 3.4% had CO-RADS score 1. Of the 1000 RT-PCR-negative patients, 36% had CO-RADS score 2 and 1% were scored as CO-RADS 5. There was excellent agreement in the studied patients as the weighted κ value was 0.846, which was more pronounced at CO-RADS 5 (24.40%). The sensitivity of CO-RADS was higher in the 2nd scenario (83.27% vs. 55.27%) while the specificity was higher in the 1st scenario (95% vs. 65%). Conclusion: The CO-RADS scoring system is a sensitive and specific method that can help in the diagnosis of COVID-19 during the peak of the COVID-19 pandemic. CO-RADS is a triage test in resource-constrained environments, assisting in the optimization of RT-PCR tests, isolation beds, and intensive care units. [ABSTRACT FROM AUTHOR]