Patents by Inventor Amir MOHAMMAD
Amir MOHAMMAD 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).
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Patent number: 9761005Abstract: A system, apparatus and method for mesh registration including an extraction of a preoperative anatomical mesh from a preoperative anatomical image based on a base topology of an anatomical mesh template, an extraction of an intraoperative anatomical mesh from an intraoperative anatomical image based on a preoperative topology of the preoperative anatomical mesh derived from the base topology of an anatomical mesh template, and a registration of the preoperative anatomical image and the intraoperative anatomical image based on a mapping correspondence between the preoperative anatomical mesh and the intraoperative anatomical mesh established by an intraoperative topology of the intraoperative anatomical mesh derived from the preoperative topology of the preoperative anatomical mesh.Type: GrantFiled: May 8, 2014Date of Patent: September 12, 2017Assignee: Koninklijke Philips N.V.Inventors: Amir Mohammad Tahmasebi Maraghoosh, Jochen Kruecker, Lyubomir Georgiev Zagorchev
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Patent number: 9717481Abstract: A method and system track a location of an object while the object is disposed within a region of interest within biological tissue, the location of the object being determined with respect to a tracking coordinate frame; generate acoustic images of the region of interest, the acoustic images being generated with respect to an acoustic image coordinate frame which is different from the tracking coordinate frame; transform the location of the object from the tracking coordinate frame to the acoustic image coordinate frame; and automatically adjust at least one image resolution parameter of the acoustic images in response to the location of the object with respect to the acoustic image coordinate frame.Type: GrantFiled: January 15, 2014Date of Patent: August 1, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Amir Mohammad Tahmasebi Maraghoosh, Vijay Parthasarathy
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Publication number: 20170079623Abstract: Image co-registration (S390) entails: emitting energy, and responsively and dynamically acquiring images (216), the acquired images having a given dimensionality; selecting, repeatedly, and dynamically with the acquiring, from among the acquired images and, as a result of the selecting, changing, repeatedly, and dynamically, membership in a set (226) of images of the given dimensionality; and, synchronously with the change (S376), dynamically and iteratively registering the set to an image having a dimensionality higher than the given dimensionality. The co-registration is realizable with an imaging probe (140) for the acquiring, and a tracking system for tracking a location, and orientation, of the probe, the registering being specialized for the acquiring with the probe being dynamically, during the acquiring, any one or more of angulated, rotated and translated.Type: ApplicationFiled: April 1, 2015Publication date: March 23, 2017Inventors: Jochen Kruecker, Amir Mohammad Tahmasebi Maraghoosh
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Publication number: 20170014191Abstract: The invention relates to a registration apparatus for registering an elongated introduction element (18), like a catheter or a needle, during an interventional procedure, for instance, a brachytherapy or a biopsy. A guide element (13) comprising at least one opening guides the introduction element when being introduced into a living being (2) through the opening. A temperature profile generation element (14) associated with the opening generates a characteristic temperature profile at the opening for being transferred to the introduction element when being present in the opening. A temperature determination unit (15) determines a temperature along the introduction element, and a registration unit (16) registers the introduction element, wherein the registering comprises identifying the transferred characteristic temperature profile on the introduction element based on the determined temperature.Type: ApplicationFiled: January 28, 2015Publication date: January 19, 2017Inventors: GUILLAUME LEOPOLD THEODORUS FREDERIK HAUTVAST, DIRK BINNEKAMP, SHYAM BHARAT, EHSAN DEHGHAN MARVAST, JOCHEN KRUECKER, MOLLY LARA FLEXMAN, AMIR MOHAMMAD TAHMASEBI MARAGHOOSH
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Publication number: 20170014192Abstract: An electromagnetic (“EM”) tracking configuration system employs an EM quality assurance (“EMQA”) (30) and EM data coordination (“DC”) system (70). For the EMQA system (30), an EM sensor block (40) includes EM sensor(s) (22) positioned and oriented to represent a simulated electromagnetic tracking of interventional tool(s) inserted through electromagnetic sensor block (40) into an anatomical region. As an EM field generator (20) generates an EM field (21) encircling EM sensor(s) (22), an EMQA workstation (50) tests an EM tracking accuracy of an insertion of the interventional tool(s) through the EM sensor block (40) into the anatomical region.Type: ApplicationFiled: March 17, 2015Publication date: January 19, 2017Inventors: SHYAM BHARAT, EHSAN DEHGHAN MARVAST, CYNTHIA MING-FU KUNG, AMIR MOHAMMAD TAHMASEBI MARAGHOOSHMEL, SANDEEP M. DALAL, JOCHEN KRUECKER, ANTONIO BONILLAS VACA, DOUGLAS ALLEN STANTON
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Publication number: 20160324584Abstract: A tool navigation system employing an ultrasound imager (21), a tool tracker (41), a tissue classifier (50) and an image navigator (60). In operation, ultrasound imager (21) generates an ultrasound image of an anatomical region from a scan of the anatomical region by an ultrasound probe (20). As an interventional tool (40) is navigated within the anatomical region, the tool tracker (41) tracks a position of the interventional tool (40) relative to the anatomical region, tissue classifier (50) characterizes the tissue of the anatomical region adjacent the interventional tool (40), and image navigator (60) displays a navigational guide relative to a display of the ultrasound image of the anatomical region.Type: ApplicationFiled: December 26, 2014Publication date: November 10, 2016Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, AMEET KUMAR JAIN, FRANCOIS GUY GERARD MARIE VIGNON
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Publication number: 20160317119Abstract: A system for tracking an instrument including an intraoperative transducer array configured to generate signals from array positions to generate real-time images of an area of interest. The instrument can be a penetrating instrument having a sensor mounted at a position of interest and being responsive to the signals from the array positions. A signal processing module can be provided and configured to determine a position and orientation of the instrument in accordance with the signals and to classify media of the position of interest based upon a response of the sensor to the signals from the array positions. An overlay module can be provided and configured to generate an overlay image registered to the real-time images to identify a position of the position of interest and provide feedback on the media in which the position of interest is positioned. A display can be provided and configured to provide visual feedback of the overlay image on the real-time images.Type: ApplicationFiled: December 16, 2014Publication date: November 3, 2016Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, GUY GERARD MARIE VIGNON, AMEET KUMAR JAIN
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Publication number: 20160310760Abstract: A radiation therapy delivery system (10) includes an ultrasound imaging unit (26), a radiation therapy delivery mechanism (12, 56, 70, 88), a plurality of fiducials (22, 90) located internal to the subject, an image fusion unit (40), and a delivery evaluation unit (38). The ultrasound imaging unit (26) includes a transducer (30) that emits ultrasonic sound waves to image in real-time an anatomic portion of a subject (16) in a first coordinate system. The radiation therapy delivery mechanism (12, 56, 70, 88) delivers amounts of therapeutic radiation in the anatomic portion of the subject in a second coordinate system. The fiducials (22, 90) include implants or a trans-rectal ultrasound probe (80). The image fusion unit (40) registers locations of the plurality of fiducials to at least one of the first and the second coordinate system and tracks the locations of the fiducials in real-time.Type: ApplicationFiled: December 5, 2014Publication date: October 27, 2016Applicant: KONINKLIJKE PHILIPS N.V.Inventors: SHYAM BHARAT, EHSAN DEHGHAN MARVAST, AMEET KUMAR JAIN, AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, FRANCOIS GUY GERARD MARIE VIGNON
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Publication number: 20160217560Abstract: A method for deformable registration involves a reconstruction of a preoperative anatomical image (23) into a preoperative multi-zone image (41) including a plurality of color zones and a reconstruction of an intraoperative anatomical image (33) into an intraoperative multi-zone image (42) including the plurality of color zones, Each color zone represents a different variation of a non-uniform biomechanical property associated with the preoperative anatomical image (23) and the intraoperative anatomical image (33) or a different biomechanical property associated with the preoperative anatomical image (23) and the intraoperative anatomical image (33).Type: ApplicationFiled: September 17, 2014Publication date: July 28, 2016Inventors: Amir Mohammad TAHMASEBI MARAGHOOSH, Jochen KRUECKER
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Publication number: 20160199668Abstract: The invention relates to a HDR brachytherapy system comprising an ultrasound sensor for being arranged at the location of a brachytherapy catheter (12), wherein the ultrasound sensor is adapted to generate an ultrasound signal based on ultrasound radiation, which has been sent by an ultrasound imaging device preferentially comprising a TRUS probe (40) and which has been received by the ultrasound sensor. The position of the ultrasound sensor is determined based on the generated ultrasound signal, and based on this position of the ultrasound sensor the pose and shape of the brachytherapy catheter and/or the position of a HDR radiation source are determined. This allows for a very accurate determination of the pose and shape of the brachytherapy catheter and/or of the position of the HDR radiation source, which in turn can lead to an improved HDR brachytherapy.Type: ApplicationFiled: September 15, 2014Publication date: July 14, 2016Applicant: KONINKLIJKE PHILIPS N.V.Inventors: SHYAM BHARAT, EHSAN DEHGHAN MARVAST, AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, FRANCOIS GUY GERARD MARIE VIGNON, AMEET KUMAR JAIN, DIRK BINNEKAMP
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Publication number: 20160183910Abstract: The invention relates to a system and method in which a Foley catheter (70) or other medical tool which is equipped with ultrasound (US) sensor(s) (72) is inserted into the prostatic urethra. Based on analysis of the US signal received by these US sensors (72) as the US beams from a transrectal US (TRUS) probe (40) or other ultrasound probe sweep the field of view, it is possible to precisely detect and track these US sensors (72) in the same frame of reference as the TRUS images, thereby precisely delineating the Foley catheter and the course of the prostatic urethra. During the procedure, before each seed is dropped, the delivered dose to the prostatic urethra can be computed based on real-time tracking and segmentation of prostatic urethra and dose radiation based on previously dropped seeds and if necessary, the procedure can be re-planned automatically.Type: ApplicationFiled: July 9, 2014Publication date: June 30, 2016Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, FRANCOIS GUY GERARD MARIE VIGNON, SHYAM BHARAT, EHSAN DEHGHAN MARVAST, AMEET KUMAR JAIN
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Publication number: 20160143615Abstract: The invention relates to an imaging apparatus (24) for imaging an introduction element (17) like a needle or a catheter for performing a biopsy or a brachytherapy. The introduction element (17) comprises at least one ultrasound receiver (21) arranged at a known location thereof. An ultrasound probe (12) for being inserted into a living being (2) emits ultrasound signals for acquiring ultrasound data of an inner part (19) of the living being (2). A first tracking unit (3) tracks the location of the introduction element (17) based on a reception of the emitted ultrasound signals by the at least one ultrasound receiver (21), an imaging unit (4) generates an indicator image showing the inner part (19) and an indicator of the introduction element (17) based on the tracked location, and a display (5) displays the indicator image. This allows receiving a feedback about the location of the introduction element (17).Type: ApplicationFiled: June 24, 2014Publication date: May 26, 2016Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, SHYAM BHARAT, ARMEET JAIN, FRANCOIS GUY GERARD MARIE VIGNON, EHSAN DEGHAN MARVAST
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Publication number: 20160098621Abstract: A method for multi-modal tissue classification of an anatomical tissue involves a generation of a tissue classification volume (40) of the anatomical tissue derived from a spatial registration and an image extraction of one or more MRI features of the anatomical tissue and one or more ultrasound image features of the anatomical tissue. The method further involves a classification of each voxel of the tissue classification volume (40) as one of a plurality of tissue types including a healthy tissue voxel and an unhealthy tissue voxel.Type: ApplicationFiled: June 19, 2014Publication date: April 7, 2016Applicant: KONINKLIJKE PHILIPS N.V.Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, SHYAM BHARAT, CHRISTOPHER STEPHEN HALL, JOCHEN KRUECKER
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Publication number: 20160078633Abstract: A method for a mesh segmentation and a mesh registration involves an extraction of a preoperative anatomical mesh (51) from a preoperative anatomical image (50) based on a base topology of an anatomical mesh template (40), an extraction of an intraoperative anatomical mesh (61) from an intraoperative anatomical image (60) based on a preoperative topology of the preoperative anatomical mesh (51) derived from the base topology of an anatomical mesh template (40), and a registration of the preoperative anatomical image (50) and the intraoperative anatomical image (60) based on a mapping correspondence between the preoperative anatomical mesh (51) and the intraoperative anatomical mesh (61) established by an intraoperative topology of the intraoperative anatomical mesh (61) derived from the preoperative topology of the preoperative anatomical mesh (51).Type: ApplicationFiled: May 8, 2014Publication date: March 17, 2016Inventors: Amir Mohammad TAHMASEBI MARAGHOOSH, Jochen KRUECKER, Lyubomir Georgiev ZAGORCHEV
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Publication number: 20160030130Abstract: The invention relates to an imaging apparatus (24) for imaging an introduction element (17) like a needle or a catheter for performing a brachytherapy or a biopsy. A tracking unit (3, 4) tracks the location of the introduction element within a living being (2), an imaging unit (6) like an ultrasound imaging unit generates an image showing an inner part of the living being, which includes the tracked location of the introduction element, based on the tracked location, and a display (7) displays the image. During the brachytherapy or biopsy the display can always show the introduction element, without requiring a manual control. For instance, it is not necessary that a physician manually controls the position and image plane of the imaging unit. This allows for an accurate and fast insertion of the introduction element into the living being such that a target region is reliably reached.Type: ApplicationFiled: April 4, 2014Publication date: February 4, 2016Applicant: KONINKLIJKE PHILIPS N.V.Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, SHYAM BHARAT, EHSAN DEHGHAN MARVAST, VIJAY PARTHASARATHY
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Patent number: 9240032Abstract: A method, system, and computer program product are provided for performing a multi-modal deformable imaging registration between two different modalities for which a functional dependency is missing or very difficult to identify. The method provides a nonlinear mapping between every pair of points in the two image modalities by calculating the nonlinear mapping for only a limited number of identifiable landmarks within the two modalities and a statistical deformation model of the structure of interest.Type: GrantFiled: March 13, 2013Date of Patent: January 19, 2016Assignee: Koninklijke Philips N.V.Inventors: Amir Mohammad Tahmasebi Maraghoosh, Jochen Kruecker, Mahmoudreza Sharifi
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Publication number: 20150342572Abstract: A method and system track a location of an object while the object is disposed within a region of interest within biological tissue, the location of the object being determined with respect to a tracking coordinate frame; generate acoustic images of the region of interest, the acoustic images being generated with respect to an acoustic image coordinate frame which is different from the tracking coordinate frame; transform the location of the object from the tracking coordinate frame to the acoustic image coordinate frame; and automatically adjust at least one image resolution parameter of the acoustic images in response to the location of the object with respect to the acoustic image coordinate frame.Type: ApplicationFiled: January 15, 2014Publication date: December 3, 2015Inventors: AMIR MOHAMMAD TAHMASEBI MARAGHOOSH, VIJAY PARTHASARATHY
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Publication number: 20150306426Abstract: 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: ApplicationFiled: November 8, 2013Publication date: October 29, 2015Inventors: Ehsan Dehghan Marvast, Amir Mohammad Tahmasebi Maraghoosh, Shyam Bharat, Sandeep Dalal, Cynthia Ming-fu Kung, Jochen Kruecker
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Publication number: 20150043794Abstract: A method, system, and computer program product are provided for performing a multi-modal deformable imaging registration between two different modalities for which a functional dependency is missing or very difficult to identify. The method provides a nonlinear mapping between every pair of points in the two image modalities by calculating the nonlinear mapping for only a limited number of identifiable landmarks within the two modalities and a statistical deformation model of the structure of interest.Type: ApplicationFiled: March 13, 2013Publication date: February 12, 2015Inventors: Amir Mohammad Tahmasebi Maraghoosh, Jochen Kruecker, Mahmoudreza Sharifi
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Patent number: 8843279Abstract: An apparatus, method and sensor apparatus for determining a spatial positioning of loading equipment is disclosed. The loading equipment has an operating implement for loading a payload, the operating implement being coupled to a support for movement relative to the support. The apparatus includes an orientation sensor disposed on the support and being operable to produce an orientation signal representing an orientation of the support. The apparatus also includes a displacement sensor operable to produce a displacement signal representing a displacement of the operating implement relative to the support. The apparatus further includes a processor circuit operably configured to receive the orientation signal and the displacement signal, use a kinematic model of the loading equipment to compute a spatial positioning of the loading equipment, and produce an output signal representing the spatial positioning.Type: GrantFiled: June 6, 2011Date of Patent: September 23, 2014Assignee: Motion Metrics International Corp.Inventors: Shahram Tafazoli Bilandi, Amir Mohammad Ahani, Abdol Rasul Rasuli