Reliability and Accuracy of Peri-Interventional Stenosis Grading in Peripheral Artery Disease Using Color-Coded Quantitative Fluoroscopy: A Phantom Study Comparing a Clinical and Scientific Postprocessing Software

Figure 4

(a) Results of the flow measurements without stenosis analyzed with ImageJ. Contrast intensity curves are created for ROIs I to IV. (b) Results of the flow measurements with 80% stenosis analyzed with ImageJ. Contrast intensity curves are created for ROIs I to IV. (c) Results of the flow measurements without stenosis analyzed with iFlow. Contrast intensity curves are created for ROIs II to IV and the reference ROI (ROI I). (d) Results of the flow measurements with 80% stenosis analyzed with iFlow. Contrast intensity curves are created for ROIs II to IV and the reference ROI (ROI I). The same dataset for the 80% stenosis and without stenosis was used for flow measurements.

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