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Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy.

Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy. Research Abstract Details 

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  • Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy. Abstract Text:

    robert krempienRobert Krempien,harald hoppeHarald Hoppe,lüder kahrsLüder Kahrs,sascha daeuberSascha Daeuber,oliver schorrOliver Schorr,georg eggersGeorg Eggers,marc bischofMarc Bischof,marc w munterMarc W Munter,juergen debusJuergen Debus,wolfgang harmsWolfgang Harms,robert krempienRobert Krempien,harald hoppeHarald Hoppe, kahrs Kahrs,sascha daeuberSascha Daeuber,oliver schorrOliver Schorr,georg eggersGeorg Eggers,marc bischofMarc Bischof,marc w munterMarc W Munter,juergen debusJuergen Debus,wolfgang harmsWolfgang Harms,

    PURPOSE: The aim of this study is to implement augmented reality in real-time image-guided interstitial brachytherapy to allow an intuitive real-time intraoperative orientation. METHODS AND MATERIALS: The developed system consists of a common video projector, two high-resolution charge coupled device cameras, and an off-the-shelf notebook. The projector was used as a scanning device by projecting coded-light patterns to register the patient and superimpose the operating field with planning data and additional information in arbitrary colors. Subsequent movements of the nonfixed patient were detected by means of stereoscopically tracking passive markers attached to the patient. RESULTS: In a first clinical study, we evaluated the whole process chain from image acquisition to data projection and determined overall accuracy with 10 patients undergoing implantation. The described method enabled the surgeon to visualize planning data on top of any preoperatively segmented and triangulated surface (skin) with direct line of sight during the operation. Furthermore, the tracking system allowed dynamic adjustment of the data to the patient's current position and therefore eliminated the need for rigid fixation. Because of soft-part displacement, we obtained an average deviation of 1.1 mm by moving the patient, whereas changing the projector's position resulted in an average deviation of 0.9 mm. Mean deviation of all needles of an implant was 1.4 mm (range, 0.3-2.7 mm). CONCLUSIONS: The developed low-cost augmented-reality system proved to be accurate and feasible in interstitial brachytherapy. The system meets clinical demands and enables intuitive real-time intraoperative orientation and monitoring of needle implantation.

    Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy. Publishing Authors By Initials

    r krempienR Krempien,h hoppeH Hoppe,l kahrsL Kahrs,s daeuberS Daeuber,o schorrO Schorr,g eggersG Eggers,m bischofM Bischof,mw munterMW Munter,j debusJ Debus,w harmsW Harms,r krempienR Krempien,h hoppeH Hoppe,l kahrsL Kahrs,s daeuberS Daeuber,o schorrO Schorr,g eggersG Eggers,m bischofM Bischof,mw munterMW Munter,j debusJ Debus,w harmsW Harms,

    For similar abstracts research abstracts see: abstracts research

    PUBMED ID PMID:

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    Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy. Journal Published:

    PUBLICATION TYPE: Journal Article

    Journal: International journal of radiation oncology, biolo

    VOLUME: 70

    Page Numbers: 944-52

    Journal Abbreviation: Int. J. Radiat. Oncol. Biol. P

    ISSN: 0360-3016

    DAY: 31

    MONTH: 12

    YEAR: 2007

    Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy. Information

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    LANGUAGE: eng

    NlmUniqueID: 7603616

    Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy. Keywords Mesh Terms:

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    Grant and Affiliation Information for Projector-Based Augmented Reality for Intuitive Intraoperative Guidance in Image-Guided 3D Interstitial Brachytherapy.

    AFFILIATION: Department of Radiation Oncology, University of Heidelberg, Heidelberg, Germany.

    Country: United States

    United States Research PublicationUnited States Research Publication

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    MEDLINETA: Int J Radiat Oncol Biol Phys

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