CT angiography (CTA) is based on acquisition of data during the arterial phase of contrast material passage. CTA needs timing of the contrast bolus, which should be based on accurate knowledge of bolus geometry. Experimental and human studies on bolus geometry and bolus timing in CTA were reviewed. Important parameters of bolus geometry and methods of bolus timing (test bolus and bolus tracking) are described. Recommendations are given for an optimal CTA protocol.

Bolus timing, Bolus tracking, CT angiography, Multidetector CT, Test bolus
dx.doi.org/10.1097/00004728-200207000-00022, hdl.handle.net/1765/66893
Journal of Computer Assisted Tomography
Department of Radiology

Cademartiri, F, van der Lugt, A, Luccichenti, G, Pavone, P, & Krestin, G.P. (2002). Parameters affecting bolus geometry in CTA: A review. Journal of Computer Assisted Tomography, 26(4), 598–607. doi:10.1097/00004728-200207000-00022