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Figure 2 | Journal of Cardiovascular Magnetic Resonance

Figure 2

From: Method for calculating confidence intervals for phase contrast flow measurements

Figure 2

A comparison of the proposed method and a true repeated measures experiment in a static phantom. The static phantom and phase difference image is depicted in the top part of the figure and the curves (bottom) show the instantaneous flow rates calculated for the ten simulated cardiac phases. The gray shaded area around the flow curve indicates the 95% (1.96 * σ) confidence interval (CI) predicted by the proposed method and the error bars indicate the 95% CI measured from 100 repeated experiments. Analysis was performed for two different ROI sizes; small ROI is depicted with a dotted line on the images and the large ROI is depicted with a solid line.

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