• A novel method for planning liver resections using deformable Bezier surfaces and distance maps 

      Palomar, Rafael; Alaya Cheikh, Faouzi; Edwin, Bjørn; Fretland, Åsmund Avdem; Beghdadi, Azeddine; Elle, Ole Jakob (Journal article; Peer reviewed, 2017)
      Background and Objective: For more than a decade, computer-assisted surgical systems have been helping surgeons to plan liver resections. The most widespread strategies to plan liver resections are: drawing traces in ...
    • Inflammatory response after laparoscopic versus open resection of colorectal liver metastases: Data from the oslo-comet trial 

      Fretland, Åsmund Avdem; Sokolov, Andrey; Postriganova, Nadezda; Kazaryan, Airazat M.; Pischke, Søren Erik; Nilsson, Per; Rognes, Ingrid Nygren; Bjørnbeth, Bjørn Atle; Fagerland, Morten; Mollnes, Tom Eirik; Edwin, Bjørn (Journal article; Peer reviewed, 2015)
      Laparoscopic and open liver resection have not been compared in randomized trials. The aim of the current study was to compare the inflammatory response after laparoscopic and open resection of colorectal liver metastases ...
    • Long-term oncologic outcomes after laparoscopic versus open resection for colorectal liver metastasis 

      Aghayan, Davit; Kazaryan, Airazat; Dagenborg, Vegar Johansen; Røsok, Bård Ingvald; Fagerland, Morten Wang; Bjørnelv, Gudrun Maria Waaler; Kristiansen, Ronny; Flatmark, Kjersti; Fretland, Åsmund Avdem; Edwin, Bjørn (Peer reviewed; Journal article, 2020)
      Background: Despite the recent worldwide dissemination of laparoscopic liver surgery, no high-level evidence supports the oncologic safety of this approach. Objective: To evaluate long-term oncologic outcomes after ...
    • The effect of intraoperative imaging on surgical navigation for laparoscopic liver resection surgery 

      Teatini, Andrea; Pelanis, Egidijus; Aghayan, Davit; Kumar, Rahul Prasanna; Palomar, Rafael; Fretland, Åsmund Avdem; Edwin, Bjørn; Elle, Ole Jacob (Journal article; Peer reviewed, 2019)
      Conventional surgical navigation systems rely on preoperative imaging to provide guidance. In laparoscopic liver surgery, insufflation of the abdomen (pneumoperitoneum) can cause deformations on the liver, introducing ...
    • Towards a video quality assessment based framework for enhancement of laparoscopic videos 

      Khan, Zohaib Amjad; Beghdadi, Azeddine; Alaya Cheikh, Faouzi; Kaaniche, Mounir; Pelanis, Egidijus; Palomar, Rafael; Fretland, Åsmund Avdem; Edwin, Bjørn; Elle, Ole Jacob (Peer reviewed; Journal article, 2020)
      Laparoscopic videos can be affected by different distortions which may impact the performance of surgery and introduce surgical errors. In this work, we propose a framework for automatically detecting and identifying such ...
    • Use of mixed reality for improved spatial understanding of liver anatomy 

      Pelanis, Egidijus; Kumar, Rahul Prasanna; Aghayan, Davit; Palomar, Rafael; Fretland, Åsmund Avdem; Brun, Henrik; Elle, Ole Jacob; Edwin, Bjørn (Journal article; Peer reviewed, 2019)
      Introduction: In liver surgery, medical images from pre-operative computed tomography and magnetic resonance imaging are the basis for the decision-making process. These images are used in surgery planning and guidance, ...
    • Use of mixed reality for surgery planning: Assessment and development workflow 

      Kumar, Rahul Prasanna; Pelanis, Egidijus; Bugge, Robin Antony Birkeland; Brun, Henrik; Palomar, Rafael; Aghayan, Davit; Fretland, Åsmund Avdem; Edwin, Bjørn; Elle, Ole Jacob (Peer reviewed; Journal article, 2020)
      Meticulous preoperative planning is an important part of any surgery to achieve high levels of precision and avoid complications. Conventional medical 2D images and their corresponding three-dimensional (3D) reconstructions ...