Abstract
Current vector flow systems are limited in their
detectable range of blood flow velocities. Previous work on
phantoms has shown that the velocity range can be extended
using synthetic aperture directional beamforming combined with
an adaptive multi-lag approach. This paper presents a first invivo
example with a high dynamic velocity range. Velocities
with an order of magnitude apart are detected on the femoral
artery of a 41 years old healthy individual. Three distinct heart
cycles are captured during a 3 secs acquisition. The estimated
vector velocities are compared against each other within the heart
cycle. The relative standard deviation of the measured velocity
magnitude between the three peak systoles was found to be 5.11%
with a standard deviation on the detected angle of 1.06◦
. In the
diastole, it was 1.46% and 6.18◦
, respectively. Results proves
that the method is able to estimate flow in-vivo and provide
quantitative results in a high dynamic velocity range. Providing
velocity measurements during the whole cardiac cycle for both
arteries and veins
Original language | English |
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Title of host publication | Proceedings of IEEE International Ultrasonics Symposium |
Number of pages | 4 |
Publisher | IEEE |
Publication date | 2015 |
ISBN (Print) | 9781479981823 |
DOIs | |
Publication status | Published - 2015 |
Event | 2015 IEEE International Ultrasonics Symposium - Taipei, Taiwan, Province of China Duration: 21 Oct 2015 → 24 Oct 2015 https://ieeexplore.ieee.org/xpl/conhome/7315052/proceeding |
Conference
Conference | 2015 IEEE International Ultrasonics Symposium |
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Country/Territory | Taiwan, Province of China |
City | Taipei |
Period | 21/10/2015 → 24/10/2015 |
Internet address |