(A) Chest X-ray shows very subtle nodular opacities ... (B) CT scan shows the lower lobe airspace opacities with vague tree-in-bud morphology (box) and an area of consolidation (arrow).

In denoised ULDCT images, fine details were better visualized: tree-in-bud pattern (accuracy ... "Our suggested method to denoise images obtained at chest ULDCT scans significantly reduced ...