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Fig. 2 | BioMedical Engineering OnLine

Fig. 2

From: Numerical analysis of the pressure drop across highly-eccentric coronary stenoses: application to the calculation of the fractional flow reserve

Fig. 2

a Coronary vasculature determined from segmentation of CTA images. b Segmentation of an artery section containing that stenosis. (c y d) Representation of the stenosis surface with 1034 (c) 12412 triangles (d). The upper image corresponds to the maximum resolution available when the entire fluid domain is considered. The CTA images were provided by the Hospital Infanta Cristina in Badajoz (Spain). They were obtained from a 64 detectors scanner (LightSpeed VCT, General Electric Medical Systems, Milwauke, WI, USA) using the retrospective cardiac reconstruction method (SnapShot Segment Mode) with the following acquisition parameters: slice thickness 0.625 mm, rotation time 0.4 s, tube voltaje 120 kV, collimation 0.625 mm and a pitch of 0.18, 0.20, 0.23 or 0.26 (automatically set by the software depending on the patient’s heart rate)

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