-
公开(公告)号：US20220280259A1
公开(公告)日：2022-09-08
申请号：US17685034
申请日：2022-03-02
Applicant: LightLab Imaging, Inc.
Inventor： Christopher E. Griffin , Joel M. Friedman , Ashley Netravali , Lingfa Yang
Abstract: Aspects of the disclosure relate to the identification of when a blood vessel has been sufficiently cleared of blood so as to capture intravascular images of the vessel wall. The disclosed systems and methods allow for the identification of an initial and a final blood clearing based on the identification of edges within scanlines of a plurality of image frames. The edges of a plurality of scanlines may be analyzed to determine an average edge offset for each image frame, and the average edge offsets for a plurality of image frames may be averaged over various time-windows, so as to determine when the initial and final blood clearing events have occurred. Once a final blood clearing event has been identified, the disclosed system may automatically initiate a catheter pullback procedure, so as to capture intravascular images over a length of the vessel that has been sufficiently cleared of blood.
-
公开(公告)号：US20220114388A1
公开(公告)日：2022-04-14
申请号：US17561018
申请日：2021-12-23
Applicant: LightLab Imaging, Inc.
Inventor： Shimin Li , Ajay Gopinath , Kyle Savidge
Abstract: In part, the disclosure relates to methods, and systems suitable for evaluating image data from a patient on a real time or substantially real time basis using machine learning (ML) methods and systems. Systems and methods for improving diagnostic tools for end users such as cardiologists and imaging specialists using machine learning techniques applied to specific problems associated with intravascular images that have polar representations. Further, given the use of rotating probes to obtain image data for OCT, IVUS, and other imaging data, dealing with the two coordinate systems associated therewith creates challenges. The present disclosure addresses these and numerous other challenges relating to solving the problem of quickly imaging and diagnosis a patient such that stenting and other procedures may be applied during a single session in the cath lab.
-
公开(公告)号：US20210251592A1
公开(公告)日：2021-08-19
申请号：US17225456
申请日：2021-04-08
Applicant: LightLab Imaging, Inc.
Inventor： Lorina Dascal , Itai Winkler
Abstract: The disclosure relates generally to the field of vascular system and peripheral vascular system data collection, imaging, image processing and feature detection relating thereto. In part, the disclosure more specifically relates to methods for detecting position and size of contrast cloud in an x-ray image including with respect to a sequence of x-ray images during intravascular imaging. Methods of detecting and extracting metallic wires from x-ray images are also described herein such as guidewires used in coronary procedures. Further, methods for of registering vascular trees for one or more images, such as in sequences of x-ray images, are disclosed. In part, the disclosure relates to processing, tracking and registering angiography images and elements in such images. The registration can be performed relative to images from an intravascular imaging modality such as, for example, optical coherence tomography (OCT) or intravascular ultrasound (IVUS).
-
公开(公告)号：US20210217175A1
公开(公告)日：2021-07-15
申请号：US17155778
申请日：2021-01-22
Applicant: LightLab Imaging, Inc.
Inventor： Sonal Ambwani , Christopher E. Griffin , James G. Peterson , Satish Kaveti , Joel M. Friedman
Abstract: The disclosure relates, in part, to computer-based visualization of stent position within a blood vessel. A stent can be visualized using intravascular data and subsequently displayed as stent struts or portions of a stent as a part of a one or more graphic user interface(s) (GUI). In one embodiment, the method includes steps to distinguish stented region(s) from background noise using an amalgamation of angular stent strut information for a given neighborhood of frames. The GUI can include views of a blood vessel generated using distance measurements and demarcating the actual stented region(s), which provides visualization of the stented region. The disclosure also relates to display of intravascular diagnostic information such as indicators. An indicator can be generated and displayed with images generated using an intravascular data collection system. The indicators can include one or more viewable graphical elements suitable for indicating diagnostic information such as stent information.
-
公开(公告)号：US20200330070A1
公开(公告)日：2020-10-22
申请号：US16870149
申请日：2020-05-08
Applicant: LightLab Imaging, Inc.
Inventor： James G. Peterson , Christopher E. Griffin , Sonal Ambwani
Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.
-
Patent Agency Ranking
公开(公告)号：US10342502B2
公开(公告)日：2019-07-09
申请号：US15355970
申请日：2016-11-18
Applicant: LightLab Imaging, Inc.
Inventor： Lorina Dascal , Itai Winkler
Abstract: The disclosure relates generally to the field of vascular system and peripheral vascular system data collection, imaging, image processing and feature detection relating thereto. In part, the disclosure more specifically relates to methods for detecting position and size of contrast cloud in an x-ray image including with respect to a sequence of x-ray images during intravascular imaging. Methods of detecting and extracting metallic wires from x-ray images are also described herein such as guidewires used in coronary procedures. Further, methods for of registering vascular trees for one or more images, such as in sequences of x-ray images, are disclosed. In part, the disclosure relates to processing, tracking and registering angiography images and elements in such images. The registration can be performed relative to images from an intravascular imaging modality such as, for example, optical coherence tomography (OCT) or intravascular ultrasound (IVUS).
-
公开(公告)号：US20190099237A1
公开(公告)日：2019-04-04
申请号：US16149886
申请日：2018-10-02
Applicant: LightLab Imaging, Inc.
Inventor： James Booker , David Ellman , Douglas Tatosian , Charles Milne
Abstract: In one embodiment, the disclosure relates to a probe that a cylindrical marker band defining an inner surface, an outer surface, a first end and a second end and having a band length, the inner surface defining a marker band bore, the cylindrical marker band includes a radiopaque material; a molded unitary lens defining an elongate optical fiber receiving section having a fiber section length and a beam directing surface, wherein the fiber section length and the band length overlap along an overlap distance; and an optical fiber, wherein a first section of the optical fiber is disposed in the optical fiber receiving section, wherein a portion of the first section of the optical fiber is disposed within the marker band bore.
-
公开(公告)号：US10172582B2
公开(公告)日：2019-01-08
申请号：US15356013
申请日：2016-11-18
Applicant: LightLab Imaging, Inc.
Inventor： Lorina Dascal , Itai Winkler
Abstract: The disclosure relates generally to the field of vascular system and peripheral vascular system data collection, imaging, image processing and feature detection relating thereto. In part, the disclosure more specifically relates to methods for detecting position and size of contrast cloud in an x-ray image including with respect to a sequence of x-ray images during intravascular imaging. Methods of detecting and extracting metallic wires from x-ray images are also described herein such as guidewires used in coronary procedures. Further, methods for of registering vascular trees for one or more images, such as in sequences of x-ray images, are disclosed. In part, the disclosure relates to processing, tracking and registering angiography images and elements in such images. The registration can be performed relative to images from an intravascular imaging modality such as, for example, optical coherence tomography (OCT) or intravascular ultrasound (IVUS).
-
公开(公告)号：US10140712B2
公开(公告)日：2018-11-27
申请号：US14975462
申请日：2015-12-18
Applicant: LightLab Imaging, Inc.
Inventor： Sonal Ambwani
Abstract: In part, the disclosure relates to methods of stent strut detection relative to a side branch region using intravascular data. In one embodiment, detecting stent struts relative to jailed side branches is performed using a scan line-based peak analysis. In one embodiment, false positive determinations relating to stent struts are analyzed using a model strut.
-
公开(公告)号：US10089755B2
公开(公告)日：2018-10-02
申请号：US15218871
申请日：2016-07-25
Applicant: LightLab Imaging, Inc.
Inventor： Christopher E. Griffin , Sonal Ambwani , Satish Kaveti
IPC: G06T11/00 , A61B5/00 , A61B8/08 , A61B8/12 , A61M25/09 , A61B5/02 , A61B5/06 , G06T7/70 , G06T7/00
Abstract: In part, the disclosure relates to methods of guidewire detection in intravascular data sets such as scan lines, frames, images and combinations thereof. Methods of generating one or more indicia of a guidewire in a representation of blood vessel are also features of the disclosure. A carpet view is generated in one embodiment and regions of relatively higher contrast are detected as candidate guidewire regions. In one embodiment, the disclosure relates to selective removal of guidewire segments from a set of intravascular data and the display of a representation of a blood vessel via a user interface. Representations of a guidewire can be toggled on and off in one embodiment.
-
-
-
-
-
-
-
-
-
Search Results
183
records
(took 0.038 seconds)
