Principle and applications of dual source CT

Thomas Flohr

doi:10.1117/12.793802

Abstract

Dual source CT (DSCT) has the potential to solve remaining limitations of conventional multi-detector row CT (MDCT)-scanners, such as insufficient temporal resolution for ECG-controlled cardiac imaging. A DSCT is equipped with two X-ray tubes and two corresponding detectors that are mounted onto the rotating gantry with an angular offset of 90°. The key benefit of DSCT for cardiac scanning is improved temporal resolution equivalent to a quarter of the gantry rotation time (83 ms at 0.33 s rotation time). Additionally, both X-ray tubes can be operated at different kV- and mA-settings, enabling the acquisition of dual energy data. The acquisition of dual energy CT data can add functional information to the morphological information based on different X-ray attenuation coefficients that is usually obtained in a CT examination.

Citation Download Citation

Thomas Flohr, Thomas Flohr, } "Principle and applications of dual source CT", Proc. SPIE 7078, Developments in X-Ray Tomography VI, 707807 (15 September 2008); doi: 10.1117/12.793802; https://doi.org/10.1117/12.793802

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