Q&A: Lowering radiation dose in chest X-ray imaging yields same accuracy, researcher finds
A doctoral thesis suggests that digital chest tomosynthesis (DTS) can provide high-quality diagnostic images for lung conditions while using significantly less radiation than CT scans. The study indicates that optimized protocols maintain accuracy while reducing radiation exposure by up to 30%.
Why it matters
Reducing radiation exposure in medical imaging improves patient safety during routine screenings and follow-ups for lung diseases.
edited by Gaby Clark , reviewed by Alexander Pol
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Add as preferred source Illustration of the tomography technique. During exposure, the X-ray film records image data as the X-ray tube moves from one end of the table to the other, producing a single exposure image (image A). Credit: (2026). DOI: 10.69622/32261142 Digital tomosynthesis (DTS) is an X-ray technique that provides sectional images with better lesion visibility than conventional chest radiography (CXR), while using far less radiation than CT. Masoud Jadidi will defend his thesis, "Evaluation of image quality, radiation dose, and tumor size assessment in chest tomosynthesis," on Aug. 21, 2026. His thesis evaluates digital thoracic tomosynthesis as a low-dose method in thoracic radiology.
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