NDLI: A Dual Transducer Ultrasound System for Quantitative Doppler Measurements

Content Provider	IEEE Xplore Digital Library
Author	Ricci, S. Bassi, L. Dallai, A. Boni, E. Tortoli, P.
Copyright Year	2007
Description	Author affiliation: Univ. degli studi di Firenze, Florence (Ricci, S.; Bassi, L.; Dallai, A.; Boni, E.; Tortoli, P.)
Abstract	The possibility of accurately measuring the velocity of blood flowing in human vessels represents a significant opportunity for hemodynamic research and diagnosis. The ultrasound (US) investigation represents a non invasive, diffuse and low cost method capable of evaluating the blood velocity by exploiting the Doppler effect. Unfortunately, the accuracy attainable with standard US equipment is heavily limited by the difficulty of assessing the Doppler angle during in-vivo investigations. In this paper a house-made US system for quantitative velocity measurements is presented. This system relies on an open, full digital architecture appositely designed for research purposes. In particular, the system capability of simultaneously controlling two US probes is shown suitable to implement a novel measurement method which overcomes the above Doppler angle ambiguity. The results of recent in-vitro experiments are reported, showing a velocity measurement accuracy of 0.5% and a precision of 7%.
Starting Page	2718
Ending Page	2723
File Size	1593590
Page Count	6
File Format	PDF
ISBN	9781424407545
DOI	10.1109/ISIE.2007.4375038
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-06-04
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Ultrasonic transducers Ultrasonic imaging Doppler measurements Velocity measurement Blood Ultrasonic variables measurement Humans Hemodynamics Costs Doppler effect
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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