Preliminary clinical studies suggest that spiral computed tomography (CT) of the lungs can
improve early detection of lung cancer in high-risk individuals. More clinical studies are
needed, however, before public health recommendations can be proposed for population-
based screening. Spiral CT generates large-volume data sets and thus poses problems in
terms of implementation of efficient and cost-effective screening methods. Image processing
algorithms such as computer assisted diagnostic (CAD) methods have the potential to assist …