In denoised ULDCT images, fine details were better visualized: tree-in-bud pattern (accuracy, 93 versus 78 to 80 percent), interlobular septal thickening (accuracy, 78 to 83 versus 61 to 67 ...

Chest x-ray demonstrated a sensitivity of 66.7% and a specificity of 100%, while low-dose CT demonstrated 100% sensitivity and 100% specificity for an overall accuracy of 100%.

A 57-year-old man with polyarteritis nodosa was evaluated for cough and pulmonary opacities. Chest CT revealed multifocal clustered centrilobular nodules and opacities in a tree-in-bud pattern. A g ...