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Updated: Jul 17, 2026

Time-Resolved, Dynamic Computed Tomography Angiography for Characterization of Aortic Endoleaks and Treatment Guidance via 2D-3D Fusion-Imaging
Published on: December 9, 2021
Dual-source computed tomography: advances of improved temporal resolution in coronary plaque imaging
Anja J Reimann1, Daniel Rinck, Ayser Birinci-Aydogan
1Department of Diagnostic Radiology, Eberhard-Karls-University of Tuebingen, Tuebingen, Germany. anja.reimann@med.uni-tuebingen.de
Objectives:
The aim of this study was to quantify image quality gains of a moving coronary plaque phantom using dual-source computed tomography (DSCT) providing 83 milliseconds temporal resolution in direct comparison to 64 slice single-source multidetector CT (MDCT) with a temporal resolution of 165 milliseconds.
Materials And Methods:
Three cardiac vessel phantoms with fixed 50% stenosis and changing plaque configurations were mounted on a moving device simulating cardiac motion. Scans were performed at a simulated heart frequency of 60 to 120 bpm. Image quality assessment was performed in different anatomic orientations inside a thoracic phantom.
Results:
A significant improvement of image quality using the DSCT could be found (P=0.0002). Relevant factors influencing image quality aside from frequency (P=0.0002) are plaque composition (P<0.0001), as well as orientation (P<0.0001).
Conclusion:
Scanning with 83 milliseconds temporal resolution improved image quality of coronary plaque at higher heart frequencies.
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