Comparison of dose and image quality of dual-energy CT pulmonary angiografy on 2nd and 3 rd generation dual-source scanners
S Fischer, N Schultheis, P Dewes, J Scholtz, M Kerl, T Vogl, R Bauer · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2015 · Heft 04
Bibliografische Angaben
Zusammenfassung
Zielsetzung: To compare dose and image quality of second- and third-generation dual-source dual-energy CT (DECT) for pulmonary CT angiografy (pCTA). Material und Methodik: 75 patients underwent pCTA for clinically suspected pulmonary embolism in dual-energy mode. 25 patients were examined on a third-generation (Force, Siemens; group 1) and 50 patients on a second-generation (Flash, Siemens; group 2) dual-source CT using the same contrast injection protocol. Scan protocols were: 90 kV/60 mAs for tube A, 150 kV+Sn filter/46 mAs for tube B in group 1; 80 kV/171 mAs for tube A, 140 kV+Sn filter/102 mAs for tube B in…