Browsing NTNU Open by Author "Steffensen, Torjus Lines"
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Development and application of a vascular phantom system
Steffensen, Torjus Lines (Master thesis, 2019)Hjertestans utenfor sykehus rammer årlig rundt 3,000 mennesker i Norge. Dødeligheten er høy og stiger dess lengre tid som går før pasienten får behandling. Et eksperimentelt nødinngrep, REBOA, vurderes som en mulig behandling ... -
Embedded Soft Inductive Sensors to Measure Arterial Expansion of Tubular Diameters in Vascular Phantoms
Steffensen, Torjus Lines; Auflem, Marius; Vestad, Håvard; Steinert, Martin (Peer reviewed; Journal article, 2022)Measuring diameter change in flexible tubular structures embedded in opaque material is challenging. In this article, we present a soft braided coil embedded in an elastomer tube as a method to continuously measure such a ... -
Resuscitative endovascular balloon occlusion of the aorta (REBOA) in non-traumatic out-of-hospital cardiac arrest: Evaluation of an educational programme
Brede, Jostein Rødseth; Lafrenz, Thomas; Krüger, Andreas; SØVIK, EDMUND; Steffensen, Torjus Lines; Kriesi, Carlo; Steinert, Martin; Klepstad, Pål (Journal article; Peer reviewed, 2019)Background Out-of-hospital cardiac arrest (OHCA) is a critical incident with a high mortality rate. Augmentation of the circulation during cardiopulmonary resuscitation (CPR) might be beneficial. Use of resuscitative ... -
Vitals on the wrist Sensor development for unobtrusive and ubiquitous cardiovascular monitoring
Steffensen, Torjus Lines (Doctoral theses at NTNU;2023:358, Doctoral thesis, 2023)English summary: Cardiovascular monitoring has become ubiquitous with the advent of modern smartwatches and smartphones. We can track our heart rates and oxygen saturation through the day, as we sleep, we can record our ... -
Wrist ballistocardiography and invasively recorded blood pressure in healthy volunteers during reclining bike exercise
Steffensen, Torjus Lines; Schjerven, Filip Emil; Flade, Hans Martin; Kirkeby-Garstad, Idar; Ingeström, Emma Maria Lovisa; Solberg, Fredrik Samdal; Steinert, Martin (Peer reviewed; Journal article, 2023)Objective: Ballistocardiogram (BCG) features are of interest in wearable cardiovascular monitoring of cardiac performance. We assess feasibility of wrist acceleration BCG during exercise for estimating pulse transit time ...