Anatomical analysis of the left upper lobe of lung on three-dimensional images with focusing the branching pattern of the subsegmental veins

Table 1 The numbers of patients with the various combinations of branching patterns of the pulmonary arteries and the bronchi according to Yamashita’s classification [18] in the left upper lobes (LUL)

The bronchial branching patterns were sorted three types; apico-anterior extension, subapico-anterior extension, and anterior extension types. The letter “1 + 2” in the illustrations means the apicoposterior segment, the letter “3” anterior segment and the letter “4” upper lingual segment of LUL. M- and IL-types indicate LUL having lingular pulmonary artery all or partly from pars mediastinalis, and lingular pulmonary artery all from pars inter lobaris, respectively. The numbers having superscripts ^“a” and ^“b” are significantly higher and lower than the theoretical numbers, respectively. *, p < 0.05 (Chi-square test)

ISSN: 1749-8090