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Fig 3. Stenosis values for CTA, CE-MRA, and TOF-MRA evaluated with the MPR method are represented graphically in scatter plots (upper row) and Bland-Altman-plots (lower row). Confidence intervals of the difference in stenosis values are given as gray bands. Highest agreement is found for CTA and TOF-MRA. In cases of local signal loss, the grade of stenosis was assigned as 90%.
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