Blar i SINTEF Open på forfatter "Brekken, Reidar"
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Bruk av ultralydapparat i lommeformat ved karkirurgi
Fagertun, Henriette; Våpenstad, Cecilie; Brekken, Reidar; Dahl, Torbjørn (Peer reviewed; Journal article, 2020)BAKGRUNN Ultralyd er mye brukt innen karkirurgi. Sammenlignet med konvensjonelle ultralydapparat har lommeultralydapparat begrenset funksjonalitet, men er billigere og enkle å bære med seg. Hensikten med studien var å ... -
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 ... -
Efficiency of ultrasound training simulators: Method for assessing image realism
Bø, Lars Eirik; Gjerald, Sjur Urdson; Brekken, Reidar; Hernes, Toril A. Nagelhus; Tangen, Geir Arne (Journal article; Peer reviewed, 2010) -
Manually steerable catheter with improved agility
Tangen, Geir Arne; Manstad-Hulaas, Frode; Nypan, Erik; Brekken, Reidar (Journal article; Peer reviewed, 2018)Purp ose: A prototype steerable catheter was designed for endovascular procedures. This technical pilot study reports the initial experience using the catheter for cannulation of visceral arteries. Technique: The 7F catheter ... -
Midterm Outcomes for Endovascular Repair of Thoraco-Abdominal Aortic Aneurysms
Ulsaker, Håvard; Seternes, Arne; Brekken, Reidar; Manstad-Hulaas, Frode (Peer reviewed; Journal article, 2022)Objective: To investigate technical and clinical outcomes in patients with thoraco-abdominal aortic aneurysms treated with the multibranched off the shelf Zenith t-Branch stent graft or a custom made device (CMD). Methods: A ... -
Non-invasive assessment of ICP in children: advances in ultrasound-based techniques
Padayachy, Llewellyn; Robba, C.; Brekken, Reidar (Peer reviewed; Journal article, 2020)The assessment of intracranial pressure (ICP) in children with neurological disease remains a cornerstone in their routine management. The quest for a reliable, reproducible and radiation-free non-invasive technique for ... -
Noninvasive Transorbital Assessment of the Optic Nerve Sheath in Children: Relationship Between Optic Nerve Sheath Diameter, Deformability Index, and Intracranial Pressure
Padayachy, Llewellyn; Brekken, Reidar; Fieggen, Graham; Selbekk, Tormod (Journal article; Peer reviewed, 2018)BACKGROUND: Measurement of optic nerve sheath diameter (ONSD) is a promising technique for noninvasive assessment of intracranial pressure (ICP), but has certain limitations. A recent study showed that the deformability ... -
A Steerable and Electromagnetically Tracked Catheter: Navigation Performance Compared With Image Fusion in a Swine Model
Nypan, Erik; Tangen, Geir Arne; Brekken, Reidar; Manstad-Hulaas, Frode (Peer reviewed; Journal article, 2022)Purpose: Cannulation of visceral vessels is necessary during fenestrated and branched endovascular aortic repair. In an attempt to reduce the associated radiation and contrast dose, an electromagnetically (EM) trackable ...