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. 2022 Sep 15;130(1):e128–e136. doi: 10.1016/j.bja.2022.07.052

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© 2022 The Author(s)

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

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Fig 1 — Summary of wave intensity analysis methodology. a. Cardiovascular MRI, central image display mapping scan for the left and right (operative and non-operative) pulmonary arteries with cross section of each artery displayed on either side. b. Flow Q and area A plots generated after analysis of pulmonary artery. c. Wave intensity (dQ×dA) is plotted by the blue line with the forward compression wave area (FCW; purple) and backward compression wave area (BCW; green) highlighted with calculation of wave reflection index (WRI) demonstrated. Indicative images from patient in study.