Feasibility of Low Volume of High-Concentration Iodinated Contrast Medium With 70 kVp Tube Voltage on High-Pitch Dual-Source Computed Tomography Angiography in Children With Congenital Heart Disease

2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Pei Nie ◽  
Jian Guo ◽  
Zhitao Yang ◽  
Xiaoli Li ◽  
Guangjie Yang
Keyword(s):  
Computed Tomography ◽  
Congenital Heart ◽  
High Pitch ◽  
High Concentration ◽  
Tube Voltage ◽  
Iodinated Contrast Medium ◽  
Iodinated Contrast ◽  
Dual Source ◽  
Low Volume ◽  
Dual Source Computed Tomography

scholarly journals Sensitivity of High-Pitch Dual-Source Computed Tomography for the Detection of Anomalous Pulmonary Venous Connection in Infants

2020 ◽  
Author(s):  
Lennart Well ◽  
Julius Matthias Weinrich ◽  
Mathias Meyer ◽  
Torben Kehl ◽  
Johannes Salamon ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Congenital Heart Defects ◽  
Congenital Heart ◽  
Interobserver Agreement ◽  
Heart Defects ◽  
High Pitch ◽  
Dual Source ◽  
Sensitivity Specificity ◽  
Anomalous Pulmonary Venous Connection ◽  
Dual Source Computed Tomography

Purpose To evaluate the sensitivity, specificity, and interobserver reliability of high-pitch dual-source computed tomography angiography (CTA) in the detection of anomalous pulmonary venous connection (APVC) in infants with congenital heart defects and to assess the associated radiation exposure. Materials and Methods 78 pulmonary veins in 17 consecutively enrolled patients with congenital heart defects (6 females; 11 males; median age: 6 days; range: 1–299 days) were retrospectively included in this study. All patients underwent high-pitch dual-source CTA of the chest at low tube voltages (70 kV). APVC was evaluated independently by two radiologists. Sensitivity, specificity, positive (PPV) and negative predictive values (NPV), and interobserver agreement were determined. For standard of reference, one additional observer reviewed CT scans, echocardiography reports, clinical reports as well as surgical reports. In cases of disagreement the additional observer made the final decision based on all available information. Results Detection of APVC with high-pitch dual-source CTA revealed a good sensitivity (91 %) and specificity (99 %), with PPV and NPV of 98 % and 97 %. Interobserver agreement was almost perfect (Kappa = 0.84). The median DLP was 3.8 mGy*cm (IQR 3.3–4.7 mGy*cm) and the median radiation dose was 0.33 mSv (IQR 0.26–0.39 mSv). Conclusion High-pitch dual-source CTA in infants with congenital heart defects allows for accurate and reliable assessment of APVC at a low radiation dose. Key Points:  Citation Format

Automated Tube Voltage Adaptation in Combination with Advanced Modeled Iterative Reconstruction in Thoracoabdominal Third-Generation 192-Slice Dual-Source Computed Tomography

2015 ◽  
Vol 22 (9) ◽  
pp. 1081-1087 ◽  
Author(s):  
Jan-Erik Scholtz ◽  
Julian L. Wichmann ◽  
Kristina Hüsers ◽  
Martin Beeres ◽  
Nour-Eldin Abdelrehim Nour-Eldin ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Iterative Reconstruction ◽  
Third Generation ◽  
Tube Voltage ◽  
Dual Source ◽  
Dual Source Computed Tomography
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