Reidar Brekken
Senior Research Scientist
Reidar Brekken
Senior Research Scientist
Publications and responsibilities
Non-invasive assessment of ICP in children: advances in ultrasound-based techniques
Treatment of restenosis in radiocephalic arteriovenous hemodialysis fistulas: percutaneous transluminal angioplasty or drug-coated balloon
Noninvasive Transorbital Assessment of the Optic Nerve Sheath in Children: Relationship Between Optic Nerve Sheath Diameter, Deformability Index, and Intracranial Pressure
Vessel-based rigid registration for endovascular therapy of the abdominal aorta
Manually steerable catheter with improved agility
Purpose: 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 was manually steerable with operator control handle for bending and...
Registration of Real-Time 3-D Ultrasound to Tomographic Images of the Abdominal Aorta
The purpose of this study was to develop an image-based method for registration of real-time 3-D ultrasound to computed tomography (CT) of the abdominal aorta, targeting future use in ultrasound-guided endovascular intervention. We proposed a method in which a surface model of the aortic wall was...
Pulsatile dynamics of the optic nerve sheath and intracranial pressure: An exploratory in vivo investigation
... BACKGROUND: Raised intracranial pressure (ICP) may lead to increased stiffness of the optic nerve sheath (ONS). OBJECTIVE: To develop a method for analyzing ONS dynamics from transorbital ultrasound and investigate a potential difference between patients with raised ICP vs normal ICP...