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DE-627 |
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231222s2001 xx ||||| 00| ||eng c |
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|a pubmed25n0380.xml
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|a (DE-627)NLM113790163
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|a (NLM)11477757
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Tortoli, P
|e verfasserin
|4 aut
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| 245 |
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|a A simplified approach for real-time detection of arterial wall velocity and distension
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|c 2001
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 06.09.2001
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|a Date Revised 15.09.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Arterial stiffness is known to increase with age and with many vascular diseases, but its noninvasive assessment in patients still represents a difficult task. The measurement of diameter change during the cardiac cycle (distension) has been proposed as a means to estimate arterial compliance and stiffness. Therefore, we have developed a simple PC-based device and algorithm for noninvasive quantification of vessel wall motion and diameter change in humans. This goal is achieved in real-time by processing the base-band signals from a commercial ultrasound Doppler system. Real-time operation is of crucial importance, because it allows a rapid achievement of optimal measurement conditions. The system was evaluated in a laboratory using a string phantom and was tested on the carotid arteries of 10 volunteers. Wall velocities from 0.05 to 600 mm/s and displacements lower than 2 microns were detected with phantoms. The measured carotid diameter change in the volunteers ranged from 7.5 to 11.8% (mean = 9.8%) and agrees closely with values reported in the literature. The difference between values taken one hour apart ranged from 0.2 to 0.5%. We conclude that the new system provides rapid, accurate, and repeatable measurements of vessel distension in humans
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| 650 |
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|a Journal Article
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| 650 |
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4 |
|a Research Support, Non-U.S. Gov't
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| 700 |
1 |
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|a Bettarini, R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guidi, F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Andreuccetti, F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Righi, D
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1999
|g 48(2001), 4 vom: 01. Juli, Seite 1005-12
|w (DE-627)NLM098181017
|x 0885-3010
|7 nnns
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| 773 |
1 |
8 |
|g volume:48
|g year:2001
|g number:4
|g day:01
|g month:07
|g pages:1005-12
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|a AR
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| 952 |
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|d 48
|j 2001
|e 4
|b 01
|c 07
|h 1005-12
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