Patents by Inventor Vasilis Ntziachristos

Vasilis Ntziachristos 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: 20110306857
    Abstract: A method of multi-spectral opto-acoustic tomography (MSOT) imaging of a target tissue including a target tissue biomarker includes illuminating the target tissue with an illumination device emitting at least one pulsed illumination pattern at several illumination wavelengths, detecting pressure signals from the target tissue biomarker with a detector device, wherein the pressure signals being produced in the target tissue are in response to the illumination, and reconstructing a quantitative tomographic image of a distribution of the target tissue biomarker in the target tissue, wherein the pressure signals are analyzed using a photon propagation model which depends on an illuminating light fluence in the target tissue and on the illumination wavelengths, at least one spectral processing scheme, and an inversion scheme providing the tomographic image.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 15, 2011
    Applicant: Helmholtz Zentrum München Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)
    Inventors: Daniel Razansky, Vasilis Ntziachristos
  • Publication number: 20110301453
    Abstract: A method and a system for free space optical tomography provides one or more light source and one or more light sensors spaced, which in one embodiment are spaced apart from and object to be imaged. A surface capture system coupled to a variety of optical models provides the method and system with the ability to render accurate tomographic images though the light has propagated both through a diffuse medium and, in on embodiment, also through free space to the one or more light sensors.
    Type: Application
    Filed: May 3, 2011
    Publication date: December 8, 2011
    Applicant: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Jorge Ripoll
  • Patent number: 7962200
    Abstract: A method and a system for free space optical tomography provides one or more light source and one or more light sensors spaced, which in one embodiment are spaced apart from and object to be imaged. A surface capture system coupled to a variety of optical models provides the method and system with the ability to render accurate tomographic images though the light has propagated both through a diffuse medium and, in on embodiment, also through free space to the one or more light sensors.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: June 14, 2011
    Assignee: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Jorge Ripoll
  • Publication number: 20110087111
    Abstract: A system and method provide normalized fluorescence epi-illumination images and normalized fluorescence transillumination images. The normalization can be used to improve two-dimensional (planar) fluorescence epi-illumination images and two-dimensional (planar) fluorescence transillumination images. The system and method can also provide normalized bioluminescence epi-illumination images and normalized bioluminescence transillumination images. In some arrangements, the system and method can provide imaging of small animals, intro-operative imaging, endoscopic imaging, and/or imaging of hollow organs.
    Type: Application
    Filed: December 20, 2010
    Publication date: April 14, 2011
    Applicant: THE GENERAL HOSPITAL CORPORATION
    Inventor: Vasilis Ntziachristos
  • Publication number: 20110040176
    Abstract: A method of near-field imaging of a region of interest includes emitting an input of near-field electromagnetic radiofrequency energy from a near-field source device into the region of interest, detecting a mechanical wave response generated in the region of interest in response to the near-field electromagnetic energy input using a detector device, and providing image data representing an image of the region of interest based on the mechanical wave response.
    Type: Application
    Filed: February 18, 2009
    Publication date: February 17, 2011
    Applicants: Umwelt (GmbH)
    Inventors: Daniel Razansky, Vasilis Ntziachristos
  • Publication number: 20100292567
    Abstract: A method for tomographic imaging of diffuse medium includes directing waves into a diffusive medium, solving a surface-bounded inversion problem by forward field calculations through decomposition of contributions from the multiple reflections from an arbitrary surface within the diffusive medium or outside the diffusive medium into a sum of different orders of reflection up to an arbitrary order, and using contact or non-contact measurements of waves outside said diffusive medium to generate a tomographic image.
    Type: Application
    Filed: January 15, 2010
    Publication date: November 18, 2010
    Inventors: Jorge Ripoll, Vasilis Ntziachristos, Karen N. Madden
  • Publication number: 20100262015
    Abstract: A method and a system for free space optical tomography provides one or more light source and one or more light sensors spaced, which in one embodiment are spaced apart from and object to be imaged. A surface capture system coupled to a variety of optical models provides the method and system with the ability to render accurate tomographic images though the light has propagated both through a diffuse medium and, in on embodiment, also through free space to the one or more light sensors.
    Type: Application
    Filed: December 7, 2009
    Publication date: October 14, 2010
    Inventors: Vasilis Ntziachristos, Jorge Ripoll
  • Patent number: 7804075
    Abstract: A system for optical tomography includes an apparent light source adapted to project excitation light toward a specimen having fluorescent proteins therein, wherein the excitation light enters the specimen becoming intrinsic light within the specimen, wherein the intrinsic light is adapted to excite fluorescent light from the fluorescent proteins, and wherein the intrinsic light and the fluorescent light are diffuse. A method of optical tomography includes generating the excitation light with the apparent light source, wherein the intrinsic light and the fluorescent light are diffuse.
    Type: Grant
    Filed: March 10, 2005
    Date of Patent: September 28, 2010
    Assignee: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Jorge Ripoll, Giannis Zacharakis
  • Publication number: 20100078576
    Abstract: Optical imaging systems and methods use early photons in order to generate processed fluorescent light images of fluorescent material on or within a tissue. The early photons are generated in accordance with a pulsed light source and an early-photon light receiver. The processed fluorescent light images tend to have improved resolution and imaging accuracy compared with fluorescent light images generated with photons beyond the early photons portions.
    Type: Application
    Filed: April 4, 2008
    Publication date: April 1, 2010
    Applicant: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Mark J. Niedre
  • Patent number: 7647091
    Abstract: A method and a system for free space optical tomography provides one or more light source and one or more light sensors spaced, which in one embodiment are spaced apart from and object to be imaged. A surface capture system coupled to a variety of optical models provides the method and system with the ability to render accurate tomographic images though the light has propagated both through a diffuse medium and, in on embodiment, also through free space to the one or more light sensors.
    Type: Grant
    Filed: February 5, 2004
    Date of Patent: January 12, 2010
    Assignee: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Jorge Ripoll
  • Publication number: 20090192358
    Abstract: Apparatus and method can be provided for obtaining information regarding at least one portion of a biological structure. For example, using a first arrangement, it is possible to generate a first electro-magnetic radiation to be forwarded to the portion and receive, from the portion, a second fluorescent radiation associated with the first electro-magnetic radiation Further, using a second arrangement, it is possible to obtain information associated with the second fluorescent radiation, and generate at least one image of the portion as a function of the second fluorescent radiation. According to an exemplary embodiment of the present invention, the first arrangement can be inserted into at least one lumen, and the image of the portion may be associated with the at least one lumen.
    Type: Application
    Filed: January 28, 2008
    Publication date: July 30, 2009
    Applicant: The General Hospital Corporation
    Inventors: Farouc A. Jaffer, Vasilis Ntziachristos
  • Publication number: 20080312540
    Abstract: A system and method provide normalized fluorescence epi-illumination images and normalized fluorescence transillumination images. The normalization can be used to improve two-dimensional (planar) fluorescence epi-illumination images and two-dimensional (planar) fluorescence transillumination images. The system and method can also provide normalized bioluminescence epi-illumination images and normalized bioluminescence transillumination images. In some arrangements, the system and method can provide imagine of small animals, into-operative imaging, endoscopic imaging, and/or imaging of hollow organs.
    Type: Application
    Filed: December 8, 2005
    Publication date: December 18, 2008
    Inventor: Vasilis Ntziachristos
  • Publication number: 20080219933
    Abstract: This invention relates to a fluorescence-mediated molecular tomographic imaging system, designed to detect near-infrared fluorescence activation in deep tissues. The system can use targeted fluorescent molecular probes or highly sensitive activatable fluorescence molecular probes. Such probes add molecular specificity and yield high fluorescence contrast, to allow early detection and molecular target assessment of diseased tissue, such as cancers, in vivo. The new tomographic imaging system enables three-dimensional localization in deep tissues and quantitation of molecular probes.
    Type: Application
    Filed: May 23, 2008
    Publication date: September 11, 2008
    Inventors: Vasilis Ntziachristos, Ralph Weissleder
  • Patent number: 7383076
    Abstract: This invention relates to a fluorescence-mediated molecular tomographic imaging system, designed to detect near-infrared fluorescence activation in deep tissues. The system can use targeted fluorescent molecular probes or highly sensitive activatable fluorescence molecular probes. Such probes add molecular specificity and yield high fluorescence contrast, to allow early detection and molecular target assessment of diseased tissue, such as cancers, in vivo. The new tomographic imaging system enables three-dimensional localization in deep tissues and quantitation of molecular probes.
    Type: Grant
    Filed: May 22, 2003
    Date of Patent: June 3, 2008
    Assignee: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Ralph Weissleder
  • Publication number: 20070274580
    Abstract: A system for optical tomography includes an apparent light source adapted to project excitation light toward a specimen having fluorescent proteins therein, wherein the excitation light enters the specimen becoming intrinsic light within the specimen, wherein the intrinsic light is adapted to excite fluorescent light from the fluorescent proteins, and wherein the intrinsic light and the fluorescent light are diffuse. A method of optical tomography includes generating the excitation light with the apparent light source, wherein the intrinsic light and the fluorescent light are diffuse.
    Type: Application
    Filed: March 10, 2005
    Publication date: November 29, 2007
    Inventors: Vasilis Ntziachristos, Jorge Ripoll, Giannis Zacharakis
  • Publication number: 20060173354
    Abstract: A method and a system for free space optical tomography provides one or more light source and one or more light sensors spaced, which in one embodiment are spaced apart from and object to be imaged. A surface capture system coupled to a variety of optical models provides the method and system with the ability to render accurate tomographic images though the light has propagated both through a diffuse medium and, in on embodiment, also through free space to the one or more light sensors.
    Type: Application
    Filed: February 5, 2004
    Publication date: August 3, 2006
    Inventors: Vasilis Ntziachristos, Jorge Ripoll
  • Publication number: 20050283071
    Abstract: A method for tomographic imaging of diffuse medium includes directing waves into a diffusive medium, solving a surface-bounded inversion problem by forward field calculations through decomposition of contributions from the multiple reflections from an arbitrary surface within the diffusive medium or outside the diffusive medium into a sum of different orders of reflection up to an arbitrary order, and using contact or non-contact measurements of waves outside said diffusive medium to generate a tomographic image.
    Type: Application
    Filed: December 3, 2004
    Publication date: December 22, 2005
    Applicant: VisEn Medical, Inc.
    Inventors: Jorge Ripoll, Vasilis Ntziachristos, Karen Madden
  • Publication number: 20040015062
    Abstract: This invention relates to a fluorescence-mediated molecular tomographic imaging system, designed to detect near-infrared fluorescence activation in deep tissues. The system can use targeted fluorescent molecular probes or highly sensitive activatable fluorescence molecular probes. Such probes add molecular specificity and yield high fluorescence contrast, to allow early detection and molecular target assessment of diseased tissue, such as cancers, in vivo. The new tomographic imaging system enables three-dimensional localization in deep tissues and quantitation of molecular probes.
    Type: Application
    Filed: May 22, 2003
    Publication date: January 22, 2004
    Inventors: Vasilis Ntziachristos, Ralph Weissleder
  • Patent number: 6615063
    Abstract: This invention relates to a fluorescence-mediated molecular tomographic imaging system, designed to detect near-infrared fluorescence activation in deep tissues. The system can use targeted fluorescent molecular probes or highly sensitive activatable fluorescence molecular probes. Such probes add molecular specificity and yield high fluorescence contrast, to allow early detection and molecular target assessment of diseased tissue, such as cancers, in vivo. The new tomographic imaging system enables three-dimensional localization in deep tissues and quantitation of molecular probes.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: September 2, 2003
    Assignee: The General Hospital Corporation
    Inventors: Vasilis Ntziachristos, Ralph Weissleder
  • Patent number: 6263221
    Abstract: A spectroscopic system for quantifying in vivo concentration of an absorptive pigment in biological tissue includes an oscillator for generating a first carrier waveform of a first frequency on the order of 108 Hz, a light source for generating light of a selected wavelengths modulated by the carrier waveform, and a detector for detecting radiation that has migrated over photon migration paths in the tissue from an input port to a detection port spaced several centimeters apart. The wavelength is sensitive to concentration of an absorptive pigment present in the tissue. A phase detector compares the detected radiation with the introduced radiation and determines therefrom the phase shift of the detected radiation. A processor quantifies the concentration of the absorptive pigment by calculating a value of the absorption coefficient.
    Type: Grant
    Filed: February 13, 1997
    Date of Patent: July 17, 2001
    Assignee: Non-Invasive Technology
    Inventors: Britton Chance, Vasilis Ntziachristos