Depth Sensor-Based Realtime Tumor Tracking for Accurate Radiation Therapy

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dc.contributor.authorNutti, Björnen_US
dc.contributor.authorKronander, Åsaen_US
dc.contributor.authorNilsing, Mattiasen_US
dc.contributor.authorMaad, Kristoferen_US
dc.contributor.authorSvensson, Cristinaen_US
dc.contributor.authorLi, Haoen_US
dc.contributor.editorEric Galin and Michael Wanden_US
dc.date.accessioned2014-12-16T07:11:03Z
dc.date.available2014-12-16T07:11:03Z
dc.date.issued2014en_US
dc.description.abstractWe present an image guided radiation therapy (IGRT) system for tracking tumors in realtime based on continuous structured light imaging. While an accurate positioning of the radiation isocenter to pre-imaged cancer cells is critical to minimize the risk of damaging healthy tissues, patients undergo involuntary motions such as breathing or unpredictable gestures during treatment. Moreover, multiple sessions are typically necessary and repositioning the patient accurately can be difficult. Our approach consists of determining the tumor position by densely tracking the deformation of a stream of 3D scans using a realtime variant of a state-of-the-art non-rigid registration algorithm and an FEM simulation on the interior body. We use interactive reprojection for visual guidance to adjust the posture of the patient and couch position, depending on the tumor location. Compared to existing techniques, our method uniquely estimates tumor deviations under body deformations. Our pipeline has been successfully commercialized as part of the C-RAD AB CatalystTM product line and is already deployed in a number of hospitals.en_US
dc.description.seriesinformationEurographics 2014 - Short Papersen_US
dc.identifier.issn1017-4656en_US
dc.identifier.urihttps://doi.org/10.2312/egsh.20141000en_US
dc.publisherThe Eurographics Associationen_US
dc.titleDepth Sensor-Based Realtime Tumor Tracking for Accurate Radiation Therapyen_US
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