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Updated: Aug 15, 2026
X-ray Dose Reduction through Adaptive Exposure in Fluoroscopic Imaging
Published on: September 11, 2011
Portable flat-panel detector for low-dose imaging in a pediatric intensive care unit: comparison with an asymmetric
Ulrike Rapp-Bernhardt1, Friedrich-Wilhelm Roehl, Rainer Esseling
1Department of Clinical Radiology, Section of Pediatric Radiology, University of Muenster, Muenster, Germany. bernhardt@uni-muenster.de
Objective:
We sought to evaluate the diagnostic performance of a portable indirect flat-panel detector for low-dose imaging as compared with an asymmetric film-screen system in a pediatric intensive care unit.
Materials And Methods:
A total of 120 neonates underwent chest radiographs using a portable flat-panel detector (digital speed 800) and an asymmetric film-screen system (400 speed). Four readers evaluated the detection of 11 anatomic and 5 pathologic landmarks and 4 support devices. Statistical analysis was performed using repeated analysis of variance. The level of statistical significance was P = 0.05.
Results:
The detection of 4 anatomic/4 pathologic landmarks and 2 support devices was significantly better using the flat-panel detector as compared with the asymmetric film-screen system (P < 0.05). Another 8 anatomic and one pathologic landmarks were detected equally well or slightly better with the flat-panel detector (P > 0.05).
Conclusions:
The portable flat-panel detector offers the potential of a 50% dose reduction with equal or significantly better detection of clinically important structures.
