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Figure 1 | Journal of Cardiovascular Magnetic Resonance

Figure 1

From: Systemic-to-pulmonary collateral flow in patients with palliated univentricular heart physiology: measurement using cardiovascular magnetic resonance 4D velocity acquisition

Figure 1

Scheme of systemic and pulmonary circulation. (A) Normal physiology: The virtual network connections are present but are not permeable. (B) Collateral circulation: There is a shunt network between the systemic and the pulmonary circulation. These shunting connections are 1) the aortopulmonary collaterals (between the bronchial artery and the pulmonary artery), 2) the veno-venous collaterals (between the bronchial vein and the pulmonary vein) and 3) the arterio-venous shunts (direct connections between the bronchial artery and vein bypassing the capillary network). Adapted from Heimburg P[4], copyright notice 2011, with permission from BMJ Publishing Group Ltd.

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