公开(公告)号：US20220104789A1

公开(公告)日：2022-04-07

申请号：US17553296

申请日：2021-12-16

Applicant: FUJIFILM Corporation

Inventor： Tsuyoshi MATSUMOTO ,  Yoshiro IMAI ,  Rika TASHIRO

IPC: A61B8/06 ,  A61B8/14 ,  A61B8/00

Abstract: An ultrasound diagnostic apparatus (1) includes a transducer array (2); a transmission and reception circuit (5) that causes the transducer array (2) to transmit an ultrasound beam toward a subject, and processes a reception signal output from the transducer array (2) that has received an ultrasound echo from the subject to generate a sound ray signal; an image generation unit (6) that generates an ultrasound image on the basis of the sound ray signal; a display device (8) that displays the ultrasound image; a blood vessel extraction unit (9) that extracts a blood vessel region by analyzing the ultrasound image; a highlight region setting unit (11) that sets at least one highlight region extending in a depth direction of the ultrasound image; and a highlighting unit (12) that highlights the blood vessel region which is extracted by the blood vessel extraction unit (9) and overlaps the at least one highlight region, on the display device (8).

公开(公告)号：US20210077066A1

公开(公告)日：2021-03-18

申请号：US17105785

申请日：2020-11-27

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: A61B8/14 ,  A61B8/00

Abstract: An ultrasound diagnostic apparatus 1 sequentially displays ultrasound images of a plurality of continuous frames during imaging on a display unit 8, and includes a measurement target recognition unit 9 that automatically recognizes a measurement target included in an ultrasound image of a present frame displayed on the display unit 8, a measurement algorithm setting unit 12 that sets a measurement algorithm for the measurement target recognized by the measurement target recognition unit 9, and a measurement unit 10 that measures the measurement target based on the measurement algorithm set by the measurement algorithm setting nit 12 and displays a measurement result on the display unit 8 to be superimposed on the ultrasound image of the present frame.

公开(公告)号：US20180249889A1

公开(公告)日：2018-09-06

申请号：US15973534

申请日：2018-05-08

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: A61B1/00 ,  A61B1/06 ,  A61B1/045

CPC classification number: A61B1/00009 ,  A61B1/0005 ,  A61B1/043 ,  A61B1/045 ,  A61B1/0638 ,  G02B23/2484

Abstract: The endoscope system includes an image acquiring unit that acquires a first image and a second image, the first image being obtained by imaging an observation target by using first illumination light, the second image being obtained by imaging the observation target by using second illumination light that is different from the first illumination light at a different timing from the first image; an alignment unit that aligns the first image and the second image; and an accuracy changing unit that changes an accuracy of the alignment in accordance with at least a structure of interest to which an attention is paid in the observation target.

公开(公告)号：US20180220998A1

公开(公告)日：2018-08-09

申请号：US15941178

申请日：2018-03-30

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: A61B8/00 ,  A61B8/08 ,  A61B8/14

CPC classification number: A61B8/54 ,  A61B8/08 ,  A61B8/085 ,  A61B8/0883 ,  A61B8/14 ,  A61B8/485 ,  A61B8/5276 ,  A61B8/5284 ,  A61B8/543

Abstract: Periodic displacement occurs in body tissue due to heartbeat. A peak level D of the movement distance of the body tissue is detected (Step 21), and a heartbeat cycle T is calculated from a frequency spectrum (Steps 22 and 23). By dividing twice the peak level D by the heartbeat cycle T, the moving velocity of the body tissue in a unit heartbeat cycle is calculated (Step 24). By dividing the moving velocity by a frame rate r, an average movement distance of the body tissue between frames is calculated (Step 25). In a case where the average movement distance is smaller than a predetermined threshold value, a time interval between the frames used for the calculation of the movement distance is extended (being Step 26 NO, Step 27).

公开(公告)号：US20180140281A1

公开(公告)日：2018-05-24

申请号：US15860974

申请日：2018-01-03

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: A61B8/08 ,  A61B8/00

CPC classification number: A61B8/5207 ,  A61B8/14 ,  A61B8/463 ,  A61B8/469 ,  A61B8/54 ,  A61B8/56 ,  G06T2207/10132

Abstract: An ultrasound diagnostic apparatus includes: an ultrasound probe; an imaging unit that transmits and receives an ultrasound beam to and from a subject using the ultrasound probe and converts a received signal output from the ultrasound probe into an image to generate an ultrasound image of the subject, according to set imaging conditions; a probe state determination unit that determines whether the ultrasound probe is in an aerial emission state or a contact state with the subject; and an apparatus control unit that changes the imaging conditions in a case in which the probe state determination unit determines that the ultrasound probe has been changed from the contact state with the subject to the aerial emission state and controls the imaging unit such that the ultrasound image is generated using the changed imaging conditions.

公开(公告)号：US20140023258A1

公开(公告)日：2014-01-23

申请号：US14033628

申请日：2013-09-23

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: G06T5/00

CPC classification number: G06T5/002 ,  A61B6/4216 ,  A61B6/4291 ,  A61B6/469 ,  A61B6/50 ,  A61B6/5252 ,  A61B6/5258 ,  G06T2207/10116 ,  G06T2207/30004

Abstract: A peak position and a peak width of a frequency spectrum corresponding to a periodic pattern are detected by performing, with respect to at least one direction, frequency analysis on an image signal representing an image including the periodic pattern. The passband characteristics of a one-dimensional filter suppressing a spatial frequency component corresponding to the periodic pattern in the image signal are determined based on the detected peak position and the detected peak width.

Abstract translation: 通过对表示包含周期性图案的图像的图像信号进行关于至少一个方向的频率分析来检测与周期性图案相对应的频谱的峰值位置和峰值宽度。 基于检测到的峰值位置和检测到的峰值宽度，确定抑制与图像信号中的周期性图案对应的空间频率成分的一维滤波器的通带特性。

公开(公告)号：US20230064315A1

公开(公告)日：2023-03-02

申请号：US18046786

申请日：2022-10-14

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: A61B8/00 ,  A61B8/08 ,  A61B8/14

Abstract: Periodic displacement occurs in body tissue due to heartbeat. A peak level D of the movement distance of the body tissue is detected (Step 21), and a heartbeat cycle T is calculated from a frequency spectrum (Steps 22 and 23). By dividing twice the peak level D by the heartbeat cycle T, the moving velocity of the body tissue in a unit heartbeat cycle is calculated (Step 24). By dividing the moving velocity by a frame rate r, an average movement distance of the body tissue between frames is calculated (Step 25). In a case where the average movement distance is smaller than a predetermined threshold value, a time interval between the frames used for the calculation of the movement distance is extended (being Step 26 NO, Step 27).

公开(公告)号：US20210113196A1

公开(公告)日：2021-04-22

申请号：US17134887

申请日：2020-12-28

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: A61B8/00 ,  G06F3/041 ,  G06F3/0488

Abstract: An ultrasound diagnostic apparatus 1 includes a display unit 8, an operating unit 15, a measurement position designation reception unit 14 that receives designation of a measurement position on an ultrasound image from a user through the operating unit 15, a measurement target recognition unit 9 that recognizes a measurement target included in the ultrasound image of a recognition range decided based on the received measurement position, a measurement algorithm setting unit 12 that sets a measurement algorithm based on the recognized measurement target, and a measurement unit 10 that measures the measurement target based on the set measurement algorithm and displays a measurement result on the display unit 8.

公开(公告)号：US20170086784A1

公开(公告)日：2017-03-30

申请号：US15377534

申请日：2016-12-13

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

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

CPC classification number: A61B8/14 ,  A61B8/06 ,  A61B8/4254 ,  A61B8/461 ,  A61B8/488 ,  A61B8/5207 ,  G01S7/52026 ,  G01S15/8915 ,  G01S15/8988

Abstract: There are provided an acoustic wave diagnostic apparatus capable of shortening the time until a color image is obtained and a control method thereof. Processing for transmitting an ultrasound pulse (43) converging on a focusing position (41) in the same direction of a subject from acoustic wave transducers to be driven, among a plurality of ultrasound transducers (20 to 32) included in an ultrasound probe, while sequentially updating the acoustic wave transducers to be driven is performed multiple times for the same ultrasound transducers (22 to 28). An acoustic wave echo signal group is obtained by receiving an ultrasound echo (44) of an observation target position (42) in the ultrasound transducers (22 to 28). An autocorrelation operation is performed on a signal, which is obtained by correcting the positional deviation of an acoustic wave echo signal group based on the positional deviation between the focusing position (41) and the observation target position (42), and an ultrasound echo signal without positional deviation, and a Doppler shift signal indicating the speed of the observation target position (42) is generated.

公开(公告)号：US20140363071A1

公开(公告)日：2014-12-11

申请号：US14468627

申请日：2014-08-26

Applicant: FUJIFILM Corporation

Inventor： Yoshiro IMAI

IPC: G06T7/00 ,  G06T5/00

CPC classification number: G06T7/0012 ,  A61B6/025 ,  A61B6/4291 ,  A61B6/5205 ,  A61B6/5252 ,  G06T5/002 ,  G06T5/10 ,  G06T2207/10116 ,  G06T2207/30004

Abstract: A first frequency analysis unit performs frequency analysis on a reference radiographic image of plural radiographic images obtained by tomosynthesis imaging using a grid, and obtains a frequency characteristic of a periodic pattern caused by the grid and a frequency analysis result. A second frequency analysis unit performs, based on the frequency analysis result, limited frequency analysis on a radiographic image or images other than the reference radiographic image, and obtains a frequency characteristic of the periodic pattern about the radiographic image or images. A suppression unit performs, based on the frequency characteristic, processing for suppressing the periodic pattern in all of the radiographic images.

Abstract translation: 第一频率分析单元对通过使用网格的层析成像获得的多个放射线照相图像的参考放射线图像进行频率分析，并且获得由网格引起的周期性图案的频率特性和频率分析结果。 第二频率分析单元基于频率分析结果对放射线图像或参考放射线照相图像以外的图像进行有限频率分析，并且获得关于放射线图像或图像的周期性图案的频率特性。 抑制单元基于频率特性执行用于抑制所有放射线照相图像中的周期性图案的处理。