Detector-based spectral computed tomography: a review

This review analyses the principles of detector-based spectral computed tomography and describes its common clinical applications.

 

 

 

Teaching points:

• The top and bottom layers of dual-layer CT absorb low- and high-energy photons, respectively.
• Multiple spectral images are generated by projection-space decomposition.
• Spectral images can be generated in all patients scanned in this scanner.

Article: Detector-based spectral CT with a novel dual-layer technology: principles and applications

Authors: Negin Rassouli, Maryam Etesami, Amar Dhanantwari and Prabhakar Rajiah