Research groups
Research projects
Ongoing research projects
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A Multi-Stage Framework for Stroke-Specific Prehospital Quality Indicators in Norway (PreStroke QI)
This PhD project aims to develop national quality indicators for prehospital stroke care in Norway to strengthen quality measurement, reduce variation in care, and support improved patient pathways.
Publications and research
Scientific publications
Rognes, Ingrid Nygren; Morberg, Pål; Solberg, Henriette; Rehn, Marius; Stø, Kristine; Alteheld, Lars Holger; Sandset, Else Charlotte;
Hov, Maren Ranhoff
; Larsen, Karianne
(2026).
Transcranial Ultrasound in the Helicopter Emergency Medical Services—A Feasibility Study.
Journal of Neuroimaging (JON).
Vol. 36.
https://doi.org/10.1111/jon.70145
Jahr, Silje Holt; Selseth, Maiken Nordahl; Larsen, Kristin Tveitan; REICHENBACH, ANTJE; Altmann, Marianne; Sundseth, Antje; Hillestad, Vigdis; Bugge, Helge Fagerheim; Braarud, Anne-Cathrine;
Hov, Maren Ranhoff
; Faiz, Kashif Waqar; Rønning, Ole Morten; Sandset, Else Charlotte; Kristoffersen, Espen Saxhaug
(2026).
Diagnostic performance of prehospital large-vessel occlusion detection scales in patients with suspected acute stroke: a retrospective validation study. The Akershus Study of Ischemic Stroke and Thrombolysis.
European Stroke Journal.
Vol. 11.
https://doi.org/10.1093/esj/aakag067
Ibsen, Jørgen;
Hov, Maren Ranhoff
; Holodinsky, Jessalyn Kathryn; Kaasa, Per Olav;
Pripp, Are Hugo
; Lund, Christian G.; Hall, Christian
(2026).
Rural Computed Tomography - a model for access to rapid stroke care in sparsely populated areas?.
BMC Health Services Research.
Vol. 26.
https://doi.org/10.1186/s12913-026-14307-6
Jagtenberg, Caroline J.; Boer, Annemijn M.; Rehn, Marius; Røislien, Jo;
Hov, Maren Ranhoff
; Larsen, Karianne
(2026).
Geospatial optimization of Air-Mobile Stroke Unit deployment in Norway: expanding the frontiers of neurocritical care.
Frontiers in Neurology.
Vol. 17.
https://doi.org/10.3389/fneur.2026.1740806
Wells, Brittany; Nasreldein, Ahmed; Larsen, Karianne; Wijck, Frederike van; Carcel, Cheryl; Christensen, Hanne;
Hov, Maren Ranhoff
; Caso, Valeria; Woodward, Mark; Silva, Deidre Anne De; Nguyen, Thanh N.; Maloy, Vilde Teigene; Allende, Maria Ignacia; Opare-Addo, Priscilla Abrafi; Fassbender, Klaus; Bachhuber, Monika; Sandset, Else Charlotte; Walter, Silke; Avici, Ayse; Arsava, Murat; Arsovska, Anita; Eren, Fettah; Gulsen, Kadir; Hubert, Gordian; Martins, Sheila; Matuja, Sarah; Nguyen, Trung Quoc; Ozturk, Serefnur; Silva, Giselle Samapaio; Sarfo, Fred Stephen; Group, on behalf of the SESAME Study
(2025).
Sex Differences in Prehospital Stroke Medicine (SESAME): A Systematic Review and Meta-Analysis.
Stroke.
Vol. 56.
https://doi.org/10.1161/STROKEAHA.124.050414
Bugge, Helge Fagerheim;
Guterud, Mona
; Larsen, Karianne; Toft, Mathias;
Hov, Maren Ranhoff
; Sandset, Else Charlotte
(2025).
Presenting symptoms and diagnostic accuracy of prehospital stroke scales for patients with suspected mild minor stroke.
European Stroke Journal.
Vol. 11.
https://doi.org/10.1177/23969873251360592
Markhorst, Berend; Jagtenberg, Caroline;
Hov, Maren Ranhoff
; Mei, Rob van der; Larsen, Karianne
(2025).
Optimizing mobile stroke unit deployment: A strategic case study in the greater Oslo area.
European Stroke Journal.
https://doi.org/10.1177/23969873251329862
Ibsen, Jørgen;
Hov, Maren Ranhoff
; Varmdal, Torunn; Lund, Christian; Hall, Christian
(2025).
Transport time as a potential limiting factor for thrombolytic treatment of stroke in Norway.
BMC Health Services Research.
Vol. 25.
https://doi.org/10.1186/s12913-025-12503-4
Christensen, Emma; Bugge, Helge Fagerheim; Hagemo, Jostein Skjalg; Larsen, Karianne;
Harring, Astrid Karina V.
; Gleditsch, Jostein; Ibsen, Jørgen;
Guterud, Mona
; Sandset, Else Charlotte;
Hov, Maren Ranhoff
(2024).
Prehospital stroke diagnostics using three different simulation methods: A pragmatic pilot study.
European Stroke Journal.
Vol. 9.
https://doi.org/10.1177/23969873241252564
Guterud, Mona
; Hardeland, Camilla; Bugge, Helge Fagerheim; Sandset, Else Charlotte;
Svendsen, Edel Jannecke
;
Hov, Maren Ranhoff
(2024).
Experiences from a cluster-randomized trial (ParaNASPP) exploring triage and diagnostic accuracy in paramedic-suspected stroke: a qualitative interview study.
European Journal of Neurology.
Vol. 31.
https://doi.org/10.1111/ene.16252