Research

Our technology and proof of concept are founded in a series of published clinical studies and peer reviewed papers.

Conference presentation/Abstract: ResQDoppler

European Society of Cardiology Digital & AI Summit 2025 in Berlin / May 27 2025

Real-Time Detection of Return of Spontaneous Circulation During Cardiopulmonary Resuscitation Using AI and Carotid Doppler Ultrasound

Raghava Vinaykanth Mushunuri, a Ph.D. candidate in the RescueDoppler project. Poster presentation

Conference presentation/Abstract: ResQDoppler

Resuscitation Science Symposium in Chicago / November 18 2025

Return of spontaneous circulation immediately after defibrillation detected by continuous hands-free carotid Doppler

Guro Mæhlum Krüger. Abstract and Oral presentation

Conference presentation/Abstract: ResQDoppler

European Resuscitation Council Congress in Rotterdam / October 23–25 2025

Exploring enablers and barriers towards the use of chest compression feedback devices

Øystein Myrlund Hansen. Poster presentation.

Original research paper: ResQDoppler

Porcine Cardiac Arrest Model Using an Implantable Defibrillator

Storm BS, Lappegård KT, Ingul CB, Nielsen EW, Nielsen BA, Nyjordet A, How OJ, Faldaas BO. J Vis Exp. 2026 Jan 9;(227). doi: 10.3791/69305.

Original research paper: ResQDoppler

Detection of return of spontaneous circulation during cardiopulmonary resuscitation using continuous carotid artery Doppler blood flow monitored by AI in an animal model

Mushunuri RV, Faldaas BO, Lindseth F, Ingul CB, Kiss G. Resusc Plus. 2025 Dec 24;27:101207. doi: 10.1016/j.resplu.2025.101207. eCollection 2026 Jan

Original research paper: ResQDoppler

Exploring enablers and barriers to the use of chest compression feedback devices in advanced life support: a qualitative study

Hansen ØM, Ingul CB, Storm BS, Solbakken R. Scand J Trauma Resusc Emerg Med. 2026 Apr 1. doi: 10.1186/s13049-026-01607-3. Online ahead of print.

Original research paper: ResQDoppler

Realtime detection of spontaneous circulation in humans during cardiopulmonary resuscitation using a continuous hands-free carotid Doppler: a pilot study

Krüger GM, Birkeli SG, Hansen ØM, Faldaas BO, Norvik A, Lund HJ, Egil Hautois GL, Flage JH, Urteaga J, Hergum T, Torp H, Skogvoll E, Ingul CB.Resusc Plus. 2025 Sep 3;26:101080. doi: 10.1016/j.resplu.2025.101080. eCollection 2025 Nov.

Original research paper: ResQDoppler

Detection of return of spontaneous circulation during cardiopulmonary resuscitation using continuous carotid artery Doppler blood flow monitored by AI in an animal model

Mushunuri RV, Faldaas BO, Lindseth F, Ingul CB, Kiss G.Resusc Plus. 2025 Dec 24;27:101207. doi: 10.1016/j.resplu.2025.101207. eCollection 2026 Jan.

Review article

A scoping review of variations in cerebral Doppler venous waveforms in infants

Steinsmo Ødegård S, Jarmund AH, Pedersen SA, Govaert P, Dudink J, Nyrnes SA. Neuroimage. 2026 Jan 31:121766. doi: 10.1016/j.neuroimage.2026.121766. Epub ahead of print. PMID: 41628680.

Continuous monitoring of cerebral blood flow during general anaesthesia in infants

Sigrid D. Vik, Hans Torp, Anders H. Jarmund, Gabriel Kiss, Turid Follestad, Ragnhild Støen, Siri Ann Nyrnes. Doi: 10.1016/j.bjao.2023.100144 BJA Open, 6 (C): 100144 (2023) Received: 3 February 2023; Accepted: 22 April 2023

NeoDoppler: New ultrasound technology for continuous cerebral circulation monitoring in neonates

Vik SD, Torp H, Follestad T, Støen R, Nyrnes SA. NeoDoppler: New ultrasound technology for continous cerebral circulation monitoring in neonates. Pediatr Res. 2020 Jan;87(1):95-103. doi: 10.1038/s41390-019-0535-0. Epub 2019 Aug 12.

Effects of tilt on cerebral hemodynamics measured by NeoDoppler in healthy neonates

Jarmund AH, Ødegård SS, Torp H, Nyrnes SA. Effects of tilt on cerebral hemodynamics measured by NeoDoppler in healthy neonates. Pediatr Res. 2021 Oct;90(4):888-895.

Detection of Cerebral High-Intensity Transient Signals by NeoDoppler during Cardiac Catheterization and Cardiac Surgery in Infants

Leth-Olsen M, Døhlen G, Torp H, Nyrnes SA. Detection of Cerebral High-Intensity Transient Signals by NeoDoppler during Cardiac Catheterization and Cardiac Surgery in Infants. Ultrasound Med Biol. 2022 Jul;48(7):1256-1267.

Low frequency cerebral arterial and venous flow oscillations in healthy neonates measured by NeoDoppler

Ødegård SS, Torp H, Follestad T, Leth-Olsen M, Støen R, Nyrnes SA. Low frequency cerebral arterial and venous flow oscillations in healthy neonates measured by NeoDoppler. Front. Pediatr. 2022 Nov. doi: 10.3389/fped.2022.929117.

A Scoping Review of Cerebral Doppler Arterial Waveforms in Infants

Jarmund AH, Pedersen SA, Torp H, Dudink J, Nyrnes SA. A Scoping Review of Cerebral Doppler Arterial Waveforms in Infants. Ultrasound Med Biol. 2023 Apr;49(4):919-936. doi: 10.1016/j.ultrasmedbio.2022.12.007. Epub 2023 Jan 31.

Abstracts

Monitoring of cerebral high intensity transient signals during catheter interventions and surgery for congenital heart disease in infants using NeoDoppler

M. Leth-Olsen, G. Døhlen, H. Torp, S.A. Nyrnes. Poster EACVI Best In Imaging.

Low frequency cerebral arterial and venous flow oscillations in healthy neonates masured by NeoDoppler

S. S. Ødegård, H. Torp, T. Follestad, M. Leth-Olsen, R. Støen, S.A. Nyrnes. Low frequency oscillations PAS

NeoDoppler–Continuous cerebral blood flow monitoring during cardiac surgery and interventions in children with congenital heart disease

M. Leth-Olsen, G. Døhlen, Guro Grindheim, H. Torp, S.A. Nyrnes. NeoDoppler – Continuous cerebral blood flow monitoring – MLO

NeoDoppler monitoring of cerebral blood flow during general anesthesia in infants

Sigrid D. Vik, Hans Torp, Dr. Tech, Prof1, Ragnhild Støen, MD, PhD, Prof, and Siri Ann Nyrnes MD, PhD