US 11,690,597 B2
Ultrasonic diagnostic apparatus
Hiroki Yoshiara, Utsunomiya (JP); Tomohisa Imamura, Nasushiobara (JP); and Akihiro Kakee, Nasushiobara (JP)
Assigned to CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed by CANON MEDICAL SYSTEMS CORPORATION, Otawara (JP)
Filed on Feb. 26, 2020, as Appl. No. 16/802,324.
Claims priority of application No. 2019-033906 (JP), filed on Feb. 27, 2019.
Prior Publication US 2020/0268350 A1, Aug. 27, 2020
Int. Cl. A61B 8/00 (2006.01); A61B 8/08 (2006.01); G06T 7/00 (2017.01); G01S 15/89 (2006.01)
CPC A61B 8/469 (2013.01) [A61B 8/5207 (2013.01); G01S 15/8977 (2013.01); G06T 7/0012 (2013.01); G06T 2207/10132 (2013.01); G06T 2207/30004 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An ultrasonic diagnostic apparatus, comprising:
a frequency characteristic analysis circuit configured to perform a frequency analysis on a first reception signal corresponding to a region of interest of each depth, of multiple depths, among reception signals of ultrasonic waves, and acquire a frequency characteristic of each depth;
a filter setting circuit configured to set a reception filter of each depth based on the acquired frequency characteristic of each depth such that a signal of each depth resulting from application of the reception filter has a predetermined frequency characteristic;
a filter processing circuit configured to apply the set reception filter of each depth to a second reception signal corresponding to the region of interest of each depth among the reception signals, the second reception signal being after the first reception signal, and convert the second reception signal into a third reception signal corresponding to the region of interest of each depth among the reception signals; and
an image generating circuit configured to generate an ultrasonic image in substantially real time based on the converted third reception signal corresponding to the region of interest of each depth of the multiple depths, wherein
the frequency characteristic analysis circuit is further configured to set, prior to the frequency analysis of the reception signals in the region of interest of each depth being performed, the region of interest within an imaging region of the ultrasonic image to include a center of the imaging region in a scanning direction.