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Pulmonary Vein Index (PVI)
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Designed to determine the predictive value of PVI for early outcomes
among surgical treatment of TOF patients.
PVI = LPV − A + RPV – A / Body Surface Area (BSA)
(m2) /mm2/m2
The area of the Pas is measured at the proximal point of the first
branch. The area of the PVs (LPV-A, RPV-A) is measured 3 mm. beyond the
pulmonary venous ostium.
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