Browsing NTNU Open by Author "Selbekk, Tormod"
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A new acoustic coupling fluid with ability to reduce ultrasound imaging artefacts in brain tumour surgery - a phase I study
Unsgård, Geirmund; Sagberg, Lisa Millgård; Muller, Sebastien; Selbekk, Tormod (Journal article; Peer reviewed, 2019)Background Anovel acoustic coupling fluid (ACF), with the potential to reduce surgically induced image artefacts during intraoperative ultrasound imaging in brain tumour surgery, has been evaluated with respect to image ... -
Animal study assessing safety of an acoustic coupling fluid that holds the potential to avoid surgically induced artifacts in 3D ultrasound guided operations
Jakola, Asgeir S; Jørgensen, Arve; Selbekk, Tormod; Michler, Ralf-Peter; Solheim, Ole; Torp, Sverre Helge; Sagberg, Lisa Millgård; Aadahl, Petter; Unsgård, Geirmund (Journal article; Peer reviewed, 2014)Background Use of ultrasound in brain tumor surgery is common. The difference in attenuation between brain and isotonic saline may cause artifacts that degrade the ultrasound images, potentially affecting resection grades ... -
Comparison of contrast in brightness mode and strain ultrasonography of glial brain tumours
Selbekk, Tormod; Brekken, Reidar; Indergaard, Marit Kristina; Solheim, Ole; Unsgård, Geirmund (Journal article; Peer reviewed, 2012)Background Image contrast between normal tissue and brain tumours may sometimes appear to be low in intraoperative ultrasound. Ultrasound imaging of strain is an image modality that has been recently explored for ... -
Intraoperative Ultrasound Strain Imaging of Brain Tumors
Børstad, Thomas Kristoffersen (Master thesis, 2011)Intraoperative ultrasound strain imaging of the brain visualizes brain tissue deformation as an image. The hypothesis is that strain and elastographic values can be used to complement conventional B-mode image in the task ... -
Investigation of Methods for 2D Strain Imaging of Brain Tumors
Kvåle, Kaja Frøysaa (Master thesis, 2014)Intraoperative ultrasound strain imaging displays brain tissue stiffness rather than difference in mass density as regular B-mode imaging. A glioma (the most common type of brain tumor) has a tendency of infiltrating ... -
Registration of MR to Percutaneous Ultrasound of the Spine for Image-Guided Surgery
Bø, Lars Eirik; Palomar, Rafael; Selbekk, Tormod; Reinertsen, Ingerid (Chapter, 2014)One of the main limitations of today’s navigation systems for spine surgery is that they often are not available until after the bone surface has been exposed. Also, they lack the capability of soft tissue imaging, both ... -
Ultrasound imaging in neurosurgery: Delineation of tumours for resection control
Selbekk, Tormod (Doktoravhandlinger ved NTNU, 1503-8181; 2013:85, Doctoral thesis, 2013)Complete removal, as opposed to only partial removal, of all macroscopic tumor tissue is associated with longer survival for most of the brain tumours. Ultrasound is an imaging technique that can contribute to increase the ... -
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 ...