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Vol.48 No.6 contents

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- The 22nd Lung Cancer Workshop -

The Segmentation of Mediastinal Lymph Node Stations and Pulmonary Segments

Yuko Tanaka¹, Keisuke Tanaka², Takeshi Johkoh³, Shun-ichi Watanabe⁴, Masahiko Kusumoto⁵, Ryosuke Tsuchiya^4
1Department of Diagnostic and Interventional Radiology, ²Department of Medical Physics, Osaka University Graduate School of Medicine, Japan, ³Department of Radiology, Kinki Central Hospital of Mutual Aid Association of Public School Teachers, Japan, ⁴Division of Thoracic Surgery, ⁵Division of Radiology, National Cancer Center Hospital, Japan

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Multi-slice helical CT technology can provide exact information about the chest structure in a single scanning of procedure. Therefore, development of the algorithm that analyzes lung internal-organs has also been developed. In this review, we present two newly developed software programs using multi-slice CT images and its limitations. The first one is for the segmentation of mediastinal lymph node stations from contrast-enhanced chest CT scans which was useful for evaluation of the effects for various therapies, surgical planning, educational tool and diagnostic imaging. The second one is for the segmentation of pulmonary segments which was used before lung operation for small lung cancers.
key words: Lung cancer, Mediastinal lymph node, Pulmonary segments, Multi-slice CT

JJLC 48 (6): 754-758, 2008