Figure 1.

Main steps of a right anterior basilar subsegmenectomy of segments 7+8. A. Three-dimensional reconstruction of arteries and bronchi; B. a loop is passed around the main basilar arterial trunk and helps exposure of the arterial branches; C. after division of the artery to the anterior segments, backward traction of the loop helps exposing the bronchus to segments 7+8; D. segmental distribution of the branches of the right lower pulmonary vein. (A, artery; B, bronchus; V, vein; S, segment).