Patents by Inventor Sandeep Dalal

Sandeep Dalal has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210007805
    Abstract: An ablation planning system includes a user interface (104) configured to permit selection of inputs for planning an ablation procedure. The user interface is further configured to incorporate selection of ablation probes and one or more combinations of ablation powers, durations or parameters applicable to selected probes in the inputs to size the ablation volumes. The user interface includes a display for rendering internal images of a patient, the display permitting visualizations of the ablation volumes for different entry points on the internal images. An optimization engine (106) is coupled to the user interface to receive the inputs and is configured to output an optimized therapy plan which includes spatial ablation locations and temporal information for ablation so that collateral damage is reduced, coverage area is maximized and critical structures are avoided in a planned target volume.
    Type: Application
    Filed: July 28, 2020
    Publication date: January 14, 2021
    Inventors: XIN LIU, SANDEEP DALAL, JOCHEN KRUECKER
  • Patent number: 10695129
    Abstract: A system for ablation planning and treatment includes a delineation module (124) configured to distinguish tissue types in an image, the tissue types including at least a core tissue and a margin zone encapsulating the core tissue. A treatment planning module (140) is configured to apply weightings in a cost function to prioritize ablation coverage of the tissue types including the core tissue and the margin zone to determine ablation characteristics that achieve an ablation composite in accordance with user preferences. A graphical user interface (122) is rendered on a display to indicate the core tissue, the margin zone, the ablation composite and permit module user selection of one or more treatment methods.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: June 30, 2020
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Sandeep Dalal, Jochen Kruecker
  • Patent number: 10561462
    Abstract: A system and method for ablation include ablating (508) a target volume using an ablation probe and collecting (510) temperature information around the target volume. A shape of an ablation volume is determined (512) based upon the temperature information. The shape is displayed (520) on a display relative to an image of the target volume.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 18, 2020
    Assignee: Koninklijke Philips N.V.
    Inventors: Sandeep Dalal, Jochen Kruecker
  • Patent number: 10423757
    Abstract: A system and method for ablation planning includes defining (502) shapes and sizes for one or more ablation volumes based on probability of treatment, and determining (510) a target volume to be treated. A procedure plan is provided (516) by determining a number and location of planned ablations within the target volume using the one or more ablation volumes. A joint probability distribution (520) is determined for at least two planned ablations in the target volume. A final configuration is visualized (530) to determine if plan objectives are met based on a probability of treatment for the target volume.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: September 24, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Jochen Kruecker, Sandeep Dalal, Bradford Johns Wood, Sheng Xu
  • Publication number: 20180042679
    Abstract: A system for ablation planning and treatment includes a delineation module (124) configured to distinguish tissue types in an image, the tissue types including at least a core tissue and a margin zone encapsulating the core tissue. A treatment planning module (140) is configured to apply weightings in a cost function to prioritize ablation coverage of the tissue types including the core tissue and the margin zone to determine ablation characteristics that achieve an ablation composite in accordance with user preferences. A graphical user interface (122) is rendered on a display to indicate the core tissue, the margin zone, the ablation composite and permit module user selection of one or more treatment methods.
    Type: Application
    Filed: March 24, 2016
    Publication date: February 15, 2018
    Inventors: Sandeep DALAL, Jochen KRUECKER
  • Publication number: 20150306426
    Abstract: The invention relates to an assisting apparatus for assisting in performing brachytherapy. The position of an introduction element (17) like a catheter is tracked particularly by using electromagnetic tracking, while a group of seeds is introduced into a living object (2). This provides a rough knowledge about the position of the seeds within the object. An ultrasound image showing the group is generated depending on the tracked position of the introduction element and, thus, depending on the rough knowledge about the position of the seeds, in order to optimize the ultrasound visualization with respect to showing the introduced seeds. Based on this optimized ultrasound visualization the position of a seed of the group is determined, thereby allowing for an improved determination of seed positions and correspondingly for an improved brachytherapy performed based on the determined positions.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 29, 2015
    Inventors: Ehsan Dehghan Marvast, Amir Mohammad Tahmasebi Maraghoosh, Shyam Bharat, Sandeep Dalal, Cynthia Ming-fu Kung, Jochen Kruecker
  • Patent number: 9144461
    Abstract: A therapy planning and image guidance and navigation for an interventional procedure are combined in one system. The system includes: a radio frequency ablation therapy planning component (1) capable of creating an initial treatment plan, adjusting the treatment plan to take into account data received during a procedure and transferring a treatment plan to a navigation component, a navigation system component (2) to guide an ablation probe (6) and a feedback sub-system (3) for determining actual ablation probe positions/orientations and actual ablation size/shape via imaging (4) and/or tracking (5) systems, and enabling exchange of information between the planning component and the navigation component.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: September 29, 2015
    Assignees: Koninklijke Philips N.V., THE UNITED STATES OF AMERICA, as represented by the Secretary, Department of Health and Human Services
    Inventors: Jochen Kruecker, Sandeep Dalal, Sheng Xu, Bradford J. Wood
  • Publication number: 20140058387
    Abstract: A system and method for ablation planning includes defining (502) shapes and sizes for one or more ablation volumes based on probability of treatment, and determining (510) a target volume to be treated. A procedure plan is provided (516) by determining a number and location of planned ablations within the target volume using the one or more ablation volumes. A joint probability distribution (520) is determined for at least two planned ablations in the target volume. A final configuration is visualized (530) to determine if plan objectives are met based on a probability of treatment for the target volume.
    Type: Application
    Filed: November 7, 2011
    Publication date: February 27, 2014
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jochen Kruecker, Sandeep Dalal, Bradford Johns Wood, Sheng Xu
  • Publication number: 20130184700
    Abstract: A system and method for ablation include ablating (508) a target volume using an ablation probe and collecting (510) temperature information around the target volume. A shape of an ablation volume is determined (512) based upon the temperature information. The shape is displayed (520) on a display relative to an image of the target volume.
    Type: Application
    Filed: September 22, 2011
    Publication date: July 18, 2013
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Sandeep Dalal, Jochen Kruecker
  • Patent number: 8267927
    Abstract: In planning an ablation procedure, a planned target volume (PTV) is imported, which is typically selected by a doctor but may be computer-identified. An ablation solution comprising a plurality of ablation volumes is generated or selected using a lookup table. Ablations sharing a common axis along a line of insertion are grouped into blocks. Alternatively, the PTV is enveloped in a sphere, and a pre-computed ablation solution (e.g., a 6- or 14-sphere solution) is identified to cover the PTV sphere. Optionally, a mathematical algorithm is executed to increase an axis through the ablation spheres to generate ellipsoidal ablation volumes that envelop the PTV.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: September 18, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Sandeep Dalal, Karen Irene Trovato, Jurgen Jan Rusch, Jochen Kruecker
  • Publication number: 20120189998
    Abstract: A training system and method includes a subject phantom (102) capable of being visualized on a display (120). A spatial tracking system (104) is configured to track an interventional instrument (108) in subject phantom space. A simulation system (110) is configured to generate a simulated abnormality in the phantom space and to simulate interactions with the simulated abnormality to provide feedback and evaluation information to a user for training the user in an associated procedure related to the abnormality.
    Type: Application
    Filed: May 14, 2010
    Publication date: July 26, 2012
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jochen Kruecker, Sheng Xu, Sandeep Dalal, Bradford Johns Wood
  • Publication number: 20110251607
    Abstract: A therapy planning and image guidance and navigation for an interventional procedure are combined in one system. The system includes: a radio frequency ablation therapy planning component (1) capable of creating an initial treatment plan, adjusting the treatment plan to take into account data received during a procedure and transferring a treatment plan to a navigation component, a navigation system component (2) to guide an ablation probe (6) and a feedback sub-system (3) for determining actual ablation probe positions/orientations and actual ablation size/shape via imaging (4) and/or tracking (5) systems, and enabling exchange of information between the planning component and the navigation component.
    Type: Application
    Filed: November 5, 2009
    Publication date: October 13, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Jochen Kruecker, Sandeep Dalal, Sheng Xu, Bradford J. Wood
  • Publication number: 20110208055
    Abstract: An ultrasound ablation system can include an imaging device (50) for capturing first imaging of a region of interest, a processor (75) for receiving a selection of a planned target volume using the first imaging, and an ultrasound transducer (170) for performing first ultrasound ablation on the planned target volume. The processor can select ultrasound ablation shapes from a library of ultrasound ablation shapes. The ultrasound transducer can apply energy to the planned target volume based at least in part on the selected ultrasound ablation shapes. The imaging device can capture second imaging of the region of interest after application of the first ultrasound ablation. The processor can select other ultrasound ablation shapes from the library of ultrasound ablation shapes based at least in part on the second imaging.
    Type: Application
    Filed: October 12, 2009
    Publication date: August 25, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Sandeep Dalal, Balasundara Raju, Ajay Anand
  • Publication number: 20110015628
    Abstract: In planning an ablation procedure, a planned target volume (PTV) is imported, which is typically selected by a doctor but may be computer-identified. An ablation solution comprising a plurality of ablation volumes is generated or selected using a lookup table. Ablations sharing a common axis along a line of insertion are grouped into blocks. Alternatively, the PTV is enveloped in a sphere, and a pre-computed ablation solution (e.g., a 6- or 14-sphere solution) is identified to cover the PTV sphere. Optionally, a mathematical algorithm is executed to increase an axis through the ablation spheres to generate ellipsoidal ablation volumes that envelop the PTV.
    Type: Application
    Filed: February 22, 2010
    Publication date: January 20, 2011
    Inventors: Sandeep DALAL, Karen Irene TROVATO, Jurgen Jan RUSCH, Jochen KRUECKER
  • Publication number: 20100254583
    Abstract: A ventricular epicardium registration method (60) involves three phases. The first phase (P62) is an identification of one or more anatomical features invisible within ultrasound images (41) of a ventricular epicardium of a heart (10). The second phase (P61) is a representation of the anatomical feature(s) visible within X-ray images (31) of the ventricular epicardium of the heart. The third phase (P63) is a registration of the ultrasound images (41) and the X-ray images (31) of the ventricular epicardium of the heart based on the representation of the anatomical feature(s) invisible in the ultrasound images (41) and on the identification of the anatomical feature(s) visible within the X-ray images (31). Examples of the anatomical feature(s) include, but are not limited to, a portion or an entirety of an epicardial surface (11, 12) and a coronary sinus vein (13).
    Type: Application
    Filed: December 12, 2008
    Publication date: October 7, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Raymond Chan, Robert Manzke, Sandeep Dalal, Francois Tournoux
  • Publication number: 20070229533
    Abstract: A system and method for reducing complexity in a color sequential display system that utilizes motion compensation and color conversion. A color sequential display system (10) is provided that comprises: a motion estimation system (14) that operates on a Y component from a set of YUV components to generate a set of motion vectors (36); and a complexity reduction system (22) that receives the set of motion vectors and the set of YUV components and outputs motion compensated red, green, blue (RGB) data (38), wherein the complexity reduction system includes: a color space conversion system (18) that converts from a YUV color space to an RGB color space based on a set of conversion equations (32); and a motion compensated color sequencing system (16) that selects a subset of the YUV components to motion compensate based on the set of conversion equations.
    Type: Application
    Filed: August 10, 2005
    Publication date: October 4, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Sandeep Dalal, Cornelis Conradus Adrianus Van Zon, Lilly Boroczky
  • Publication number: 20070230918
    Abstract: A system and method of processing a digital video signal for display on a display device, includes decoding an encoded digital video signal to produce a decoded digital video signal having a video source format; extracting coding information from the encoded digital video signal; executing a video quality improvement algorithm on the decoded digital video signal having the video source format using the extracted coding information, to produce a processed decoded digital video signal having the video source format; and converting the processed decoded digital video signal from the video source format to a video display format suitable for display on the display device. The system and method enhance the quality and/or reduce video artifacts in a video signal after it is decoded and prior to display on a display device.
    Type: Application
    Filed: March 29, 2005
    Publication date: October 4, 2007
    Inventors: Sandeep Dalal, Yibin Yang, Lilla Boroczky, Cornelis Conradus Adrianus Van Zon
  • Publication number: 20070121724
    Abstract: Example embodiments are directed to a video image display system that includes a motion estimation circuit (112), a front-end motion compensation circuit (110), and a video signal conversion circuit (134, 136). The motion estimation circuit generates motion vectors as a function of an incoming video signal, the front-end motion compensation circuit receives and processes the incoming video signal as a function of the motion vectors for general video display, and the video signal conversion circuit receives the processed video signal from the front-end motion compensation circuit and generates a display signal for a specific video display as a function of both the processed video signal and the motion vectors. In one implementation, a scaler (120) is implemented to scale the video signal for a particular display type, with components of the motion compensation being implemented for use with the scaler.
    Type: Application
    Filed: January 24, 2005
    Publication date: May 31, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Cornelis Van Zon, Sandeep Dalal, John Dean, Lilla Boroczky
  • Publication number: 20060238551
    Abstract: Gamma correcting procedures suitable for single-panel LCD/LCoS projectors are provided. Initially, linearly derived gamma values are used to produce gray scale color images (such as RED, GREEN, and BLUE). The brightness-voltage characteristics of the projector are determined by measurement and calculation. New gamma correction values are calculated and used to produce new gray scale color images, which are measured to determine their brightness-data responses. Errors with respect to a desired (power-law) response are used to calculate improved gamma correction values. The process of using newly calculated gamma correction values to produce gray scale color images, measuring the gray scale color images to find their brightness-data response, and using errors to obtain new gamma correction values repeats until the brightness-data characteristics of the display matches the desired response and until the display's grayscale tracking meets the desired performance levels.
    Type: Application
    Filed: April 8, 2004
    Publication date: October 26, 2006
    Inventor: Sandeep Dalal
  • Publication number: 20060071936
    Abstract: A method of processing an image comprising: measuring a set of pixel dependent attributes for a pixelated video frame, each pixel of the frame having a gray level, each gray level associated with a brightness level; and in response to each and every pixel dependent attribute of the set of pixel dependent attributes meeting a corresponding criteria, decreasing the overall brightness of the video frame in accordance with a global brightness signal and increasing the brightness of the gray level of each pixel of the video frame in accordance with a local brightness control signal, the amount a particular gray level brightness is increased being dependent upon the particular gray level and a function of the measured pixel dependent attributes.
    Type: Application
    Filed: November 12, 2003
    Publication date: April 6, 2006
    Inventors: Evgeniy Leyvi, Sandeep Dalal