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Doppler-assessed cerebral blood flow velocity in the neonate as estimator of global cerebral blood volume flow measured using phase-contrast magnetic resonance angiography.

Abstract：

BACKGROUND:We hypothesized that color Doppler-measured cerebral blood flow velocity (CD-CBFV) as measured in the three feeding arteries of the brain can be used as an estimator of global cerebral blood flow. PATIENTS AND METHODS:CD-CBFV was determined as soon as possible after determination of phase-contrast magnetic resonance angiography-measured blood volume flow (PC-MRA BVF) by adding up angle-corrected time-averaged mean flow velocities of both internal carotid arteries and basilar artery. 30 newborns (gestational age ranging from 25 to 42 weeks; actual weight ranging from 1,050 to 5,858 g; postconceptional age ranging from 225 to 369 days) were investigated. RESULTS:Doppler-determined CBFV ranged from 37 to 131 cm/s with a median of 69 cm/s. CD-CBFV showed a positive correlation with actual weight (r = 0.56, p < 0.01) and postconceptional age (r = 0.53, p < 0.01). CD-CBFV correlated positively with PC-MRA-measured BVF (r = 0.51, p < 0.01). Gestational age at birth, mechanical ventilation or gender did not influence this relationship. The limits of agreement, however, are wide, especially at higher CD-CBFV- and PC-MRA-measured BVF. CONCLUSION:CD-CBFV may be used as a non-invasive trend-monitoring tool to detect gross changes in global cerebral blood flow in the unstable and sick neonate.

journal_name

Neonatology

journal_title

Neonatology

authors

Benders MJ,Hendrikse J,de Vries L,Groenendaal F,van Bel F

doi

10.1159/000342336

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

21-6

issue

1

eissn

1661-7800

issn

1661-7819

pii

000342336

journal_volume

103

pub_type

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