Fig. 1From: Sphericity of lymph nodes using 3D-CT predicts metastasis in lung cancer patientsProcedure for extraction of a target lymph node. Figure A: representative CT image from the metastatic group with peritracheal nodal metastasis. Figure B: the target lymph node was automatically separated by manual dragging of the long-axis diameter. Figure C and D: extracted target lymph node seen from the axial and coronal CT planesBack to article page