图1：轴位增强CT图像代表基于JART CT的纵隔室分类。 JART：日本胸腺研究协会; LBCV，左侧头臂静脉; ITAV，胸内动脉和静脉; SVC，上腔静脉; RSPV，右上肺静脉; LSPV，左上肺静脉; RIPV，右下肺静脉; LIPV，左下肺静脉; M-PBL，中后边界线（距胸椎椎体前缘1cm处的垂直连接）

Fig. 1  Axial contrast-enhanced CT images representing the JART CT-based mediastinal compartment classification [7]. JART: The Japanese Association for Research on the Thymus; LBCV, left brachiocephalic vein; ITAV, internal thoracic arteries and veins; SVC, superior vena cava; RSPV, right superior pulmonary vein; LSPV, left superior pulmonary vein; RIPV, right inferior pulmonary vein; LIPV, left inferior pulmonary vein; M-PBL, middle-posterior boundary line (a vertical line connecting a point on each thoracic vertebral body at 1 cm behind its anterior margin)