Li W, et al. - Chest CT data of 221 patients with pulmonary nodules were retrospectively analyzed by the experts to examine the impact of slab thickness on the detection of pulmonary nodules by use of maximum-intensity-projection (MIP) and minimum-intensity-projection (MinIP) to process CT images. Among the various series of images, interobserver agreements for identifying nodules were all good to excellent. Detection rates on 10 mm MIP images were significantly greater than in other series of images for total solid nodules (SNs) and SNs with a diameter < 5 mm. In comparison with those in other series of images, detection rates on 3 mm MinIP images were significantly greater for total subsolid nodules (SSNs) and SSNs < 5 mm, except for 1 mm. Thus, for detecting SNs, 10 mm MIP images are remarkably effective. For visualizing SSNs, 3 mm MinIP images are more beneficial, the capability being similar to that attained by the use of 1-mm axial images.