Wesarg, Stefan ; Erdt, Marius ; Kafchitsas, Konstantinos ; Khan, M. Fawad (2011)
Direct Visualization of Regions with Lowered Bone Mineral Density in Dual-Energy CT Images of Vertebrae.
Medical Imaging 2011: Computer-Aided Diagnosis. Part Two.
doi: 10.1117/12.878130
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Dual-energy CT allows for a better material differentiation than conventional CT. For the purpose of osteoporosis diagnosis, a detection of regions with lowered bone mineral density (BMD) is of high clinical interest. Based on an existing biophysical model of the trabecular bone in vertebrae a new method for directly highlighting those low density regions in the image data has been developed. For this, we combine image data acquired at 80 kV and 140 kV with information about the BMD range in different vertebrae and derive a method for computing a color enhanced image which clearly indicates low density regions. An evaluation of our method which compares it with a quantitative method for BMD assessment shows a very good correspondence between both methods. The strength of our method lies in its simplicity and speed.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2011 |
| Autor(en): | Wesarg, Stefan ; Erdt, Marius ; Kafchitsas, Konstantinos ; Khan, M. Fawad |
| Art des Eintrags: | Bibliographie |
| Titel: | Direct Visualization of Regions with Lowered Bone Mineral Density in Dual-Energy CT Images of Vertebrae |
| Sprache: | Englisch |
| Publikationsjahr: | 2011 |
| Verlag: | SPIE Press, Bellingham |
| Reihe: | Proceedings of SPIE; 7963 |
| Veranstaltungstitel: | Medical Imaging 2011: Computer-Aided Diagnosis. Part Two |
| DOI: | 10.1117/12.878130 |
| Kurzbeschreibung (Abstract): | Dual-energy CT allows for a better material differentiation than conventional CT. For the purpose of osteoporosis diagnosis, a detection of regions with lowered bone mineral density (BMD) is of high clinical interest. Based on an existing biophysical model of the trabecular bone in vertebrae a new method for directly highlighting those low density regions in the image data has been developed. For this, we combine image data acquired at 80 kV and 140 kV with information about the BMD range in different vertebrae and derive a method for computing a color enhanced image which clearly indicates low density regions. An evaluation of our method which compares it with a quantitative method for BMD assessment shows a very good correspondence between both methods. The strength of our method lies in its simplicity and speed. |
| Freie Schlagworte: | Forschungsgruppe Medical Computing (MECO), Business Field: Digital society, Research Area: Confluence of graphics and vision, Medical visualization, Computed tomography (CT), Diagnostic imaging, Bone mineral density (BMD), Dual-energy CT, Bone mineral density, Osteoporosis |
| Fachbereich(e)/-gebiet(e): | 20 Fachbereich Informatik 20 Fachbereich Informatik > Graphisch-Interaktive Systeme |
| Hinterlegungsdatum: | 12 Nov 2018 11:16 |
| Letzte Änderung: | 12 Nov 2018 11:16 |
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