US 12,343,208 B2
Ultrasound imaging using a bias-switchable row-column array transducer
Roger Zemp, Edmonton (CA)
Filed by Roger Zemp, Edmonton (CA)
Filed on Sep. 9, 2022, as Appl. No. 17/941,341.
Claims priority of provisional application 63/242,339, filed on Sep. 9, 2021.
Prior Publication US 2023/0083086 A1, Mar. 16, 2023
Int. Cl. A61B 8/00 (2006.01); G01S 7/52 (2006.01); G01S 15/89 (2006.01); G06T 5/20 (2006.01); G06T 5/50 (2006.01); G06T 5/77 (2024.01)
CPC A61B 8/4488 (2013.01) [A61B 8/481 (2013.01); A61B 8/5269 (2013.01); G01S 7/52046 (2013.01); G01S 15/8988 (2013.01); G06T 5/20 (2013.01); G06T 5/50 (2013.01); G06T 5/77 (2024.01); G06T 2207/10136 (2013.01); G06T 2207/20216 (2013.01); G06T 2207/30104 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for ultrasound imaging using a bias-switchable row-column array transducer having a plurality of row electrodes and a plurality of column electrodes that are not parallel to the row electrodes, the method comprising:
performing one or more row transmit events, each transmit event comprising:
identifying groups of row electrodes within the plurality of row electrodes;
applying a bias voltage pattern to each group of row electrodes derived from an invertible matrix, the invertible matrix having positive and negative values;
transmitting a waveform along each of the plurality of row electrodes, wherein, for a negative value of the invertible matrix, the waveform is inverted; and
recording received column signals from the plurality of column electrodes;
obtaining a column-acquired dataset for each of the groups of row electrodes using the received column signals from each of the one or more row transmit events;
performing one or more transmit events, each transmit event comprising:
identifying groups of column electrodes within the plurality of column electrodes;
applying a bias voltage pattern to each group of column electrodes derived from an invertible matrix, the invertible matrix having positive and negative values;
transmitting a waveform along each of the plurality of column electrodes; and
recording received row signals from the plurality of row electrodes; and
obtaining a column channel dataset for each of the groups of column electrodes using the received row signals; and
generating an ultrasonic image based on the row channel data set and the column channel dataset.