Cerebral-blood-flow-velocity measurements in neonates: Technique and interobserver reliability

A. Ohlsson; K. Fong; M. L. Ryan; L. Yap; J. D. Smith; A. T. Shennan; P. Glanc

doi:10.1007/BF02026666

Cerebral-blood-flow-velocity measurements in neonates: Technique and interobserver reliability

A. Ohlsson, K. Fong, M. L. Ryan, L. Yap, J. D. Smith, A. T. Shennan, P. Glanc

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

The interobserver reliability for absolute cerebral-blood-flow-velocity measurements by colour and duplex Doppler sonography was tested in 32 neonates with a mean birth weight of 1489 (SD 644) g, and a gestational age of 29.9 (SD 3.5) weeks. Using standardized technique, two observers recorded on videotape, the Doppler spectrum of the anterior cerebral artery, the intracranial internal carotid artery and the middle cerebral artery. Peak systolic flow, end diastolic flow, mean flow velocity, resistive index and pulsatility index were computed from 3 consecutive waveforms by each observer. The estimates of interobserver reliability using the intraclass correlation coefficient of the examiners varied from 0.95 to 1.00. Therefore, cerebral blood flow velocity can be reliably measured in premature infants.

Original language	English (US)
Pages (from-to)	395-397
Number of pages	3
Journal	Pediatric radiology
Volume	21
Issue number	6
DOIs	https://doi.org/10.1007/BF02026666
State	Published - Oct 1991
Externally published	Yes

ASJC Scopus subject areas

Pediatrics, Perinatology, and Child Health
Radiology Nuclear Medicine and imaging

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10.1007/BF02026666

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title = "Cerebral-blood-flow-velocity measurements in neonates: Technique and interobserver reliability",

abstract = "The interobserver reliability for absolute cerebral-blood-flow-velocity measurements by colour and duplex Doppler sonography was tested in 32 neonates with a mean birth weight of 1489 (SD 644) g, and a gestational age of 29.9 (SD 3.5) weeks. Using standardized technique, two observers recorded on videotape, the Doppler spectrum of the anterior cerebral artery, the intracranial internal carotid artery and the middle cerebral artery. Peak systolic flow, end diastolic flow, mean flow velocity, resistive index and pulsatility index were computed from 3 consecutive waveforms by each observer. The estimates of interobserver reliability using the intraclass correlation coefficient of the examiners varied from 0.95 to 1.00. Therefore, cerebral blood flow velocity can be reliably measured in premature infants.",

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AU - Ohlsson, A.

AU - Fong, K.

AU - Ryan, M. L.

AU - Yap, L.

AU - Smith, J. D.

AU - Shennan, A. T.

AU - Glanc, P.

PY - 1991/10

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AB - The interobserver reliability for absolute cerebral-blood-flow-velocity measurements by colour and duplex Doppler sonography was tested in 32 neonates with a mean birth weight of 1489 (SD 644) g, and a gestational age of 29.9 (SD 3.5) weeks. Using standardized technique, two observers recorded on videotape, the Doppler spectrum of the anterior cerebral artery, the intracranial internal carotid artery and the middle cerebral artery. Peak systolic flow, end diastolic flow, mean flow velocity, resistive index and pulsatility index were computed from 3 consecutive waveforms by each observer. The estimates of interobserver reliability using the intraclass correlation coefficient of the examiners varied from 0.95 to 1.00. Therefore, cerebral blood flow velocity can be reliably measured in premature infants.

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Cerebral-blood-flow-velocity measurements in neonates: Technique and interobserver reliability

Abstract

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