The bottom dose limit for soft tissue evaluation in contrast enhanced CT of the chest: A dose finding cadaver study using a model-based iterative image reconstruction approach
F Mück, Z Deak, S Roesch, F Fischer, O Peschel, K Weber, M Reiser, S Wirth · RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren · 2014 · Heft 04
Bibliografische Angaben
Zusammenfassung
Zielsetzung: To compare soft tissue image quality (IQ) in dose varying contrast enhanced 64MDCT scans of the chest reconstructed with model based iterative reconstruction (MBIR), to full-dose examinations and adaptive statistical iterative reconstruction (ASIR). Material und Methodik: Under IRB approval 25 human cadavers were included. After contrast medium injection each cadaver was scanned (CT HD750; GE Healthcare, Waukesha, WI) with varying dose levels D0-D5 and respectively reconstructed with MBIR (D0: 0.625 mm helical, 0,984 pitch, 120 kV, 10 – 400mA modulation, noise index NI = 39, variable thickness VS =…