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- Title:
Simultaneous wood and metal particle detection on dark-field radiography.
- Document type:
- Journal Article
- Author(s):
- Braig, Eva-Maria; Birnbacher, Lorenz; Schaff, Florian; Gromann, Lukas; Fingerle, Alexander; Herzen, Julia; Rummeny, Ernst; Noël, Peter; Pfeiffer, Franz; Muenzel, Daniela
- 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 ?m 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.
- Journal title abbreviation:
- Eur Radiol Exp
- Year:
- 2018
- Journal volume:
- 2
- Journal issue:
- 1
- Pages contribution:
- 1
- Fulltext / DOI:
- doi:10.1186/s41747-017-0034-1
- Pubmed ID:
- http://view.ncbi.nlm.nih.gov/pubmed/29708215
- TUM Institution:
- Institut für Diagnostische und Interventionelle Radiologie
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