Valentina Taviani1,2, Andrew James Patterson1, Pauline Wong1, Michael P. Sutcliffe2, Martin John Graves1, Jonathan Harvey Gillard1
1Department of Radiology, University of Cambridge, Cambridge, UK; 2Department of Engineering, University of Cambridge, Cambridge, UK
The distensibility coefficient, often used as an index of arterial elasticity, requires the maximum relative change in the luminal cross-sectional area to be determined. In this work a human-tissue-mimicking phantom was imaged using three different pulse sequences (cine phase-contrast, cine bright-blood and a custom-developed cine black-blood using spatial saturation bands). The results were compared with high resolution digital photography (HRDP) assumed to be the gold-standard. Cine black-blood best agreed with HRDP (rms deviation = 0.011mm) with cine phase data the worst (rms deviation = 0.113mm) resulting in a 26% underestimation of the distensibility coefficient compared to black-blood.