Forskning
Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Common Carotid Artery Volume Flow: A Comparison Study between Ultrasound Vector Flow Imaging and Phase Contrast Magnetic Resonance Imaging

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

  1. Validity of negative bone biopsy in suspicious bone lesions

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Dual-energy CT

    Publikation: Bidrag til tidsskriftReviewForskningpeer review

  3. Evaluation of competence in ultrasound-guided procedures-a generic assessment tool developed through the Delphi method

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. Simulation-based training in ultrasound - where are we now?

    Publikation: Bidrag til tidsskriftLederForskningpeer review

Vis graf over relationer

Volume flow estimation in the common carotid artery (CCA) can assess the absolute hemodynamic effect of a carotid stenosis. The aim of this study was to compare a commercial vector flow imaging (VFI) setup against the reference method magnetic resonance phase contrast angiography (MRA) for volume flow estimation in the CCA. Ten healthy volunteers were scanned with VFI and MRA over the CCA. VFI had an improved precision of 19.2% compared to MRA of 31.9% (p = 0.061). VFI estimated significantly lower volume flow than MRA (mean difference: 63.2 mL/min, p = 0.017), whilst the correlation between VFI and MRA was strong (R2 = 0.81, p < 0.0001). A Bland-Altman plot indicated a systematic bias. After bias correction, the percentage error was reduced from 41.0% to 25.2%. This study indicated that a VFI setup for volume flow estimation is precise and strongly correlated to MRA volume flow estimation, and after correcting for the systematic bias, VFI and MRA become interchangeable.

OriginalsprogEngelsk
TidsskriftNeurology international
Vol/bind13
Udgave nummer3
Sider (fra-til)269-278
Antal sider10
ISSN2035-8385
DOI
StatusUdgivet - sep. 2021

ID: 66791704