Research
Our technology and proof of concept are founded in a series of published clinical studies and peer reviewed papers.
News
- 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
Original research papers
- Original Research paper
Dynamic cerebral autoregulation in infants undergoing major non-cardiac surgery
- Original Research paper
Perioperative Detection of Cerebral Fat Emboli From Bone Using High-Frequency Doppler Ultrasound
- Original Research paper
Instant Detection of Cerebral Blood Flow Changes in Infants with Congenital Heart Disease during Transcatheter Interventions
- Original Research paper
Cerebral blood flow dynamics during cardiac surgery in infants
Leth-Olsen M, Døhlen G, Torp H, Nyrnes SA. Pediatr Res. 2025 Feb;97(2):625-633.
- Original Research paper
Continuous fetal cerebral blood flow monitoring during labor: A feasibility study
Kristin Melheim Strand, Hans Torp, Anne Engtrø Husby, Kjell Å.B. Salvesen, Siri Ann Nyrnes, Early Human Development, Volume 182, 2023.
- Original Research paper
Continuous monitoring of cerebral blood flow during general anaesthesia in infants
Editorial
- Original Research paper
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. Front. Pediatr. 2022 Nov. doi: 10.3389/fped.2022.929117.
- Original Research paper
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. Ultrasound Med Biol. 2022 Jul;48(7):1256-1267.
- Original Research paper
Effects of tilt on cerebral hemodynamics measured by NeoDoppler in healthy neonates
Jarmund AH, Ødegård SS, Torp H, Nyrnes SA. Pediatr Res. 2021 Oct;90(4):888-895.
- Original Research paper
NeoDoppler: New ultrasound technology for continuous cerebral circulation monitoring in neonates
Vik SD, Torp H, Follestad T, Støen R, Nyrnes SA. Pediatr Res. 2020 Jan;87(1):95-103. doi: 10.1038/s41390-019-0535-0. Epub 2019 Aug 12.
Review articles
- 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.
- Review article
A Scoping Review of Cerebral Doppler Arterial Waveforms in Infants
Jarmund AH, Pedersen SA, Torp H, Dudink J, Nyrnes SA. Ultrasound Med Biol. 2023 Apr;49(4):919-936. doi: 10.1016/j.ultrasmedbio.2022.12.007. Epub 2023 Jan 31.
Conference presentations/abstracts
- Conference presentation/Abstract
- 6th Congress of joint European Neonatal Societies 2025
Continuous Cerebral Doppler Monitoring Reveals Novel Insights into Cerebral Hemodynamics in Asphyxiated Neonates
Sophie van Someren, Hester Rijkje Berger, Hans Torp, Siri Ann Nyrnes, Thomas Alderliesten, Jeroen Dudink
- Conference presentation/Abstract
- Innovations in Pediatric Cardiovascular Ultrasound and Brain Perfusion - BACUS Symposium 2025.
NeoDoppler – how and why?
Keynote lecture, Nyrnes SA
- Conference presentation/Abstract
- 9th World Congress of Pediatric Cardiology and Cardiac Surgery (WCPCCS) 2025:
NeoDoppler instantly displays cerebral blood flow velocities during cardiac surgery and intensive care
Kclovansky J, Torp H, Nyrnes SA
- Conference presentation/Abstract
- 8th World Congress of Pediatric Cardiology and Cardiac Surgery 2023
Dynamic Autoregulation in Infants Undergoing Cardiac Surgery
Leth-Olsen, M; Døhlen, G; Torp, H; Nyrnes, SA.
- Conference presentation/Abstract
- 8th World Congress of Pediatric Cardiology and Cardiac Surgery 2023
Cerebral Blood Flow Monitoring for Instant Display of Circulatory Events During Cardiac Surgery
Klcovansky, J; Torp, H; Nyrnes, SA.
- Conference presentation/Abstract
- Pediatric Academic Societies 2022:
NeoDoppler monitoring of cerebral blood flow during general anesthesia in infants
S. D. Vik, H. Torp, R. Støen and S.A. Nyrnes. Poster presentation.
RescueDoppler
- 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.