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A comparison between single gate and multigate ultrasonic Doppler measurements for the assessment of the velocity pattern in the human ascending aorta


Jenni, R; Vieli, A; Ruffmann, K; Krayenbuehl, H P; Anliker, M (1984). A comparison between single gate and multigate ultrasonic Doppler measurements for the assessment of the velocity pattern in the human ascending aorta. European Heart Journal, 5(11):948-953.

Abstract

The velocity pattern in the ascending aorta of 15 healthy adults was measured quasisimultaneously from the Doppler-shifts produced in 16 gates distributed equally within the cross-section along a narrow ultrasound beam which centrally traversed the vessel upstream of the brachiocephalic trunk. A comparison between the time integrals of the velocities in gates 9 (centre line), 4 and 13 (off centre) and the time integral of the weighted mean of the velocities of all gates correlated with r=0.90, SEE=1.05 (gate 9), r=0.90, SEE 0.88 (gate 4) and r=0.92, SEE 0.94 (gate 13). A better correlation (r=0.96, SEE=0.60) was found between the linear mean of all gates and the weighted mean. These results show that Doppler measurements in single small gates are not appropriate to determine the average cross-sectional blood flow velocity in healthy adults

Abstract

The velocity pattern in the ascending aorta of 15 healthy adults was measured quasisimultaneously from the Doppler-shifts produced in 16 gates distributed equally within the cross-section along a narrow ultrasound beam which centrally traversed the vessel upstream of the brachiocephalic trunk. A comparison between the time integrals of the velocities in gates 9 (centre line), 4 and 13 (off centre) and the time integral of the weighted mean of the velocities of all gates correlated with r=0.90, SEE=1.05 (gate 9), r=0.90, SEE 0.88 (gate 4) and r=0.92, SEE 0.94 (gate 13). A better correlation (r=0.96, SEE=0.60) was found between the linear mean of all gates and the weighted mean. These results show that Doppler measurements in single small gates are not appropriate to determine the average cross-sectional blood flow velocity in healthy adults

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:National licences > 142-005
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Language:English
Date:1 November 1984
Deposited On:18 Oct 2018 11:33
Last Modified:24 Nov 2018 02:57
Publisher:Oxford University Press
ISSN:0195-668X
OA Status:Green
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1093/oxfordjournals.eurheartj.a061596
Related URLs:https://www.swissbib.ch/Search/Results?lookfor=nationallicenceoxford101093oxfordjournalseurheartja061596 (Library Catalogue)

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