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. 2022 Jun 16;3(5):526–535. doi: 10.1016/j.hroo.2022.06.004

Figure 2.

Figure 2

A: Reference points for the location of zone borders around the left (shaded circles A–D) and right (shaded circles E–H) pulmonary veins (PVs). Circle A: LSPV roof and anterior border; circle B: LSPV roof and posterior border; circle C: LIPV floor and posterior border; circle D: LIPV floor and anterior border; circle E: RSPV roof and posterior border; circle F: RSPV roof and anterior border; circle G: RIPV floor and anterior border; circle H: RIPV floor and posterior border. B: Numbered anatomical zones around the PVs. LIPV = left inferior pulmonary vein; LSPV = left superior pulmonary vein; RIPV = right inferior pulmonary vein; RSPV = right superior pulmonary vein.