Abstract
Experimental 3-D vector flow estimates obtained with a 62+62 2-D row-column (RC) array with integrated
apodization are presented. A transverse oscillation (TO) velocity estimator is implemented on a 3.0 MHz RC array, to yield realtime 3-D vector flow in a cross-sectional scan plane at 750 frames per second. The method is validated in a straight-vessel phantom (Ø = 8 mm) connected to a flow pump capable of generating timevarying carotid waveforms. The out-of-plane velocity component perpendicular to the cross section of the vessel and the crosssectional area is used to estimate volumetric flow rates. The flow
rate measured from five cycles is 2.3 mL/stroke ± 0.1 mL/stroke giving a negative 9.7% bias compared to the pump settings. It is concluded that 124 elements are sufficient to estimate 3-D vector flow, if they are positioned in a row-column wise manner.
apodization are presented. A transverse oscillation (TO) velocity estimator is implemented on a 3.0 MHz RC array, to yield realtime 3-D vector flow in a cross-sectional scan plane at 750 frames per second. The method is validated in a straight-vessel phantom (Ø = 8 mm) connected to a flow pump capable of generating timevarying carotid waveforms. The out-of-plane velocity component perpendicular to the cross section of the vessel and the crosssectional area is used to estimate volumetric flow rates. The flow
rate measured from five cycles is 2.3 mL/stroke ± 0.1 mL/stroke giving a negative 9.7% bias compared to the pump settings. It is concluded that 124 elements are sufficient to estimate 3-D vector flow, if they are positioned in a row-column wise manner.
| 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 | 2016 |
| DOIs | |
| Publication status | Published - 2016 |
| Event | 2016 IEEE International Ultrasonics Symposium - Convention Center Vinci Tours, Tours, France Duration: 18 Sept 2016 → 21 Sept 2016 https://ieeexplore.ieee.org/xpl/conhome/7589760/proceeding |
Conference
| Conference | 2016 IEEE International Ultrasonics Symposium |
|---|---|
| Location | Convention Center Vinci Tours |
| Country/Territory | France |
| City | Tours |
| Period | 18/09/2016 → 21/09/2016 |
| Internet address |