公开(公告)号：US20240000416A1

公开(公告)日：2024-01-04

申请号：US18466553

申请日：2023-09-13

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroki YOSHIARA ,  Tomohisa IMAMURA ,  Koichiro KURITA

IPC: A61B8/06 ,  A61B8/08

CPC classification number: A61B8/06 ,  A61B8/481 ,  A61B8/5246 ,  A61B8/5223 ,  A61B8/488

Abstract: An ultrasound diagnosis apparatus includes: a transmission and reception circuitry configured to perform, via an ultrasound probe, a first ultrasound scan on a first region in a subject who has a contrast agent injected and a second ultrasound scan on at least a part of a second region in the subject overlapping with the first region, the second ultrasound scan including transmitting and receiving two types of ultrasound waves of which one or both of amplitude levels and phases are different from each other; and processing circuitry configured to generate a blood flow image corresponding to one frame by implementing a Doppler method on the basis of a data sequence including reception data obtained from the first ultrasound scan performed multiple times in mutually the same position within the first region to have the second ultrasound scan performed in-between and to generate a contrast-enhanced image based on a result of the second ultrasound scan performed at least one time.

公开(公告)号：US20230225709A1

公开(公告)日：2023-07-20

申请号：US18154332

申请日：2023-01-13

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroki YOSHIARA ,  Masaki WATANABE

IPC: A61B8/08 ,  A61B8/06

CPC classification number: A61B8/481 ,  A61B8/06

Abstract: A medical image processing device of an embodiment includes processing circuitry. The processing circuitry is configured to acquire a contrast-enhanced image of a subject at least after a portal vein dominant phase among contrast-enhanced images of the subject to which a contrast medium has been administered in a process of reaching a post-vascular phase from an artery dominant phase via the portal vein dominant phase, and detect a site where the contrast medium has been washed out as a defective part in the contrast-enhanced image after the portal vein dominant phase.

公开(公告)号：US20210161511A1

公开(公告)日：2021-06-03

申请号：US17105772

申请日：2020-11-27

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Hiroki YOSHIARA ,  Tomohisa IMAMURA ,  Akihiro KAKEE ,  Koichiro KURITA

IPC: A61B8/08 ,  A61B8/00

Abstract: The ultrasonic diagnostic apparatus according to the present embodiment includes an evaluating circuit, a frequency setting circuit, and a drive circuit. The evaluating circuit is configured to analyze a received signal of a predetermined depth based on received signals of ultrasonic wave to evaluate a degree of beam penetration to a deep portion. The frequency setting circuit is configured to set a transmission frequency based on a result evaluated by the evaluating circuit. The drive circuit is configured to generate a drive pulse based on the set transmission frequency.

公开(公告)号：US20240023940A1

公开(公告)日：2024-01-25

申请号：US18372442

申请日：2023-09-25

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Ryota OSUMI ,  Tomohisa IMAMURA ,  Kuramitsu NISHIHARA ,  Hiroki YOSHIARA ,  Hiroaki ISHIKAWA ,  Yuko TAKADA

IPC: A61B8/08 ,  A61B8/06 ,  A61B8/00 ,  G01S7/52

CPC classification number: A61B8/5246 ,  A61B8/06 ,  A61B8/4416 ,  G01S7/52085 ,  A61B8/463 ,  A61B8/5207 ,  A61B8/5223 ,  A61B8/485 ,  A61B8/488 ,  G01S7/52042 ,  G01S15/8979

Abstract: An ultrasound diagnostic apparatus according to an embodiment includes image processing circuitry. The image processing circuitry acquires, based on a result of ultrasound scanning performed on a subject, blood flow information including a value that indicates a blood flow at each position within the subject and tissue property information including a value that indicates tissue properties at each position within the subject. The image processing circuitry generates a first image in which a difference in value in the blood flow information is represented by at least a difference in hue and a second image in which a difference in value in the tissue property information is represented by a difference other than the difference in hue. The image processing circuitry generates a combined image by combining the first image and the second image.