公开(公告)号：US20180271480A1

公开(公告)日：2018-09-27

申请号：US15762628

申请日：2016-04-28

Applicant: Hitachi, Ltd.

Inventor： Kenichi KAWABATA ,  Hideki YOSHIKAWA ,  Rei ASAMI ,  Takahide TERADA ,  Kazuhiro YAMANAKA ,  Yushi TSUBOTA ,  Wenjing WU

IPC: A61B8/00 ,  A61B8/14 ,  A61B8/08

CPC classification number: A61B8/406 ,  A61B8/0825 ,  A61B8/14 ,  A61B8/15 ,  A61B8/4209 ,  A61B8/4281 ,  A61B8/4494 ,  A61B8/5207 ,  A61B8/5246 ,  A61B8/54 ,  A61B8/543

Abstract: An ultrasonic imaging device according to the present invention includes: a container provided with an opening for inserting a target region of a subject; and a transmission/reception unit that transmits ultrasound to the target region inserted into the container filled with a liquid and receives the ultrasound that penetrates the target region or is reflected from the target region. The container has a pressure reducing unit that holds the target region in the container by reducing a pressure in the container of which the opening is covered with the target region. According to the present invention, since it is possible to maintain a shape close to a predetermined shape when the target region of a breast or the like is inserted into a container filled with the liquid, it is possible to measure the target region with high accuracy by transmitting and receiving ultrasound.

公开(公告)号：US20200229787A1

公开(公告)日：2020-07-23

申请号：US16647164

申请日：2018-10-16

Applicant: Hitachi, Ltd.

Inventor： Rei ASAMI

IPC: A61B8/06 ,  A61B8/14 ,  A61B8/08 ,  A61B8/00

Abstract: Provided is a technique capable of preventing a deterioration of a frame rate or a temporal resolution and estimating a blood flow velocity in a wide velocity range. A method is based on an unequal interval transmission method, and calculates a blood flow velocity by using a temporally adjacent received signal set and a temporally discontinuous received signal set, among a plurality of received signals obtained via a plurality of times of transmission in one transmission direction. When a number of the adjacent received signal set and a number of the temporally discontinuous received signal set are the same, an expansion of the velocity range similar to an unequal interval transmission in related art can be realized and the frame rate can be improved.