Patents by Inventor Vikram Chalana

Vikram Chalana 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).

  • Patent number: 7727150
    Abstract: An ultrasound system and method to measure an organ wall weight and mass. When the organ is a bladder, a bladder weight (UEBW) is determined using three-dimensional ultrasound imaging that is acquired using a hand-held or machine controlled ultrasound transceiver. The infravesical region of the bladder is delineated on this 3D data set to enable the calculation of urine volume and the bladder surface area. The outer anterior wall of the bladder is delineated to enable the calculation of the bladder wall thickness (BWT). The UEBW is calculated as a product of the bladder surface area, the bladder wall thickness, and the bladder wall specific gravity.
    Type: Grant
    Filed: December 6, 2005
    Date of Patent: June 1, 2010
    Assignee: Verathon Inc.
    Inventors: Vikram Chalana, Stephen Dudycha, Jongtae Yuk, Gerald McMorrow
  • Publication number: 20100036252
    Abstract: An ultrasound transceiver scans an organ and processes the echogenic signals to produce three-dimensional, two-dimensional, and one-dimensional information of the organ. The 3-D, 2-D, and 1-D information is utilized to determine the thickness, surface area, volume, and mass of the organ wall.
    Type: Application
    Filed: July 2, 2009
    Publication date: February 11, 2010
    Inventors: Vikram Chalana, Stephen Dudycha, Gerald McMorrow, Jongtae Yuk, Tim Shelton, Bill Barnard
  • Patent number: 7611466
    Abstract: An ultrasound transceiver scans an organ and processes the echogenic signals to produce three-dimensional, two-dimensional, and one-dimensional information of the organ. The 3-D, 2-D, and 1-D information is utilized to determine the thickness, surface area, volume, and mass of the organ wall.
    Type: Grant
    Filed: February 17, 2005
    Date of Patent: November 3, 2009
    Assignee: Verathon Inc.
    Inventors: Vikram Chalana, Stephen Dudycha, Gerald McMorrow, Jongtae Yuk, Tim Shelton, Bill Barnard
  • Publication number: 20090112089
    Abstract: An ultrasound transceiver scans a bladder in a three dimensional array to measure the thickness and surface area of the bladder to determine bladder mass. The bladder wall thickness and masses may be determined for anterior, posterior, and lateral locations of the bladder.
    Type: Application
    Filed: October 27, 2007
    Publication date: April 30, 2009
    Inventors: Bill Barnard, Stephen Dudycha, Vikram Chalana, Jongtae Yuk, Gerald McMorrow
  • Patent number: 7520857
    Abstract: A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: April 21, 2009
    Assignee: Verathon Inc.
    Inventors: Vikram Chalana, Stephen Dudycha, Gerald McMorrow
  • Patent number: 7450746
    Abstract: Ultrasound systems and methods are described to measure changes in cardiac chamber volumes and organ wall areas, thicknesses, volumes and masses between the cardiac chambers using computer readable media employing image processing algorithms applied to 3D data sets acquired at systole and diastole. The systems for cardiac imaging includes an ultrasound transceiver configured to sense the mitral valve of a heart by Doppler ultrasound, an electrocardiograph connected with a patient and synchronized with the transceiver to acquire ultrasound-based 3D data sets during systole and diastole at a transceiver location determined by Doppler ultrasound affected by the mitral valve, and a computer readable medium configurable to process ultrasound imaging information from the 3D data sets communicated from the transceiver.
    Type: Grant
    Filed: July 26, 2006
    Date of Patent: November 11, 2008
    Assignee: Verathon Inc.
    Inventors: Fuxing Yang, Jongtae Yuk, Vikram Chalana, Steven J. Shankle, Stephen Dudycha, Gerald McMorrow
  • Publication number: 20080262356
    Abstract: Systems and methods for ultrasound imaging using an inertial reference unit are disclosed. In one embodiment, an ultrasound imaging system includes an ultrasound unit configured to ultrasonically scan at least one plane within a region of interest in a subject and generate imaging information from the scan. An inertial reference unit is provided that detects relative positions of the ultrasound unit as the ultrasound unit scans a plurality of plane. A processing unit is configured to receive the imaging information and the corresponding detected position and is operable to generate images of the region of interest.
    Type: Application
    Filed: October 27, 2007
    Publication date: October 23, 2008
    Inventors: Vikram Chalana, Gerald McMorrow, Jongtae Yuk
  • Publication number: 20080249414
    Abstract: A system and method to acquire 3D ultrasound-based images during the end-systole and end-diastole time points of a cardiac cycle to allow determination of the change and percentage change in left ventricle volume at the time points.
    Type: Application
    Filed: October 27, 2007
    Publication date: October 9, 2008
    Inventors: Fuxing Yang, Jongtae Yuk, Vikram Chalana, Steven J. Shankle, Stephen Dudycha, Gerald J. McMorrow
  • Publication number: 20080242985
    Abstract: A hand-held 3D ultrasound instrument is disclosed which is used to non-d invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.
    Type: Application
    Filed: October 26, 2007
    Publication date: October 2, 2008
    Inventors: Vikram Chalana, Stephen Dudycha, Gerald McMorrow
  • Publication number: 20080181479
    Abstract: Ultrasound systems and methods are described to measure changes in cardiac chamber volumes and organ wall areas, thicknesses, volumes and masses between the cardiac chambers using computer readable media employing image processing algorithms applied to 3D data sets acquired at systole and diastole. The systems for cardiac imaging includes an ultrasound transceiver configured to sense the mitral valve of a heart by Doppler ultrasound, an electrocardiograph connected with a patient and synchronized with the transceiver to acquire ultrasound-based 3D data sets during systole and diastole at a transceiver location determined by Doppler ultrasound affected by the mitral valve, and a computer readable medium configurable to process ultrasound imaging information from the 3D data sets communicated from the transceiver.
    Type: Application
    Filed: July 26, 2006
    Publication date: July 31, 2008
    Inventors: Fuxing Yang, Jongtae Yuk, Vikram Chalana, Steven Shankle, Stephen Dudycha, Gerald McMorrow
  • Publication number: 20080146932
    Abstract: A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.
    Type: Application
    Filed: October 27, 2007
    Publication date: June 19, 2008
    Inventors: Vikram Chalana, Yanwei Wang, Fuxing Yang, Susannah Helen Bloch, Stephen Dudycha, Gerald McMorrow
  • Publication number: 20080139934
    Abstract: Ultrasound imaging systems and methods are disclosed. In one embodiment, an ultrasonography method includes creating a database that is representative of a tissue, a fluid, or a cavity of a body, and transmitting ultrasound pulses into a region-of-interest in a patient. Echoes are received from the region of interest, and based upon the received echoes, compiling an ultrasonic pattern of the region-of-interest is compiled. The pattern is processed by comparing the region-of-interest patterns to the pattern information stored in the database. A composition within the region-of-interest of the patient is then determined.
    Type: Application
    Filed: October 27, 2007
    Publication date: June 12, 2008
    Inventors: Gerald McMorrow, Vikram Chalana, Jongtae Yuk, Henri Baartmans, Nicolaas Bom, Charles Theodoor Lancee, Egon J.W. Merks
  • Patent number: 7331925
    Abstract: A system which includes at least one ultrasound data collection device which is programmable to carry out a specific ultrasound procedure on a selected part of a human body of a patient. The resulting ultrasound data is transmitted via a local server at the site of the data collection device to the internet and from there to a web database server which processes the raw ultrasound data to produce medical result information, including ultrasound images, which is then sent to a skilled technician, who accepts the results, rejects or edits them. Accepted medical results are transmitted back to the medical practitioner, while edited medical results are reprocessed, the results of which are transmitted to the medical practitioner.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: February 19, 2008
    Assignee: Verathon, Inc.
    Inventors: Gerald J. McMorrow, William Barnard, Stephen Dudycha, Timothy Shelton, Vikram Chalana
  • Publication number: 20070276247
    Abstract: Systems and methods for ultrasound imaging using an inertial reference unit are disclosed. In one embodiment, an ultrasound imaging system includes an ultrasound unit configured to ultrasonically scan at least one plane within a region of interest in a subject and generate imaging information from the scan. An inertial reference unit is provided that detects relative positions of the ultrasound unit as the ultrasound unit scans a plurality of plane. A processing unit is configured to receive the imaging information and the corresponding detected position and is operable to generate images of the region of interest.
    Type: Application
    Filed: September 8, 2005
    Publication date: November 29, 2007
    Inventors: Vikram Chalana, Gerald McMorrow, Jongtae Yuk
  • Publication number: 20070106705
    Abstract: Data within database and/or spreadsheet programs of a first computer system are made recognizable by a second computer system. The recognizable data serves to facilitate either data processing within the first computer system by instructions received from the second computer system and/or to transfer the recognizable data of the first computer system to the database and/or spreadsheet program of the second computer system for subsequent processing by the second computer system.
    Type: Application
    Filed: November 6, 2006
    Publication date: May 10, 2007
    Inventor: Vikram Chalana
  • Publication number: 20070004983
    Abstract: An ultrasound system and method to measure an organ wall weight and mass. When the organ is a bladder, a bladder weight (UEBW) is determined using three-dimensional ultrasound imaging that is acquired using a hand-held or machine controlled ultrasound transceiver. The infravesical region of the bladder is delineated on this 3D data set to enable the calculation of urine volume and the bladder surface area. The outer anterior wall of the bladder is delineated to enable the calculation of the bladder wall thickness (BWT). The UEBW is calculated as a product of the bladder surface area, the bladder wall thickness, and the bladder wall specific gravity.
    Type: Application
    Filed: December 6, 2005
    Publication date: January 4, 2007
    Inventors: Vikram Chalana, Stephen Dudycha, Jongtae Yuk, Gerald McMorrow
  • Patent number: 7158692
    Abstract: A system for image registration and quantitative feature extraction for multiple image sets. The system includes an imaging workstation having a data processor and memory in communication with a database server in communication. The a data processor capable of inputting and outputting data and instructions to peripheral devices and operating pursuant to a software product and accepts instructions from a graphical user interface capable of interfacing with and navigating the imaging software product. The imaging software product is capable of instructing the data processor, to register images, segment images and to extract features from images and provide instructions to store and retrieve one or more registered images, segmented images, quantitative image features and quantitative image data and from the database server.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: January 2, 2007
    Assignee: Insightful Corporation
    Inventors: Vikram Chalana, Stephen Fogarasi, Lydia Ng, John Oelund, Sayan Pathak, Steven Racki, Bobbi Sparks, Bradley Wyman
  • Publication number: 20060235301
    Abstract: A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.
    Type: Application
    Filed: February 24, 2006
    Publication date: October 19, 2006
    Inventors: Vikram Chalana, Gerald McMorrow, Stephen Dudycha
  • Patent number: 7087022
    Abstract: A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: August 8, 2006
    Assignee: Diagnostic Ultrasound Corporation
    Inventors: Vikram Chalana, Stephen Dudycha, Gerald McMorrow
  • Patent number: 7041059
    Abstract: A hand-held 3D ultrasound instrument is disclosed which is used to non-invasively and automatically measure amniotic fluid volume in the uterus requiring a minimum of operator intervention. Using a 2D image-processing algorithm, the instrument gives automatic feedback to the user about where to acquire the 3D image set. The user acquires one or more 3D data sets covering all of the amniotic fluid in the uterus and this data is then processed using an optimized 3D algorithm to output the total amniotic fluid volume corrected for any fetal head brain volume contributions.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: May 9, 2006
    Assignee: Diagnostic Ultrasound Corporation
    Inventors: Vikram Chalana, Stephen Dudycha, Gerald McMorrow