Patents by Inventor Shyam Bharat

Shyam Bharat 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: 20190008476
    Abstract: A system includes an acoustic probe and an acoustic imaging machine connected to the acoustic probe. The acoustic probe a substrate with first and second principal surfaces, at least one device insertion port comprising an opening passing through the substrate from the first principal surface to the second principal surface, and an array of acoustic transducer elements supported by the substrate and disposed around the at least one device insertion port. The acoustic imaging machine is configured systematically vary the size and/or position of the active acoustic aperture of the ultrasound probe by providing transmit signals to selected acoustic transducer elements to cause the array of acoustic transducer elements to transmit an acoustic probe signal to an area of interest, and recording a feedback signal of the transmit signals from an acoustic receiver (610) provided at a distal end of an interventional device passed through the device insertion port into the area of interest.
    Type: Application
    Filed: December 21, 2016
    Publication date: January 10, 2019
    Inventors: RAMON QUIDO ERKAMP, MAN NGUYEN, JEAN-LUC ROBERT, SHENG-WEN HUANG, SHYAM BHARAT, JOCHEN KRUECKER
  • Patent number: 10143852
    Abstract: The invention relates to a determination apparatus for determining the pose and shape of an introduction element like a catheter within a living being, wherein the introduction element is adapted to be used by a brachytherapy apparatus for introducing a radiation source close to a target object to be treated. A position determination element like guidewire with an electromagnetic tracking element is introduced into the introduction element such that it is arranged at different locations within the introduction element, wherein the positions of the position determination element within the introduction element are determined. The determined positions are then acquired depending on the determined positions for determining the pose and shape of the introduction element within the living being. This can lead to a determination procedure with reduced user interaction, thereby simplifying the determination procedure for the user.
    Type: Grant
    Filed: July 15, 2013
    Date of Patent: December 4, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Shyam Bharat, Ehsan Dehghan Marvast, Jochen Kruecker, Cynthia Ming-fu Kung
  • Publication number: 20180333217
    Abstract: A system for dynamic localization of medical instruments includes an ultrasound imaging system (110) configured to image a volume where one or more medical instruments are deployed. A registration module (136) registers two images of the one or more medical instruments to compute a transform between the two images, the two images being separated in time. A planning module (142) is configured to have positions of the volume and the one or more medical instruments updated based on the transform and, in turn, update a treatment plan in accordance with the updated positions such that changes in the volume and positions of the one or more medical instruments are accounted for in the updated plan.
    Type: Application
    Filed: December 8, 2015
    Publication date: November 22, 2018
    Inventors: EHSAN DEHGHAN MARVAST, SHYAM BHARAT, JOCHEN KRUECKER
  • Publication number: 20180325602
    Abstract: A transperinealprostate intervention device comprises a prostate intervention instrument (10), a transrectal ultrasound (TRUS) probe (12), and a mechanical or optical coordinate measurement machine (CMM) (20) attached to the TRUS probe and configured to track the prostate intervention instrument. The CMM may include an articulated arm with a plurality of encoding joints (24), an anchor end (30) attached to the TRUS probe, and a movable end (32) attached to the prostate intervention instrument. The prostate intervention instrument may, for example, be a biopsy needle, a brachytherapy seed delivery instrument, a tissue ablation instrument, or a hollow cannula. An electronic processor (40) computes a predicted trajectory (54) of the prostate intervention instrument in a frame of reference of the TRUS probe using the CMM attached to the TRUS probe. A representation (56) of the predicted trajectory is superimposed on a prostate ultrasound image (50) generated from ultrasound data collected by the TRUS probe.
    Type: Application
    Filed: November 29, 2016
    Publication date: November 15, 2018
    Inventors: Shyam Bharat, Aleksandra Popovic, Ameet Kumar Jain
  • Patent number: 10113889
    Abstract: A calibration system includes a channel block (102) having a plurality of channels (104) formed therein. The channels are configured to correspond to locations where treatment devices are inserted for treatment of a patient. The channels are dimensioned to restrict motion of the treatment devices. A tracking system (128) is configured to monitor a position of a treatment device (108) inserted in one or more of the channels. The tracking system is configured to generate tracking data for the at least one treatment device for comparison with an expected position for the treatment device.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: October 30, 2018
    Assignee: Koninklijke Philips N.V.
    Inventors: Jochen Kruecker, Shyam Bharat, Cynthia Ming-Fu Kung
  • Publication number: 20180304100
    Abstract: A method includes generating a hyperthermia heat plan for tissue of interest, generating a hyperthermia adapted radiation therapy plan for the tissue of interest, controlling a heat source (126) to deliver heat to the tissue of interest according to the hyperthermia heat plan, and controlling a radiation source of a radiation therapy system (100) to deliver radiation to the tissue of interest according to the hyperthermia adapted radiation therapy plan. A system includes a radiation treatment planner (124) configured to generate a hyperthermia adapted radiation therapy plan for the tissue of interest, a radiation therapy system (100) configured to deliver radiation in accordance with the hyperthermia adapted radiation therapy plan, and a hyperthermia heat delivery system (126) configured to deliver heat in accordance with a hyperthermia plan.
    Type: Application
    Filed: October 13, 2016
    Publication date: October 25, 2018
    Inventors: Shyam BHARAT, Ajay ANAND, Robert Michael STARUCH, Shriram SETHURAMAN, Vijay PARTHASARATHY, Ehsan DEHGHAN MARVAST
  • Publication number: 20180271577
    Abstract: A system for performing ablation includes an ablation device (102) configured to ablate tissue in accordance with control parameters and configured to make measurements during the ablation process. An imaging system (104) is configured to measure an elastographic related parameter to monitor ablation progress. A parameter estimation and monitoring module (115) is configured to receive the measurements from the ablation device and/or the elastographic related parameter to provide feedback to adaptively adjust imaging parameters of the imaging device at different times during an ablation process.
    Type: Application
    Filed: February 16, 2016
    Publication date: September 27, 2018
    Inventors: Shyam BHARAT, AJAY ANAND, SHRIRAM SETHURAMAN, Sheng-Wein HUANG, WILLIAM TAO SHI
  • Patent number: 10080910
    Abstract: A radiation therapy system (1) includes an ultrasound (US) imaging unit (2), a registration unit (30), an US motion unit (44), and a real-time dose computation engine (46). The ultrasound (US) imaging unit (2) generates a baseline and real-time US images (3) of a subject body (4) region including a target and one or more Organs At Risk (OARs). The registration unit (30) deformably registers a planning image (32) and the baseline US image (36), and maps (66) radiation absorptive properties of tissue in the planning image (32) to the baseline US image (36). The US motion unit (44) measures motion of the target volume and OARs during radiation therapy treatment based on the real-time US images. The real-time dose computation engine (46) computes a real-time radiation dose delivered to the tissues based on the tissue radiation absorptive properties mapped from the baseline or planning images to the real-time 3D US images (3).
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 25, 2018
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Shyam Bharat, Vijay Parthasarathy, Ameet Kumar Jain
  • Publication number: 20180229053
    Abstract: A brachytherapy seed localization system for localizing radioactive seeds within a diseased tissue, the brachytherapy seed localization system employs a tool tracking machine (50) for generating a tracked seed distribution map (51) of delivered locations of the radioactive seeds within the diseased tissue, and a tissue imaging machine (60) for generating a seed distribution image (61) of projected locations of the radioactive seeds within the diseased tissue including at least one false projected location. The brachytherapy seed localization system further employs a brachytherapy seed localizer (70) for generating a composite seed distribution map (71) of estimated locations of the radioactive seeds within the diseased tissue derived from a combination of the tracked seed distribution map (51) and the seed distribution image (61) excluding any false projected location(s) within the seed distribution image (61).
    Type: Application
    Filed: September 25, 2015
    Publication date: August 16, 2018
    Inventors: JOCHEN KRUECKER, Ehsan DEHGHAN MARVAST, Shyam BHARAT, Cynthia Ming-Fu KUNG
  • Publication number: 20180132821
    Abstract: An ultrasound calibration system employs a calibration phantom (20), an ultrasound probe (10) and a calibration workstation (40a). The calibration phantom (20) encloses a frame assembly (21) within a calibration coordinate system established by one or more phantom trackers. In operation, the ultrasound probe (10) acoustically scans an image of the frame assembly (21) within an image coordinate system relative to a scan coordinate system established by one or more probe trackers. The calibration workstation (40a) localizes the ultrasound probe (10) and the frame assembly image (11) within the calibration coordinate system and determines a calibration transformation matrix between the image coordinate system and the scan coordinate system from the localizations.
    Type: Application
    Filed: December 16, 2014
    Publication date: May 17, 2018
    Inventors: EHSAN DEHGHAN MARVAST, SHYAM BHARAT, AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, GREGORY COLE, JOCHEN KRUECKER
  • Publication number: 20180125446
    Abstract: An ultrasound system for performing cancer grade mapping includes an ultrasound imaging device (10) that acquires ultrasound imaging data. An electronic data processing device (30) is programmed to generate an ultrasound image (34) from the ultrasound imaging data, and to generate a cancer grade map (42) by (i) extracting sets of local features from the ultrasound imaging data that represent map pixels of the cancer grade map and (ii) classifying the sets of local features using a cancer grading classifier (46) to generate cancer grades for the map pixels of the cancer grade map. A display component (20) displays the cancer grade map, for example overlaid on the ultrasound image as a color-coded cancer grade map overlay. The cancer grading classifier is learned from a training data set (64) comprising sets of local features extracted from ultrasound imaging data at biopsy locations and labeled with histopathology cancer grades.
    Type: Application
    Filed: May 20, 2016
    Publication date: May 10, 2018
    Inventors: Lilla Boroczky, Amir Mohammad TAHMASEBI MARAGHOOSH, Shyam Bharat
  • Publication number: 20180070923
    Abstract: A segmentation selection system includes a transducer (14) configured to transmit and receive imaging energy for imaging a subject. A signal processor (26) is configured to process imaging data received to generate processed image data. A segmentation module (50) is configured to generate a plurality of segmentations of the subject based on features or combinations of features of the imaging data and/or the processed image data. A selection mechanism (52) is configured to select one of the plurality of segmentations that best meets a criterion for performing a task.
    Type: Application
    Filed: March 15, 2016
    Publication date: March 15, 2018
    Inventors: Shyam BHARAT, Amir Mohammad TAHMASEBI MARAGHOOSH, Jean-Luc ROBERT, Dirk BINNEKAMP
  • Patent number: 9895556
    Abstract: A system and method include a shape sensing enabled device (116) having at least one optical fiber (118). A source positioning module (124) is configured to receive optical signals from the at least one optical fiber within a structure and interpret the optical signals to provide motion information of treatment sources within the device. A dose determination module (130) is configured to provide one or more temporal bins representing a total treatment time. For each temporal bin, the dose determination module is configured to determine a dose received by a target area to be treated using the motion information of the treatment sources. The dose determination module is further configured to combine the dose received by the target area for each of the one or more temporal bins to determine a total dose received by the target area.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: February 20, 2018
    Assignee: Koninklijke Philips N.V.
    Inventor: Shyam Bharat
  • Patent number: 9867998
    Abstract: The invention relates to a calibration apparatus for calibrating a system for introducing an influencing element like a radiation source into an object, particularly for calibrating a brachytherapy system. First and second images show a longish introduction device (12) like a catheter and a tracking device (16) like an electromagnetically trackable guidewire inserted into the introduction device as far as possible, and the introduction device and a calibration element (46) having the same dimensions as the influencing element and being inserted into the introduction device as far as possible. A spatial relation between the tracking device and the calibration element is determined based on the images for calibrating the system. Knowing this spatial relation allows accurately determining an influencing plan like a brachytherapy treatment plan and accurately positioning the influencing element in accordance with the influencing plan, which in turn allows for a more accurate influencing of the object.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: January 16, 2018
    Assignees: Koninkljke Philips N.V., Sunnybrook Research Institute
    Inventors: Shyam Bharat, Jochen Kruecker, Ananth Ravi, Ehsan Dehghan Marvast
  • Publication number: 20170368368
    Abstract: An intervention system employing an interventional device (10), and a sensor wire (20) manually translatable within the lumen (11). The intervention system further employs a reconstruction controller (44) for reconstructing a shape of the interventional tool (10) responsive to a sensing of a manual translation of the sensor wire (20) within the lumen (11) (e.g., a EM sensor being attached to/embedded within a guide wire), and for determining a reconstruction accuracy of a translation velocity of the sensor wire (20) within the lumen (11) to thereby facilitate an accurate reconstruction of the shape of the interventional tool (10). The reconstruction accuracy may be determined by the reconstruction controller (44) as an acceptable translation velocity being less than an acceptable threshold, an unacceptable translation velocity being greater than an unacceptable threshold, and/or a borderline translation velocity being greater than the acceptable threshold and less than the unacceptable threshold.
    Type: Application
    Filed: November 17, 2015
    Publication date: December 28, 2017
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: SHYAM BHARAT, EHSAN DEHHGHAN MARVAST, CYNTHIA MING-FU KUNG, JOCHEN KRUECKER, ANANTH RAVI, NIRANJAN VENUGOPAL
  • Publication number: 20170363669
    Abstract: An electromagnetic field quality assurance system employing an electromagnetic field generator (10) for emitting an electromagnetic field (12), and one or more quality assurance electromagnetic sensors (11, 21, 31, 41, 50) for sensing the emission of the electromagnetic field (12). The system further employs a quality assurance controller (74) for assessing a tracking quality of the electromagnetic field (12) derived from a monitoring of a sensed position of each quality assurance electromagnetic sensor (11, 21, 31, 41, 50) within a field-of-view of the electromagnetic field (12). The electromagnetic field generator (10), an ultrasound probe (20), an ultrasound stepper (30) and/or a patient table (40) may be equipped with the quality assurance electromagnetic sensor(s) (11, 21, 31, 41, 50).
    Type: Application
    Filed: December 9, 2015
    Publication date: December 21, 2017
    Inventors: EHSAN DEHGHAN MARVAST, SHYAM BHARAT, AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, SANDEEP M DALAL, JOCHEN KRUECKER, CYNTHIA MING-FU KUNG, NIRANJAN VENUGOPAL, ANANTH RAVI
  • Publication number: 20170354346
    Abstract: A system for selecting a calibration includes a data structure (138) including non-transitory computer readable storage media having a plurality of calibration entries stored therein and indexed to position and/or orientation criteria for a field generator. The field generator is configured for placement in an environment for sensor tracking. A calibration selection module (140) is configured to determine a position and/or orientation of the field generator and, based on the position and/or orientation, determine, using the data structure, corresponding calibration information stored in the data structure. The calibration information is optimized based upon the position and/or orientation of the field generator.
    Type: Application
    Filed: November 23, 2015
    Publication date: December 14, 2017
    Inventors: SHYAM BHARAT, ANANTH RAVI, EHSAN DEHGHAN MARVAST, CYNTHIA MING-FU KUNG, JOCHEN KRUECKER
  • Publication number: 20170304644
    Abstract: An interventional therapy system (100, 200, 300, 900) may include at least one catheter configured for insertion within an object of interest (OOI); and at least one controller (102, 202, 910) which: obtains a reference image dataset (540) comprising a plurality of image slices which form a three-dimensional image of the OOI, defines restricted areas (RAs) within the reference image dataset, determines location constraints for the at least one catheter in accordance with at least one of planned catheter intersection points, a peripheral boundary of the OOI and the RAs defined in the reference dataset, determines at least one of a position and an orientation of the distal end of the at least one catheter, and/or determines a planned trajectory for the at least one catheter in accordance with the determined at least one position and orientation for the at least one catheter and the location constraints.
    Type: Application
    Filed: October 16, 2015
    Publication date: October 26, 2017
    Applicant: KONINKLIJKE PHILIPS N.V.
    Inventors: JOCHEN KRUECKER, SHYAM BHARAT, EHSAN DEHGHAN MARVAST, CYNTHIA MING-FU KUNG, ANANTH RAVI, FALK UHLEMANN, THOMAS ERIK AMTHOR
  • Publication number: 20170301088
    Abstract: An interventional therapy system (100, 200, 300, 900) may include at least one controller (102, 202, 910) which may obtain a reference image dataset (540) of an object of interest (OOI); segment the reference image dataset to determine peripheral outlines (545) of the OOI in the plurality image slices; acquire a current image of the OOI (548) using an ultrasound probe (114, 224); select a peripheral outline (CBS, 545) of a selected image slice of the plurality of slices of the reference image dataset which is determined to correspond to the current image; and/or modify the selected peripheral outline of the image slice of the plurality of slices of the reference image dataset in accordance with at least one deformation vector (549).
    Type: Application
    Filed: September 30, 2015
    Publication date: October 19, 2017
    Inventors: SHYAM BHARAT, EHSAN DEHGHAN MARVAST, JOCHEN KRUECKER, ANANTH RAVI, FALK UHLEMANN, CYNTHIA MING-FU KUNG, THOMAS ERIK AMTHOR
  • Publication number: 20170265840
    Abstract: An intervention system employs an optical shape sensing tool (32) (e.g., a brachytherapy needle having embedded optical fiber(s) and a grid (50, 90) for guiding an insertion of the optical shape sensing tool (32) into an anatomical region relative to a grid coordinate system. The intervention system further employs a registration controller (74) for reconstructing a segment or an entirety of a shape of the optical shape sensing tool (32) relative to a needle coordinate system, and for registering the needle coordinate system to the grid coordinate system as a function of a reconstructed segment/entire shape of the optical shape sensing tool (32) relative to the grid (50, 90) (i.e., reconstruction of a segment/entire shape of the OSS needle inserted into/through the grid serving as a basis for the grid/needle coordinate system registration).
    Type: Application
    Filed: November 30, 2015
    Publication date: September 21, 2017
    Inventors: SHYAM BHARAT, EHSAN DEHGHAN MARVAST, MOLLY LARA FLEXMAN, JOCHEN KRUECKER, MARISSA PATROCOA DREYER, AMIR MOHAMMAD THMASEBI MARAGHOOSH