SYSTEMS AND METHODS FOR VASCULAR IMAGE CO-REGISTRATION

    公开(公告)号:US20230309835A1

    公开(公告)日:2023-10-05

    申请号:US18128930

    申请日:2023-03-30

    CPC classification number: A61B5/0066 A61B5/02007 A61B8/0891

    Abstract: This disclosure provides methods for vascular imaging co-registration and using the co-registered imaging data in guiding live fluoroscopy. Extravascular imaging data includes an extravascular contrast image showing the portion of the blood vessel with contrast showing a visualized anatomical landmark while intravascular imaging data is obtained during a 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 VASCULAR IMAGE CO-REGISTRATION

    公开(公告)号:US20230210381A1

    公开(公告)日:2023-07-06

    申请号:US18091772

    申请日:2022-12-30

    CPC classification number: A61B5/02028 A61B8/0891 G06T2207/30101 G06N3/08

    Abstract: A neural network is trained for estimating patient hemodynamic data using a plurality of extravascular imaging data sets and a plurality of intravascular imaging data sets that are each co-registered to a corresponding extravascular imaging data set. A plurality of hemodynamic data sets are provided, each hemodynamic data set co-registered with the corresponding extravascular imaging data set. The neural network learns what hemodynamic data to expect for a given intravascular imaging data set. An intravascular imaging event is subsequently performed in which an intravascular imaging element is translated within a blood vessel of the patient to produce one or more intravascular images. The neural network uses its training to predict hemodynamic values corresponding to the one or more intravascular images from the intravascular imaging event, and the one or more intravascular images are outputted in combination with the predicted hemodynamic values.

    Imaging devices with an array of transducers and methods of manufacture and use
    14.
    发明授权
    Imaging devices with an array of transducers and methods of manufacture and use 有权
    具有传感器阵列和制造和使用方法的成像设备

    公开(公告)号:US09427210B2

    公开(公告)日:2016-08-30

    申请号:US14192205

    申请日:2014-02-27

    Abstract: A medical imaging assembly includes an elongated catheter having a connector at the proximal end; an array of transducers on the distal end of the catheter; conductors electrically coupled to the array of transducers and in electrical communication with the connector of the catheter; and a control unit coupleable to the catheter to send and receive electrical signals between the control unit and the array of transducers through the connector of the catheter. The control unit has a processor to execute instructions including 1) selecting a first subset of M transmitting transducers and a second subset of N receiving transducers from the array of transducers, where N>M; and 2) for each of at least N transmit/receive cycles, a) directing the first subset of M transmitting transducers to transmit an acoustic signal; and b) directing the second subset of N receiving transducers to receive corresponding echo signals.

    Abstract translation: 医疗成像组件包括在近端具有连接器的细长导管; 在导管的远端上的一组换能器; 导体,电耦合到换能器阵列并与导管的连接器电连通; 以及控制单元,其可耦合到导管,以通过导管的连接器在控制单元和换能器阵列之间发送和接收电信号。 所述控制单元具有执行指令的处理器,所述指令包括1)从所述传感器阵列中选择M个发射换能器的第一子集和N个接收换能器的第二子集,其中N> M; 和2)对于至少N个发射/接收周期中的每一个,a)引导M个发射换能器的第一子集发射声信号; 以及b)指示N个接收换能器的第二子集接收相应的回波信号。

    Methods for assessing a vessel with sequential physiological measurements

    公开(公告)号:US11311196B2

    公开(公告)日:2022-04-26

    申请号:US16283235

    申请日:2019-02-22

    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 through the vessel from a first position to a second position and the second instrument remains in a fixed longitudinal position within the vessel. A series of pressure ratio values are calculated, and a pressure ratio curve is generated. One or more stepped change in the pressure ratio curve are then identified and/or located using an Automatic Step Detection (ASD) process and/or algorithm. The ASD includes identifying a general position of a starting point of the stepped change by identifying a change in the pressure ratio values within a first window along the pressure ratio curve that is at or above a first threshold change value, and identifying an optimized position of the starting point by identifying a change in the pressure ratio values within a second window along the pressure ratio curve that is at or above a second threshold change value, wherein the second window is smaller than the first window, and the second threshold change value is smaller than the first threshold change value.

    ALIGNMENT FOR MULTIPLE SERIES OF INTRAVASCULAR IMAGES

    公开(公告)号:US20240382180A1

    公开(公告)日:2024-11-21

    申请号:US18667989

    申请日:2024-05-17

    Abstract: The present disclosure provides to process intravascular ultrasound (IVUS) images from different runs through a vessel to generate a mapping between frames of each IVUS run and to generate a graphical user interface (GUI) to graphically present the IVUS runs in relationship to each other. In some examples, a vessel fiducial is identified in a frame of each IVUS run and one or both runs are offset in time, distance, and/or angle to align the frames with the identified vessel fiducial. Further, the disclosure provides to angularly align intravascular images to a viewing perspective of an external image of the vessel.

Patent Agency Ranking