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    Systems and methods for vascular image co-registration
    22.
    发明授权
    Systems and methods for vascular image co-registration 有权

    公开(公告)号：US12087000B2

    公开(公告)日：2024-09-10

    申请号：US17680482

    申请日：2022-02-25

    Applicant: BOSTON SCIENTIFIC SCIMED, INC.

    Inventor： Wenguang Li ,  Kevin Bloms ,  Matthew R. Huston

    IPC: G06T7/38 ,  G06T7/00

    CPC classification number: G06T7/38 ,  G06T7/0014 ,  G06T2207/10016 ,  G06T2207/30101

    Abstract: This disclosure provides alternative medical imaging systems and methods for vascular imaging co-registration. Methods include obtaining extravascular imaging data of a portion of a blood vessel including an extravascular image showing an intravascular imaging device disposed within the vessel with an imaging element disposed at a starting location for a translation procedure. The extravascular image also includes an extravascular contrast image showing the portion of the blood vessel with contrast showing a visualized anatomical landmark. Intravascular imaging data is obtained during the translation procedure that includes one or more intravascular images showing a detected anatomical landmark. The starting location and the ending location of the imaging element on the extravascular imaging data is marked, and the predicted location of the detected anatomical landmark on the extravascular imaging data is marked. The predicted location of the detected anatomical landmark is then aligned with the visualized anatomical landmark.

    SYSTEMS AND METHODS FOR INTRAVASCULAR VISUALIZATION
    23.
    发明公开
    SYSTEMS AND METHODS FOR INTRAVASCULAR VISUALIZATION 审中-公开

    公开(公告)号：US20230380806A1

    公开(公告)日：2023-11-30

    申请号：US18202526

    申请日：2023-05-26

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Haruka Imura ,  Wenguang Li ,  Erik Stephen Freed ,  Jennifer Gibbs ,  Heather Drury ,  Judith Tiferes Wang

    IPC: A61B8/00 ,  G06T7/00

    CPC classification number: A61B8/463 ,  G06T7/0012 ,  G06T2207/30101 ,  G06T2207/10132

    Abstract: Embodiments herein relate to intravascular imaging display systems and related methods. In an embodiment, an intravascular imaging display system is included having a control circuit and a video output circuit. The video output circuit can be configured to generate a display output including a user interface. The user interface can include graphical elements related to a vessel being imaged. The graphical elements can include a first detected feature portion at least partially defined by a first graphic indicator and a second detected feature portion at least partially defined by a second graphic indicator. The first graphic indicator can be visually distinct from the second graphic indicator. The first detected feature portion and the second detected feature portion can be assigned to represent one or more locations along a vessel wall by the control circuit based on a degree of attenuation of an ultrasound return signal crossing a threshold value.

    Methods for assessing a vessel with sequential physiological measurements
    25.
    发明授权
    Methods for assessing a vessel with sequential physiological measurements 有权

    公开(公告)号：US11666232B2

    公开(公告)日：2023-06-06

    申请号：US16384394

    申请日：2019-04-15

    Applicant: BOSTON SCIENTIFIC SCIMED, INC.

    Inventor： Wenguang Li

    IPC: A61B5/0215 ,  A61B6/12 ,  A61B5/055 ,  A61B5/00 ,  A61B6/00

    CPC classification number: A61B5/0215 ,  A61B5/055 ,  A61B5/6851 ,  A61B6/12 ,  A61B6/463 ,  A61B6/467

    Abstract: A method, device, and system for evaluating a vessel of a patient, and in particular the hemodynamic impact of a stenosis within the vessel of a patient. Proximal and distal pressure measurements are made using first and second instrument while the first instrument is moved longitudinally in the vessel and the second instrument remains in a fixed position. A series of pressure ratio values are calculated, and a pressure ratio curve is generated. The pressure ratio curve may be output to a display. One or more stepped change in the pressure ratio curve are identified using an Automatic Step Detection algorithm. An image is obtained showing the position of the first instrument within the vessel that corresponds to the identified stepped change. The image is registered to the identified stepped change in the pressure ratio curve. The image may be output to the display.

    MEDICAL DEVICE SYSTEMS FOR AUTOMATIC LESION ASSESSMENT
    26.
    发明申请
    MEDICAL DEVICE SYSTEMS FOR AUTOMATIC LESION ASSESSMENT 有权

    公开(公告)号：US20230112017A1

    公开(公告)日：2023-04-13

    申请号：US17960812

    申请日：2022-10-05

    Applicant: Boston Scientific Scimed, Inc.

    Inventor： Erik Stephen Freed ,  Anming He Cai ,  Matthew R. Huston ,  Jennifer Gibbs ,  Jessica D. Morlock ,  Heather Drury ,  Wenguang Li

    IPC: A61B8/12 ,  A61B5/02

    Abstract: Systems and methods for automatic lesion assessment and/or processing imaging data are disclosed. An example intravascular imaging system may include a catheter including an imaging device. A processor may be coupled to the catheter. The processor may be configured to process imaging data received from the imaging device. The processor may be configured to generate a longitudinal section view of a blood vessel from the imaging data received from the imaging device. The processor may be configured to identify a minimum lumen area along the longitudinal section view of the blood vessel, a distal reference point, and a proximal reference. A display unit may be coupled to the processor. The display unit may be configured to show a display including the longitudinal section view of the blood vessel.

    Methods for assessing fractional flow reserve
    27.
    发明授权
    Methods for assessing fractional flow reserve 有权

    公开(公告)号：US11564581B2

    公开(公告)日：2023-01-31

    申请号：US16047763

    申请日：2018-07-27

    Applicant: BOSTON SCIENTIFIC SCIMED, INC.

    Inventor： Wenguang Li

    IPC: A61B5/026 ,  A61B5/00 ,  A61B5/0215 ,  A61B5/02

    Abstract: Systems for determining fractional flow reserve are disclosed. An example system may include a pressure sensing guidewire for measuring a first pressure, a second pressure sensing medical device for measuring a second pressure, and a processor coupled to the pressure sensing guidewire and coupled to the second pressure sensing medical device. The processor may be designed to generate a plot of the magnitude of the second pressure over time, identify one or more time intervals of the plot that have a slope less than zero, determine a mean of the second pressure, and calculate the ratio of the first pressure to the second pressure when (a) the second pressure is less than or equal to the mean of the second pressure and (b) during the one or more time intervals when the slope of the plot is less than zero.

    SYSTEMS AND METHODS FOR SELECTION AND DISPLAYING OF IMAGES USING AN INTRAVASCULAR ULTRASOUND IMAGING SYSTEM
    28.
    发明申请
    SYSTEMS AND METHODS FOR SELECTION AND DISPLAYING OF IMAGES USING AN INTRAVASCULAR ULTRASOUND IMAGING SYSTEM 审中-公开
    使用静脉超声成像系统选择和显示图像的系统和方法

    公开(公告)号：US20150073279A1

    公开(公告)日：2015-03-12

    申请号：US14483998

    申请日：2014-09-11

    Applicant: Boston Scientific SciMed, Inc.

    Inventor： Anming He Cai ,  Wenguang Li ,  Lewis Jones Thomas, III

    IPC: A61B8/08 ,  A61B8/00

    CPC classification number: A61B8/5207 ,  A61B8/085 ,  A61B8/0891 ,  A61B8/12 ,  A61B8/461 ,  A61B8/463 ,  A61B8/466 ,  A61B8/5223 ,  A61B8/5238

    Abstract: A method for real-time displaying of cross-sectional images during an intravascular ultrasound (IVUS) imaging procedure includes, during an intravascular ultrasound imaging procedure, receiving electrical signals from at least one transducer in a catheter as the at least one transducer rotates and moves longitudinally along a lumen of a patient blood vessel; during the intravascular ultrasound imaging procedure, processing the received electrical signals to form a series of cross-sectional images that are longitudinally-offset from one another along a length of the lumen; during the intravascular ultrasound imaging procedure, concurrently displaying i) a most recent image and ii) a previous image that is either a) selected by the operator or b) automatically selected as having a maximum or minimum of a selected image characteristic; and, during the intravascular ultrasound imaging procedure, updating the display of the most recent image as a new image from the series of cross-sectional images is processed.

    Abstract translation: 在血管内超声（IVUS）成像过程中实时显示横截面图像的方法包括在血管内超声成像过程期间，当至少一个换能器旋转和移动时，在导管中从至少一个换能器接收电信号 纵向沿着病人血管的内腔; 在血管内超声成像过程中，处理所接收的电信号以形成沿着所述内腔的长度彼此纵向偏移的一系列横截面图像; 在血管内超声成像过程中，同时显示i）最新图像，以及ii）由操作者选择的先前图像，或b）被自动选择为具有选定图像特征的最大值或最小值; 并且在血管内超声成像过程中，处理来自该系列横截面图像的最新图像的显示作为新图像。

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