Keil, Matthias ; Oyarzun Laura, Cristina ; Drechsler, Klaus ; Wesarg, Stefan (2012)
Combining B-Mode and Color Flow Vessel Segmentation for Registration of Hepatic CT and Ultrasound Volumes.
Eurographics Workshop on Visual Computing for Biology and Medicine.
doi: 10.2312/VCBM/VCBM12/057-064
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Multimodal registration of intraoperative ultrasound and preoperative computed tomography imaging is the basis for percutaneous hepatic interventions. Currently, a rigid registration is performed manually by the surgeon using vessel structures and other anatomical landmarks for visual guidance. In this work our approach for intraoperative vessel segmentation from two ultrasound imaging modes, namely B-Mode and color flow mode, is presented. This segmentation is an important step for automation of the intraoperative registration which relies on vessel structures visible in contrast enhanced CT and ultrasound volumes. This paper describes the problems that arise when using B-mode ultrasound for segmentation of vessels and how they can be solved by introducing additional vessel information from color flow imaging. On a total number of 21 patients, our system was applied successfully in 15 cases. For nine randomly chosen patients studied in this paper, our system achieves a 3.45 mm accuracy at points used for registration and 5.01 mm for other landmarks which were not used for the registration process.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Keil, Matthias ; Oyarzun Laura, Cristina ; Drechsler, Klaus ; Wesarg, Stefan |
| Art des Eintrags: | Bibliographie |
| Titel: | Combining B-Mode and Color Flow Vessel Segmentation for Registration of Hepatic CT and Ultrasound Volumes |
| Sprache: | Englisch |
| Publikationsjahr: | 2012 |
| Verlag: | Eurographics Association, Goslar |
| Veranstaltungstitel: | Eurographics Workshop on Visual Computing for Biology and Medicine |
| DOI: | 10.2312/VCBM/VCBM12/057-064 |
| Kurzbeschreibung (Abstract): | Multimodal registration of intraoperative ultrasound and preoperative computed tomography imaging is the basis for percutaneous hepatic interventions. Currently, a rigid registration is performed manually by the surgeon using vessel structures and other anatomical landmarks for visual guidance. In this work our approach for intraoperative vessel segmentation from two ultrasound imaging modes, namely B-Mode and color flow mode, is presented. This segmentation is an important step for automation of the intraoperative registration which relies on vessel structures visible in contrast enhanced CT and ultrasound volumes. This paper describes the problems that arise when using B-mode ultrasound for segmentation of vessels and how they can be solved by introducing additional vessel information from color flow imaging. On a total number of 21 patients, our system was applied successfully in 15 cases. For nine randomly chosen patients studied in this paper, our system achieves a 3.45 mm accuracy at points used for registration and 5.01 mm for other landmarks which were not used for the registration process. |
| Freie Schlagworte: | Business Field: Digital society, Research Area: Confluence of graphics and vision, Vessel segmentation, Rigid registration, Ultrasound, Computed tomography (CT), Liver |
| 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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