Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method

We have developed a blood flow velocimeter to measure maximum blood flow velocity (MBFV) in carotid, brachial and femoral arteries simultaneously by using a Doppler ultrasound technique. This measurement system is based on a continuous wave Doppler ultrasound method with two semicircular piezoelectr...

Full description

Bibliographic Details
Main Authors:	Noor Azmi, Azran Azhim, Hirao, Yuji, Kinouchi, Yohsuke, Yamaguchi, Hisao, Yoshizaki, Kazuo
Format:	Conference or Workshop Item
Language:	English
Published:	IEEE 2004
Subjects:	TP248.13 Biotechnology
Online Access:	http://irep.iium.edu.my/43674/ http://irep.iium.edu.my/43674/ http://irep.iium.edu.my/43674/ http://irep.iium.edu.my/43674/1/Variations_of_the_maximum_blood_flow_velocity_in_the_carotid%2C_brachial_and_femoral_arteries_in_a_passive_postural_changes_by_a_Doppler_ultrasound_method..pdf

id	iium-43674
recordtype	eprints
spelling	iium-436742015-08-04T03:36:36Z http://irep.iium.edu.my/43674/ Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method Noor Azmi, Azran Azhim Hirao, Yuji Kinouchi, Yohsuke Yamaguchi, Hisao Yoshizaki, Kazuo TP248.13 Biotechnology We have developed a blood flow velocimeter to measure maximum blood flow velocity (MBFV) in carotid, brachial and femoral arteries simultaneously by using a Doppler ultrasound technique. This measurement system is based on a continuous wave Doppler ultrasound method with two semicircular piezoelectric (PZT) transducers, one continuously transmitting ultrasound, and the other continuously receiving the echoes. This report is to investigate variations of MBFV in 3 arteries of 5 healthy normal male volunteers during passive postural changes in supine, 90 degrees head-down-tilt (HDT) and 90 degrees head-up-tilt (HUT) respectively. As a result of these measurements, we could confirm that MBFV in those arteries especially in brachial and femoral are increased by supine to HDT posture and are decreased by supine to HUT posture. But, it's just changed a little in carotid artery. An increasing and a decreasing in MBFV are expected to be an effect of venous pressure and a constant MBFV in carotid artery is caused a cerebral autoregulation. IEEE 2004 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/43674/1/Variations_of_the_maximum_blood_flow_velocity_in_the_carotid%2C_brachial_and_femoral_arteries_in_a_passive_postural_changes_by_a_Doppler_ultrasound_method..pdf Noor Azmi, Azran Azhim and Hirao, Yuji and Kinouchi, Yohsuke and Yamaguchi, Hisao and Yoshizaki, Kazuo (2004) Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method. In: 26th Annual Conference of IEEE Engineering in Medicine and Biology Society (EMBS2004), 1st-5th Sept. 2004, San Francisco, California, USA. http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1404041 DOI:10.1109/IEMBS.2004.1404041
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TP248.13 Biotechnology
spellingShingle	TP248.13 Biotechnology Noor Azmi, Azran Azhim Hirao, Yuji Kinouchi, Yohsuke Yamaguchi, Hisao Yoshizaki, Kazuo Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method
description	We have developed a blood flow velocimeter to measure maximum blood flow velocity (MBFV) in carotid, brachial and femoral arteries simultaneously by using a Doppler ultrasound technique. This measurement system is based on a continuous wave Doppler ultrasound method with two semicircular piezoelectric (PZT) transducers, one continuously transmitting ultrasound, and the other continuously receiving the echoes. This report is to investigate variations of MBFV in 3 arteries of 5 healthy normal male volunteers during passive postural changes in supine, 90 degrees head-down-tilt (HDT) and 90 degrees head-up-tilt (HUT) respectively. As a result of these measurements, we could confirm that MBFV in those arteries especially in brachial and femoral are increased by supine to HDT posture and are decreased by supine to HUT posture. But, it's just changed a little in carotid artery. An increasing and a decreasing in MBFV are expected to be an effect of venous pressure and a constant MBFV in carotid artery is caused a cerebral autoregulation.
format	Conference or Workshop Item
author	Noor Azmi, Azran Azhim Hirao, Yuji Kinouchi, Yohsuke Yamaguchi, Hisao Yoshizaki, Kazuo
author_facet	Noor Azmi, Azran Azhim Hirao, Yuji Kinouchi, Yohsuke Yamaguchi, Hisao Yoshizaki, Kazuo
author_sort	Noor Azmi, Azran Azhim
title	Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method
title_short	Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method
title_full	Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method
title_fullStr	Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method
title_full_unstemmed	Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method
title_sort	variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a doppler ultrasound method
publisher	IEEE
publishDate	2004
url	http://irep.iium.edu.my/43674/ http://irep.iium.edu.my/43674/ http://irep.iium.edu.my/43674/ http://irep.iium.edu.my/43674/1/Variations_of_the_maximum_blood_flow_velocity_in_the_carotid%2C_brachial_and_femoral_arteries_in_a_passive_postural_changes_by_a_Doppler_ultrasound_method..pdf
first_indexed	2023-09-18T21:02:10Z
last_indexed	2023-09-18T21:02:10Z
_version_	1777410696401649664

Variations of the maximum blood flow velocity in the carotid, brachial and femoral arteries in a passive postural changes by a Doppler ultrasound method

Similar Items