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Methods: This study was conducted on 123 consecutive patients with esophageal cancers undergoing transhiatal esophagectomy from March 2001 to February 2005. Chest tube insertion was performed according to our defined criteria. Thoracostomy tube would be inserted...

Computer-aided Diagnosis (CAD) systems can assist radiologists in several diagnostic tasks. Lung segmentation is one of the mandatory steps for initial detection of lung cancer in Posterior-Anterior chest radiographs. On the other hand, many CAD...