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AuthorDe Jong, Marceldc.contributor.author
Date of accession2016-03-15T10:40:04Zdc.date.accessioned
Available in OPARU since2016-03-15T10:40:04Zdc.date.available
Year of creation2015dc.date.created
AbstractThe presented work provides a contribution to the field of computer-assisted catheter reconstruction and tracking on fluoroscopy sequences. During a minimally invasive catheter ablation intervention, various catheters are navigated inside the heart under display of two-dimensional X-ray image sequences. The physician is faced with the challenge of properly reconstructing the spatial position of the catheters in his mind. If the geometry of the fluoroscopy system and the positions of the catheter projections in the two image planes are known, the automatic determination of the spatial position of the catheter becomes possible by triangulation. This results in applications such as the direct 3D representation of the procedure and the measurement of the cardiac motion. Overall, the support of the catheter ablation intervention in this form has the potential to simplify, speed up, improve and assure the quality of the procedure. In the presented work, two novel approaches are being investigated for this purpose. They allow a temporal tracking and spatial reconstruction of the catheter using image processing algorithms. The first approach is based on the detection of the catheter tip in the image using a template-matching method and the temporal tracking of its three-dimensional reconstruction by a model-based state filtering method. The special image acquisition situation is dealt with by an implicit triangulation in the state filter. The temporal tracking and spatial reconstruction of a longer course of the catheter body is solved in the second approach by an iterative curve deformation method. In addition, a novel approach to simplify the initialization of the tracking algorithms is presented based on the curve deformation algorithm. The evaluation of the algorithms on a collection of several patient records as well as on simulations show an acceptable accuracy of reconstruction and robustness of the catheter tracking for clinical practise.dc.description.abstract
Languagededc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseStandard (ohne Print-On-Demand)dc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_opod_v1dc.rights.uri
KeywordKatheternavigationdc.subject
Dewey Decimal GroupDDC 620 / Engineering & allied operationsdc.subject.ddc
MeSHArrhythmias, cardiacdc.subject.mesh
MeSHCatheter ablationdc.subject.mesh
MeSHImage processing, computer-assisteddc.subject.mesh
MeSHSurgery, computer-assisteddc.subject.mesh
TitleDreidimensionale Rekonstruktion und Verfolgung von Elektrophysiologiekathetern aus asynchronen biplanaren Fluoroskopiebildsequenzendc.title
Resource typeDissertationdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-3239dc.identifier.doi
PPN1657059596dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-vts-95722dc.identifier.urn
GNDArrhythmiedc.subject.gnd
GNDBildverarbeitungdc.subject.gnd
GNDDreidimensionale Rekonstruktiondc.subject.gnd
GNDFluoroskopiedc.subject.gnd
GNDKatheterdc.subject.gnd
GNDMedizintechnikdc.subject.gnd
GNDObjektverfolgungdc.subject.gnd
FacultyFakultät für Ingenieurwissenschaften und Informatikuulm.affiliationGeneral
Date of activation2015-06-15T12:23:08Zuulm.freischaltungVTS
Peer reviewneinuulm.peerReview
Shelfmark print versionW: W-H 14.039uulm.shelfmark
DCMI TypeTextuulm.typeDCMI
VTS-ID9572uulm.vtsID
CategoryPublikationenuulm.category
Ulm seriesSchriftenreihe des Instituts für Mess-, Regel- und Mikrotechnikuulm.dissSeriesUlmName
Ulm series - number13uulm.dissSeriesUlmNumber
University Bibliographyjauulm.unibibliographie


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