A system and method for automatically reducing false-positive nodule candidates associated with airways includes receiving a nodule candidate, testing for airway cavities connected to the candidate, and recognizing the candidate as a false-positive nodule candidate if it is connected to an airway cavity;...http://www.google.com.hk/patents/US7203349?utm_source=gb-gplus-share專利 US7203349 - Bronchial wall thickening recognition for reduced false-positives in pulmonary nodule detection
