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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed24n0529.xml
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|a (DE-627)NLM158544986
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|a (NLM)16245599
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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 Cinthio, Magnus
|e verfasserin
|4 aut
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|a Evaluation of an ultrasonic echo-tracking method for measurements of arterial wall movements in two dimensions
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|c 2005
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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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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 29.11.2005
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|a Date Revised 10.12.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a The longitudinal movement of blood vessel walls has so far gained little or no attention, as it has been presumed that these movements are of a negligible magnitude. However, modern high-resolution ultrasound scanners can demonstrate that the inner layers of the arterial wall exhibit considerable movements in the longitudinal direction. This paper evaluates a new, noninvasive, echo-tracking technique, which simultaneously can track both the radial and the longitudinal movements of the arterial wall with high resolution in vivo. Initially, the method is evaluated in vitro using a specially designed ultrasound phantom, which is attached to and moved by an X-Y system, the movement of which was compared with two high-resolution triangulation lasers. The results show an inaccuracy of 2.5% full scale deflection (fsd), reproducibility of 12 microm and a resolution of 5 microm, which should be more than sufficient for in vivo studies. The ability of the method is also demonstrated in a limited in vivo study in which a preselected part of the inner vessel wall of the right common carotid artery of a healthy volunteer is tracked in two dimensions over many cardiac cycles. The results show well reproducible x-y movement loops in which the recorded radial and longitudinal movements both are of the magnitude millimetre
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|a Evaluation Study
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|a Journal Article
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Validation Study
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| 700 |
1 |
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|a Ahlgren, Asa Rydén
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jansson, Tomas
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Eriksson, Anders
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Persson, Hans W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lindström, Kjell
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t IEEE transactions on ultrasonics, ferroelectrics, and frequency control
|d 1986
|g 52(2005), 8 vom: 08. Aug., Seite 1300-11
|w (DE-627)NLM098181017
|x 1525-8955
|7 nnns
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| 773 |
1 |
8 |
|g volume:52
|g year:2005
|g number:8
|g day:08
|g month:08
|g pages:1300-11
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|a AR
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|d 52
|j 2005
|e 8
|b 08
|c 08
|h 1300-11
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