简介: |
Today, dual energy CT (DECT) is widely available in clinical CT systems. The way the modality is implemented differs significantly from manufacturer to manufacturer. While being intended to provide additional contrast, i.e. spectroscopic information, DECT is often misused as an artifact reduction technique. Technical details of dual energy CT and of its use cases will be highlighted to get an understanding of today’s spectral CT technology. The presentation will further discuss alternative methods for artifact reduction. Last but not least we will take an excursion to the field of photon counting energy-selective detectors and discuss this new technology in comparison to DECT. |
