Title |
Simultaneous wood and metal particle detection on dark-field radiography
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Published in |
European Radiology Experimental, January 2018
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DOI | 10.1186/s41747-017-0034-1 |
Pubmed ID | |
Authors |
Eva-Maria Braig, Lorenz Birnbacher, Florian Schaff, Lukas Gromann, Alexander Fingerle, Julia Herzen, Ernst Rummeny, Peter Noël, Franz Pfeiffer, Daniela Muenzel |
Abstract |
Currently, the detection of retained wood is a frequent but challenging task in emergency care. The purpose of this study is to demonstrate improved foreign-body detection with the novel approach of preclinical X-ray dark-field radiography. At a preclinical dark-field x-ray radiography, setup resolution and sensitivity for simultaneous detection of wooden and metallic particles have been evaluated in a phantom study. A clinical setting has been simulated with a formalin fixated human hand where different typical foreign-body materials have been inserted. Signal-to-noise ratios (SNR) have been determined for all test objects. On the phantom, the SNR value for wood in the dark-field channel was strongly improved by a factor 6 compared to conventional radiography and even compared to the SNR of an aluminium structure of the same size in conventional radiography. Splinters of wood < 300 μm in diameter were clearly detected on the dark-field radiography. Dark-field radiography of the formalin-fixated human hand showed a clear signal for wooden particles that could not be identified on conventional radiography. x-ray dark-field radiography enables the simultaneous detection of wooden and metallic particles in the extremities. It has the potential to improve and simplify the current state-of-the-art foreign-body detection. |
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Panama | 1 | 10% |
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Researcher | 4 | 15% |
Student > Master | 3 | 11% |
Student > Doctoral Student | 2 | 7% |
Lecturer > Senior Lecturer | 2 | 7% |
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Unknown | 6 | 22% |
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Materials Science | 2 | 7% |
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Other | 0 | 0% |
Unknown | 10 | 37% |