Blar i SINTEF Open på forfatter "Leira, Håkon Olav"

Viser treff 1-9 av 9

    • A multimodal image guiding system for Navigated Ultrasound Bronchoscopy (EBUS): A human feasibility study 

      Sorger, Hanne; Hofstad, Erlend Fagertun; Amundsen, Tore; Langø, Thomas; Bakeng, Janne Beate Lervik; Leira, Håkon Olav (Journal article; Peer reviewed, 2017)
      Background Endobronchial ultrasound transbronchial needle aspiration (EBUS-TBNA) is the endoscopic method of choice for confirming lung cancer metastasis to mediastinal lymph nodes. Precision is crucial for correct ...

    • A new procedure for automatic path planning in bronchoscopy 

      Ciobirca, C; Langø, Thomas; Gruionu, G; Leira, Håkon Olav; Gruionu, Lucian; Pastrama, SD (Journal article; Peer reviewed, 2018)
      Virtual bronchoscopy is often used for planning a real bronchoscopy procedure. Software applications are developed for virtual bronchoscopy, involving usually segmentation of the tracheobronchial tree from the medical image ...

    • Accuracy of electromagnetic tracking with a prototype field generator in an interventional OR setting 

      Bø, Lars Eirik; Leira, Håkon Olav; Tangen, Geir Arne; Hofstad, Erlend Fagertun; Amundsen, Tore; Langø, Thomas (Journal article; Peer reviewed, 2012)
      Purpose: The authors have studied the accuracy and robustness of a prototype electromagnetic window field generator (WFG) in an interventional radiology suite with a robotic C-arm. The overall purpose is the development ...

    • Airway segmentation and centerline extraction from thoracic CT - Comparison of a new method to state of the art commercialized methods 

      Reynisson, Pall Jens; Scali, Marta; Smistad, Erik; Hofstad, Erlend Fagertun; Leira, Håkon Olav; Lindseth, Frank; Hernes, Toril A. Nagelhus; Amundsen, Tore; Sorger, Hanne; Langø, Thomas (Journal article; Peer reviewed, 2015)
      Introduction Our motivation is increased bronchoscopic diagnostic yield and optimized preparation, for navigated bronchoscopy. In navigated bronchoscopy, virtual 3D airway visualization is often used to guide a bronchoscopic ...

    • Intraoperative localized constrained registration in navigated bronchoscopy 

      Hofstad, Erlend Fagertun; Sorger, Hanne; Bakeng, Janne Beate Lervik; Gruionu, Lucian; Leira, Håkon Olav; Amundsen, Tore; Langø, Thomas (Journal article; Peer reviewed, 2017)
      Purpose One of the major challenges in electromagnetic navigated bronchoscopy is the navigation accuracy. An initial rigid image-to-patient registration may not be optimal for the entire lung volume, as the lung tissue ...

    • Mediastinal lymph nodes segmentation using 3D convolutional neural network ensembles and anatomical priors guiding 

      Bouget, David Nicolas Jean-Mar; Pedersen, André; Vanel, Johanna; Leira, Håkon Olav; Langø, Thomas (Peer reviewed; Journal article, 2022)
      As lung cancer evolves, the presence of potentially malignant lymph nodes must be assessed to properly estimate disease progression and select the best treatment strategy. A method for accurate and automatic segmentation ...

    • A novel clip-on device for electromagnetic tracking in endobronchial ultrasound bronchoscopy 

      Kildahl-Andersen, Arne; Hofstad, Erlend Fagertun; Peters, Karlijn; Van Beek, Gregory; Sorger, Hanne; Amundsen, Tore; Langø, Thomas; Leira, Håkon Olav (Peer reviewed; Journal article, 2022)
      Introduction: The established method for assessment of mediastinal and hilar lymph nodes is endobronchial ultrasound bronchoscopy (EBUS) with needle aspirations. Previously, we presented an electromagnetic navigation ...

    • Pulmonologist evaluation on new CT visualization for guidance to lung lesions during bronchoscopy 

      Reynisson, Pall Jens; Leira, Håkon Olav; Langø, Thomas; Tangen, Geir Arne; Hatlen, Peter; Amundsen, Tore; Hofstad, Erlend Fagertun (Journal article; Peer reviewed, 2018)
      Translator disclaimer  Full Article  Figures & data References  Citations Metrics  Reprints & Permissions Get access Abstract Objective: Endoluminal visualization in virtual and video bronchoscopy lacks information ...

    • Using the CustusX toolkit to create an image guided bronchoscopy application: Fraxinus 

      Bakeng, Janne Beate Lervik; Hofstad, Erlend Fagertun; Solberg, Ole Vegard; Eiesland, Jon Wostryck; Tangen, Geir Arne; Amundsen, Tore; Langø, Thomas; Reinertsen, Ingerid; Selbekk, Tormod; Leira, Håkon Olav (Journal article; Peer reviewed, 2019)
      Purpose The aim of this paper is to show how a specialized planning and guidance application called Fraxinus, can be built on top of the CustusX platform (www.custusx.org), which is an open source image-guided intervention ...