2025

• Ervik, Øyvind; Rødde, Mia; Hofstad, Erlend Fagertun; Tveten, Ingrid; Langø, Thomas; Leira, Håkon Olav. (2025) A New Deep Learning-Based Method for Automated Identification of Thoracic Lymph Node Stations in Endobronchial Ultrasound (EBUS): A Proof-of-Concept Study. Journal of Imaging
  Vitenskapelig artikkel

2024

• Kildahl-Andersen, Arne; Hofstad, Erlend Fagertun; Solberg, Ole Vegard; Sorger, Hanne; Amundsen, Tore; Langø, Thomas. (2024) Navigated ultrasound bronchoscopy with integrated positron emission tomography—A human feasibility study. PLOS ONE
  Vitenskapelig artikkel
• Hansen, Rune; Ervik, Øyvind; Amini, Naseh; Solberg, Stian; Berg, Sigrid; Ayyalasomayajula, Venkat Siva Radha Krishna. (2024) Pulse-Echo Ultrasound for Quantitative Measurements of Two Uncorrelated Elastic Parameters. Ultrasound in Medicine and Biology
  Vitenskapelig artikkel
• Gouliaev, Anja; Berg, Janna; bibi, rana; Arshad, Arman; Leira, Håkon Olav; Neumann, Kirill. (2024) Multi-disciplinary team meetings for lung cancer in Norway and Denmark: results from national surveys and observations with MDT-MODe. Acta Oncologica
  Vitenskapelig artikkel
• Ervik, Øyvind; Tveten, Ingrid; Hofstad, Erlend Fagertun; Langø, Thomas; Leira, Håkon Olav; Amundsen, Tore. (2024) Automatic Segmentation of Mediastinal Lymph Nodes and Blood Vessels in Endobronchial Ultrasound (EBUS) Images Using Deep Learning. Journal of Imaging
  Vitenskapelig artikkel
• Brekken, Reidar; Hofstad, Erlend Fagertun; Solberg, Ole Vegard; Tangen, Geir Arne; Leira, Håkon Olav; Gruionu, Lucian. (2024) Accuracy of instrument tip position using fiber optic shape sensing for navigated bronchoscopy. Medical Engineering and Physics
  Vitenskapelig artikkel
• Støverud, Karen-Helene; Bouget, David Nicolas Jean-Marie; Pedersen, Andre; Leira, Håkon Olav; Amundsen, Tore; Langø, Thomas. (2024) AeroPath: An airway segmentation benchmark dataset with challenging pathology and baseline method. PLOS ONE
  Vitenskapelig artikkel

2023

• Kildahl-Andersen, Arne; Hofstad, Erlend Fagertun; Sorger, Hanne; Amundsen, Tore; Langø, Thomas; Leira, Håkon Olav. (2023) Bronchoscopy using a head-mounted mixed reality device—a phantom study and a first in-patient user experience. Frontiers in Virtual Reality
  Vitenskapelig artikkel

2022

• Kildahl-Andersen, Arne; Hofstad, Erlend Fagertun; Peters, Karlijn; Beek, Gregory Van; Sorger, Hanne; Amundsen, Tore. (2022) A novel clip-on device for electromagnetic tracking in endobronchial ultrasound bronchoscopy. MITAT. Minimally invasive therapy & allied technologies
  Vitenskapelig artikkel
• Bouget, David Nicolas Jean-Mar; Pedersen, André; Vanel, Johanna; Leira, Håkon Olav; Langø, Thomas. (2022) Mediastinal lymph nodes segmentation using 3D convolutional neural network ensembles and anatomical priors guiding. Computer Methods in Biomechanics and Biomedical Engineering: Imaging and Visualization
  Vitenskapelig artikkel

2019

• Bakeng, Janne Beate Lervik; Hofstad, Erlend Fagertun; Solberg, Ole Vegard; Eiesland, Jon Wostryck; Tangen, Geir Arne; Amundsen, Tore. (2019) Using the CustusX toolkit to create an image guided bronchoscopy application: Fraxinus. PLOS ONE
  Vitenskapelig artikkel
• Hinds, Stephen Michael; Jaeger, Herman Alexander; Burke, Richard; O'Sullivan, Brodie; Keane, Joseph; Trauzettel, Fabian. (2019) An open electromagnetic tracking framework applied to targeted liver tumour ablation. International Journal of Computer Assisted Radiology and Surgery
  Vitenskapelig artikkel
• Bouget, David Nicolas Jean-Marie; Jørgensen, Arve; Kiss, Gabriel; Leira, Håkon Olav; Langø, Thomas. (2019) Semantic segmentation and detection of mediastinal lymph nodes and anatomical structures in CT data for lung cancer staging. International Journal of Computer Assisted Radiology and Surgery
  Vitenskapelig artikkel

2018

• Reynisson, Pall Jens; Leira, Håkon Olav; Langø, Thomas; Tangen, Geir Arne; Hatlen, Peter; Amundsen, Tore. (2018) Pulmonologist evaluation on new CT visualization for guidance to lung lesions during bronchoscopy. MITAT. Minimally invasive therapy & allied technologies
  Vitenskapelig artikkel
• Ciobirca, C; Langø, Thomas; Gruionu, G; Leira, Håkon Olav; Gruionu, Lucian; Pastrama, SD. (2018) A new procedure for automatic path planning in bronchoscopy. Materials Today: Proceedings
  Vitenskapelig artikkel
• Kennedy, Marcus P; Jaeger, Herman Alexander; Trauzettel, Fabian; Nardelli, Pietro; Davrieux, Carlos Federico; Hofstad, Erlend Fagertun. (2018) ENDOBRONCHIAL TUMOR TARGETING USING A NOVEL ALIGNMENT OF AN OPEN-SOURCE VIRTUAL BRONCHOSCOPY PLATFORM WITH ELECTROMAGNETIC TRACKING: A MULTI-USER PRECLINICAL STUDY. Chest
  Sammendrag/Abstract
• Jaeger, Herman Alexander; Trauzettel, Fabian; Nardelli, Pietro; Daverieux, Federico; Hofstad, Erlend Fagertun; Leira, Håkon Olav. (2018) Peripheral tumour targeting using open-source virtual bronchoscopy with electromagnetic tracking: a multi-user pre-clinical study. MITAT. Minimally invasive therapy & allied technologies
  Vitenskapelig artikkel

2017

• Hofstad, Erlend Fagertun; Sorger, Hanne; Bakeng, Janne Beate Lervik; Gruionu, Lucian; Leira, Håkon Olav; Amundsen, Tore. (2017) Intraoperative localized constrained registration in navigated bronchoscopy. Medical Physics
  Vitenskapelig artikkel
• Ciobirca, Catalin; Gruionu, G; Langø, Thomas; Leira, Håkon Olav; Gruionu, LG; Amundsen, Tore. (2017) An algorithm to obtain a theoretical model of the bronchial tree. Materials Today: Proceedings
  Vitenskapelig artikkel
• Sorger, Hanne; Hofstad, Erlend Fagertun; Amundsen, Tore; Langø, Thomas; Bakeng, Janne Beate Lervik; Leira, Håkon Olav. (2017) A multimodal image guiding system for Navigated Ultrasound Bronchoscopy (EBUS): A human feasibility study. PLOS ONE
  Vitenskapelig artikkel
• Reynisson, Pall Jens; Hofstad, Erlend Fagertun; Leira, Håkon Olav; Askeland, Christian; Langø, Thomas; Sorger, Hanne. (2017) A new visualization method for navigated bronchoscopy. MITAT. Minimally invasive therapy & allied technologies
  Vitenskapelig artikkel

2016

• Sørhaug, Sveinung; Hjelde, Harald Harris; Hatlen, Peter; Leira, Håkon Olav; Salarinejad, Majid; Nesvik, Bjarte. (2016) Learning endobronchial ultrasound transbronchial needle aspiration – a 6-year experience at a single institution. Clinical Respiratory Journal
  Vitenskapelig artikkel
• Ciobirca, Catalin; Popa, Teodoru; Gruionu, Gabriel; Langø, Thomas; Leira, Håkon Olav; Pastrama, SD. (2016) Virtual bronchoscopy method based on marching cubes and an efficient collision detection and resolution algorithm. Ciencia e Tecnologia dos Materiais
  Vitenskapelig artikkel
• Amundsen, Tore; Sørhaug, Sveinung; Leira, Håkon Olav; Tyvold, Stig Sverre; Langø, Thomas; Hammer, Tommy Arild. (2016) A new removable airway stent. European Clinical Respiratory Journal
  Vitenskapelig artikkel

2015

• Leira, Håkon Olav. (2015) E-sigaretter – et viktig virkemiddel mot røykeskader. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Leserinnlegg
• Askeland, Christian; Solberg, Ole Vegard; Bakeng, Janne Beate Lervik; Reinertsen, Ingerid; Tangen, Geir Arne; Hofstad, Erlend Fagertun. (2015) CustusX: an open-source research platform for image-guided therapy. International Journal of Computer Assisted Radiology and Surgery
  Vitenskapelig artikkel
• Hatlen, Peter; Amundsen, Tore; Sørhaug, Sveinung; Leira, Håkon Olav; Müller, Tomm Brostrup; Mahesparan, Rupavathana. (2015) Aggressive Treatment of Brain Metastasis Increases Survival in Patients with Lung Cancer. Journal of Pulmonary and Respiratory Medicine
  Vitenskapelig artikkel
• Sorger, Hanne; Hofstad, Erlend Fagertun; Amundsen, Tore; Langø, Thomas; Leira, Håkon Olav. (2015) A novel platform for electromagnetic navigated ultrasound bronchoscopy (EBUS). International Journal of Computer Assisted Radiology and Surgery
  Vitenskapelig artikkel
• Reynisson, Pall Jens; Scali, Marta; Smistad, Erik; Hofstad, Erlend Fagertun; Leira, Håkon Olav; Lindseth, Frank. (2015) Airway segmentation and centerline extraction from thoracic CT - Comparison of a new method to state of the art commercialized methods. PLOS ONE
  Vitenskapelig artikkel

2014

• Leira, Håkon Olav. (2014) Mye lungekreft - lite forskning :.
  Kronikk
• Reynisson, Pall Jens; Leira, Håkon Olav; Hernes, Toril A. Nagelhus; Hofstad, Erlend Fagertun; Scali, Marta; Sorger, Hanne. (2014) Navigated bronchoscopy : A technical review. Journal of Bronchology & Interventional Pulmonology
  Vitenskapelig oversiktsartikkel/review
• Hofstad, Erlend Fagertun; Sorger, Hanne; Leira, Håkon Olav; Amundsen, Tore; Langø, Thomas. (2014) Automatic registration of CT images to patient during the initial phase of bronchoscopy: A clinical pilot study. Medical Physics
  Vitenskapelig artikkel

2013

• Leira, Håkon Olav; Langø, Thomas; Hofstad, Erlend Fagertun; Sorger, Hanne; Amundsen, Tore. (2013) Bronchoscope-induced Displacement of Lung Targets: First In Vivo Demonstration of Effect From Wedging Maneuver in Navigated Bronchoscopy. Journal of Bronchology & Interventional Pulmonology
  Vitenskapelig artikkel

2012

• Leira, Håkon Olav. (2012) Development of an image guidance research system for bronchoscopy. Norges teknisk-naturvitenskapelige universitet Doktoravhandlinger ved NTNU, 1503-8181 (2012:260)
  Doktorgradsavhandling
• Leira, Håkon Olav; Tangen, Geir Arne; Hofstad, Erlend Fagertun; Langø, Thomas; Amundsen, Tore. (2012) A novel in vivo method for lung segment movement tracking. Physics in Medicine and Biology
  Vitenskapelig artikkel
• Bø, Lars Eirik; Leira, Håkon Olav; Tangen, Geir Arne; Hofstad, Erlend Fagertun; Amundsen, Tore; Langø, Thomas. (2012) Accuracy of electromagnetic tracking with a prototype field generator in an interventional OR setting. Medical Physics
  Vitenskapelig artikkel

2011

• Leira, Håkon Olav; Langø, Thomas; Hofstad, Erlend Fagertun; Tangen, Geir Arne; Bø, Lars Eirik; Amundsen, Tore. (2011) The influence on lung segment and tumor movement by bronchoscopic instruments – impact on navigated bronchoscopy. Journal of Thoracic Oncology
  Sammendrag/Abstract
• Hofstad, Erlend Fagertun; Bø, Lars Eirik; Tangen, Geir Arne; Leira, Håkon Olav; Amundsen, Tore; Langø, Thomas. (2011) Accuracy of electromagnetic tracking in navigated bronchoscopy with a prototype field generator in an interventional or setting. Journal of Thoracic Oncology
  Sammendrag/Abstract
• Leira, Håkon Olav; Lang, Thomas; Hofstad, Erlend Fagertun; Tangen, Geir Arne; Bø, Lars Eirik; Amundsen, Tore. (2011) A new method for in-vivo lung movement tracking - for diagnosis and therapy in lung medicine. Journal of Thoracic Oncology
  Sammendrag/Abstract
• Leira, Håkon Olav; Hofstad, Erlend Fagertun; Bø, Lars Eirik; Langø, Thomas; Amundsen, Tore. (2011) Navigated Bronchoscopy With Electromagnetic Tracking — Cone Beam Computed Tomography Influence on Tracking and Registration Accuracy. Journal of Bronchology & Interventional Pulmonology
  Vitenskapelig artikkel
• Leira, Håkon Olav; Amundsen, Tore; Tangen, Geir Arne; Bø, Lars Eirik; Manstad-Hulaas, Frode; Langø, Thomas. (2011) A novel research platform for electromagnetic navigated bronchoscopy using cone beam CT imaging and an animal model. MITAT. Minimally invasive therapy & allied technologies
  Vitenskapelig artikkel

2005

• Pedersen, Marit; Aasland, Jenny Kristin; Kaspersen, Jon Harald; Leira, Håkon Olav; Myhre, Hans Olav. (2005) Teleradiologisk oppfolging av pasienter behandlet med stentgraft i aorta. Tidsskrift for Den norske legeforening (Tidsskriftet)
  Vitenskapelig artikkel
• Kaspersen, Jon Harald; Aasland, Jenny; Leira, HO; Ødegard, Asbjørn; Nagelhus, Bjørn; Storset, G. (2005) Three-dimensional teleradiology for surveillance following endovascular aortic aneurysm repair: A feasibility study. Journal of Endovascular Therapy
  Vitenskapelig artikkel