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Proceedings Paper

Principle and applications of dual source CT
Author(s): Thomas Flohr
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Paper 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.

Paper Details

Date Published: 15 September 2008
PDF: 10 pages
Proc. SPIE 7078, Developments in X-Ray Tomography VI, 707807 (15 September 2008); doi: 10.1117/12.793802
Show Author Affiliations
Thomas Flohr, Siemens Healthcare (Germany)

Published in SPIE Proceedings Vol. 7078:
Developments in X-Ray Tomography VI
Stuart R. Stock, Editor(s)

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