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Research ArticleBrain

Comparison of Phase-Contrast MR Imaging and Endovascular Sonography for Intracranial Blood Flow Velocity Measurements

J.J. Schneiders, S.P. Ferns, P. van Ooij, M. Siebes, A.J. Nederveen, R. van den Berg, J. van Lieshout, G. Jansen, E. vanBavel and C.B. Majoie
American Journal of Neuroradiology October 2012, 33 (9) 1786-1790; DOI: https://doi.org/10.3174/ajnr.A3142
J.J. Schneiders
aDepartments of Radiology (J.J.S., S.P.F., P.v.O., A.J.N., R.v.d.B., C.B.M.)
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S.P. Ferns
aDepartments of Radiology (J.J.S., S.P.F., P.v.O., A.J.N., R.v.d.B., C.B.M.)
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P. van Ooij
aDepartments of Radiology (J.J.S., S.P.F., P.v.O., A.J.N., R.v.d.B., C.B.M.)
bBiomedical Engineering and Physics (P.v.O., M.S., E.v.B.)
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M. Siebes
bBiomedical Engineering and Physics (P.v.O., M.S., E.v.B.)
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A.J. Nederveen
aDepartments of Radiology (J.J.S., S.P.F., P.v.O., A.J.N., R.v.d.B., C.B.M.)
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R. van den Berg
aDepartments of Radiology (J.J.S., S.P.F., P.v.O., A.J.N., R.v.d.B., C.B.M.)
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J. van Lieshout
dInternal Medicine (J.v.L.), Academic Medical Center, University of Amsterdam, the Netherlands
eSchool of Biomedical Sciences (J.v.L.), University of Nottingham Medical School, Queen's Medical Centre, Nottingham, United Kingdom.
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G. Jansen
cAnesthesiology (G.J.)
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E. vanBavel
bBiomedical Engineering and Physics (P.v.O., M.S., E.v.B.)
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C.B. Majoie
aDepartments of Radiology (J.J.S., S.P.F., P.v.O., A.J.N., R.v.d.B., C.B.M.)
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Abstract

BACKGROUND AND PURPOSE: Local hemodynamic information may help to stratify rupture risk of cerebral aneurysms. Patient-specific modeling of cerebral hemodynamics requires accurate data on BFV in perianeurysmal arteries as boundary conditions for CFD. The aim was to compare the BFV measured with PC-MR imaging with that obtained by using intra-arterial Doppler sonography and to determine interpatient variation in intracranial BFV.

MATERIALS AND METHODS: In 10 patients with unruptured intracranial aneurysms, BFV was measured in the cavernous ICA with PC-MR imaging in conscious patients before treatment, and measured by using an intra-arterial Doppler sonography wire when the patient was anesthetized with either propofol (6 patients) or sevoflurane (4 patients).

RESULTS: Both techniques identified a pulsatile blood flow pattern in cerebral arteries. PSV differed >50 cm/s between patients. A mean velocity of 41.3 cm/s (95% CI, 39.3–43.3) was measured with PC-MR imaging. With intra-arterial Doppler sonography, a mean velocity of 29.3 cm/s (95% CI, 25.8–32.8) was measured with the patient under propofol-based intravenous anesthesia. In patients under sevoflurane-based inhaled anesthesia, a mean velocity of 44.9 cm/s (95% CI, 40.6–49.3) was measured.

CONCLUSIONS: We showed large differences in BFV between patients, emphasizing the importance of using patient-specific hemodynamic boundary conditions in CFD. PC-MR imaging measurements of BFV in conscious patients were comparable with those obtained with the intra-arterial Doppler sonography when the patient was anesthetized with a sevoflurane-based inhaled anesthetic.

ABBREVIATIONS:

BFV
blood flow velocity
CFD
computational fluid dynamics
CI
confidence interval
PC-MRI
phase contrast MR imaging
PaCO2
arterial CO2 pressure
PSV
peak systolic velocity
TCD
transcranial Doppler
  • © 2012 by American Journal of Neuroradiology
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American Journal of Neuroradiology: 33 (9)
American Journal of Neuroradiology
Vol. 33, Issue 9
1 Oct 2012
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Cite this article
J.J. Schneiders, S.P. Ferns, P. van Ooij, M. Siebes, A.J. Nederveen, R. van den Berg, J. van Lieshout, G. Jansen, E. vanBavel, C.B. Majoie
Comparison of Phase-Contrast MR Imaging and Endovascular Sonography for Intracranial Blood Flow Velocity Measurements
American Journal of Neuroradiology Oct 2012, 33 (9) 1786-1790; DOI: 10.3174/ajnr.A3142

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Comparison of Phase-Contrast MR Imaging and Endovascular Sonography for Intracranial Blood Flow Velocity Measurements
J.J. Schneiders, S.P. Ferns, P. van Ooij, M. Siebes, A.J. Nederveen, R. van den Berg, J. van Lieshout, G. Jansen, E. vanBavel, C.B. Majoie
American Journal of Neuroradiology Oct 2012, 33 (9) 1786-1790; DOI: 10.3174/ajnr.A3142
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