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Detection of Urinary Stones at Reduced Radiation Exposure: A Phantom Study Comparing Computed Radiography and a Low-Dose Digital Radiography Linear Slit Scanning System

¹ Department of Diagnostic, Interventional and Paediatric Radiology, Inselspital, Berne University Hospital and University of Berne, Freiburgstrasse 4. Berne, CH-3010, Switzerland.
² Imaging Research, Department of Radiology, University of Pittsburgh, Pittsburgh PA.

OBJECTIVE. In this experimental study we assessed the diagnostic performance of digital linear slit scanning radiography compared with computed radiography (CR) for the detection of urinary calculi in an anthropomorphic phantom imitating patients weighing approximately 58–88 kg.

CONCLUSION. Compared with CR, linear slit scanning radiography is superior for the detection of urinary stones and may be used for pretreatment localization and follow-up at a lower patient exposure.

Keywords: computed radiography • linear slit scanning • radiation protection • radiography • urinary calculi

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