Figure E3.

Adjustment of the resection line in right S6 segmentectomy. A, CT suggested a pure ground-glass opacity lesion (12 mm) in S6c. B and C, Preoperative 3D-CT simulation showed the virtual surgical margin from the target to the simulated intersegmental plane was 0.3 mm and an RFID marker was placed 2 mm caudal to the target (white circle: RFID marker, pink mark: target). D and E, ICG demarcation line demonstrated the RFID marker was outside the undyed area, and the marker was identified 10 mm caudal to the ICG demarcated line on the visceral pleura (white arrow: RFID marker, yellow triangle: ICG line). F, The resection line was adjusted according to the marker, and the lesion was removed with a surgical margin of 15 mm (white arrow: RFID marker, pink arrow: tumor).