公开(公告)号：US20190304406A1

公开(公告)日：2019-10-03

申请号：US16466122

申请日：2017-12-05

Applicant: Case Western Reserve University

Inventor： Mark A. Griswold ,  Erin Henninger ,  Jeff Mlakar ,  Henry Eastman ,  Robert Gotschall ,  Catherine Sue Schick ,  Galen Tingle

IPC: G09G5/14 ,  G06F3/01 ,  G06T19/00 ,  G06T15/20 ,  G06F3/0346

Abstract: Systems, methods, and media for displaying interactive augmented reality presentations are provided. In some embodiments, a system comprises: a plurality of head mounted displays, a first head mounted display comprising a transparent display; and at least one processor, wherein the at least one processor is programmed to: determine that a first physical location of a plurality of physical locations in a physical environment of the head mounted display is located closest to the head mounted display; receive first content comprising a first three dimensional model; receive second content comprising a second three dimensional model; present, using the transparent display, a first view of the first three dimensional model at a first time; and present, using the transparent display, a first view of the second three dimensional model at a second time subsequent to the first time based one or more instructions received from a server.

公开(公告)号：US20190120921A1

公开(公告)日：2019-04-25

申请号：US16169694

申请日：2018-10-24

Applicant: Case Western Reserve University

Inventor： Rasim Boyacioglu ,  Debra McGivney ,  Mark A. Griswold

IPC: G01R33/56 ,  G01R33/54 ,  G01R33/48 ,  G01R33/50

Abstract: Systems and methods are provided for Magnetic Resonance Fingerprinting (MRF) using Independent Component Analysis (ICA) to distinguish between different tissue types. In some configurations, an MRF acquisition may be performed to be sensitive to a selected tissue property or parameter, and tissues may be grouped into separate independent components based on their time courses which may be based on the underlying tissue property.

公开(公告)号：USD838726S1

公开(公告)日：2019-01-22

申请号：US29601331

申请日：2017-04-21

Applicant: Case Western Reserve University

Designer： Mark A. Griswold

公开(公告)号：US20240290299A1

公开(公告)日：2024-08-29

申请号：US18656980

申请日：2024-05-07

Applicant: Case Western Reserve University

Inventor： Mark A. Griswold ,  Henry Eastman ,  Robert Gotschall

IPC: G09G5/14 ,  G02B27/01 ,  G06F3/01 ,  G06F3/0346 ,  G06T15/20 ,  G06T19/00 ,  H04L67/10

CPC classification number: G09G5/14 ,  G02B27/017 ,  G06F3/011 ,  G06F3/012 ,  G06F3/0346 ,  G06T15/20 ,  G06T19/00 ,  G06T19/006 ,  G02B2027/0134 ,  G06T2200/04 ,  G06T2200/24 ,  G06T2219/024 ,  G09G2354/00 ,  G09G2370/022 ,  H04L67/10

Abstract: Systems, methods, and media for displaying interactive augmented reality presentations are provided. In some embodiments, a system comprises: a head mounted display comprising: a transparent display; a plurality of sensors; and at least one processor, wherein the at least one processor is programmed to: select a content display location of a plurality of predetermined content display locations to use to present content based at least in part on a location of the head mounted display within a current physical environment; and cause content to be presented by the head mounted display anchored at the selected content display location.

公开(公告)号：US20240005892A1

公开(公告)日：2024-01-04

申请号：US18102332

申请日：2023-01-27

Applicant: Case Western Reserve University

Inventor： Mark A. Griswold ,  Erin Henninger ,  Jeff Mlakar ,  Henry Eastman ,  Robert Gotschall ,  Catherine Sue Shick ,  Galen Tingle

IPC: G09G5/14 ,  G06F3/01 ,  G06F3/0346 ,  G06T15/20 ,  G06T19/00 ,  G02B27/01

CPC classification number: G09G5/14 ,  G06F3/012 ,  G06F3/0346 ,  G06T15/20 ,  G06T19/006 ,  G06F3/011 ,  G02B27/017 ,  G06T19/00 ,  G06T2200/04 ,  G06T2200/24 ,  G06T2219/024 ,  G09G2354/00 ,  G09G2370/022 ,  H04L67/10

Abstract: Systems, methods, and media for displaying interactive augmented reality presentations are provided. In some embodiments, a system comprises: a plurality of head mounted displays, a first head mounted display comprising a transparent display; and at least one processor, wherein the at least one processor is programmed to: determine that a first physical location of a plurality of physical locations in a physical environment of the head mounted display is located closest to the head mounted display; receive first content comprising a first three dimensional model; receive second content comprising a second three dimensional model; present, using the transparent display, a first view of the first three dimensional model at a first time; and present, using the transparent display, a first view of the second three dimensional model at a second time subsequent to the first time based one or more instructions received from a server.

公开(公告)号：US11747421B2

公开(公告)日：2023-09-05

申请号：US16416707

申请日：2019-05-20

Applicant: Case Western Reserve University

Inventor： Vikas Gulani ,  Satyam Ghodasara ,  Katherine Wright ,  Nicole Seiberlich ,  Mark A. Griswold

IPC: G01R33/56 ,  G01R33/563

CPC classification number: G01R33/5608 ,  G01R33/5601 ,  G01R33/56366

Abstract: The present application provides a system and method for quantifying perfusion using a dictionary matching approach. In some aspects, the method comprises performing a predetermined pulse sequence using an MRI system to acquire MRI data from the subject after having delivered a dose of a contrast agent to the subject. The method also includes comparing the MRI data to a dictionary to determine perfusion information, and generating, using the perfusion information, a report indicative of perfusion within the subject.

公开(公告)号：US20220349971A1

公开(公告)日：2022-11-03

申请号：US17661736

申请日：2022-05-02

Applicant: Case Western Reserve University ,  University College Cardiff Consultants Limited

Inventor： Dan Ma ,  Mark A. Griswold ,  Derek Jones ,  Maryam Afzall ,  Lars Mueller

IPC: G01R33/50 ,  G01R33/56 ,  G01R33/563

Abstract: A method for multi-dimensional, relaxation-diffusion magnetic resonance fingerprinting (MRF) includes performing, using a magnetic resonance imaging (MRI) system, a pulse sequence that integrates free-waveform b-tensor diffusion encoding into a magnet resonance fingerprinting pulse sequence to perform a multi-dimensional, relaxation-diffusion encoding while acquiring MRF signal evolutions, processing, using a processor, the acquired MRF signal evolutions to determine at least one relaxation parameter and at least one diffusivity parameter, and generating, using the processor, a report including at least one of the at least one relaxation parameter and the at least diffusivity parameter.

公开(公告)号：US11313931B2

公开(公告)日：2022-04-26

申请号：US16415474

申请日：2019-05-17

Applicant: Case Western Reserve University

Inventor： Yuchi Liu ,  Jesse Hamilton ,  Nicole Seiberlich ,  Mark A. Griswold

IPC: G01R33/50 ,  G01R33/54

Abstract: A method for quantifying T1, T2 and resonance frequency simultaneously using magnetic resonance fingerprinting (MRF) includes accessing an MRF dictionary using a magnetic resonance imaging (MRI) system. The MRF dictionary is generated by simulating signal evolutions that include associated off-resonance effects for each signal evolution. The method further includes acquiring MRF data from a region of interest in a subject using the MRI system and a MRF pulse sequence having a plurality of radio frequency (RF) excitations and a readout associated with each RF excitation. Each readout includes a plurality of segments and each segment is used to generate a time frame. The method also include comparing the MRF data to the MRF dictionary to identify a plurality of parameters including T1, T2 and resonance frequency for the MRF data and generating a report indicating the at least one of the plurality of parameters of the MRF data.

公开(公告)号：US20220013084A1

公开(公告)日：2022-01-13

申请号：US17180007

申请日：2021-02-19

Applicant: Case Western Reserve University

Inventor： Mark A. Griswold ,  Erin Henninger ,  Jeff Mlakar ,  Henry Eastman ,  Robert Gotschall ,  Catherine Sue Shick ,  Galen Tingle

IPC: G09G5/14 ,  G06F3/01 ,  G06F3/0346 ,  G06T15/20 ,  G06T19/00 ,  G02B27/01

Abstract: Systems, methods, and media for displaying interactive augmented reality presentations are provided. In some embodiments, a system comprises: a plurality of head mounted displays, a first head mounted display comprising a transparent display; and at least one processor, wherein the at least one processor is programmed to: determine that a first physical location of a plurality of physical locations in a physical environment of the head mounted display is located closest to the head mounted display; receive first content comprising a first three dimensional model; receive second content comprising a second three dimensional model; present, using the transparent display, a first view of the first three dimensional model at a first time; and present, using the transparent display, a first view of the second three dimensional model at a second time subsequent to the first time based one or more instructions received from a server.

公开(公告)号：US11181595B2

公开(公告)日：2021-11-23

申请号：US16603312

申请日：2018-04-06

Applicant: Case Western Reserve University

Inventor： Bhairav Bipin Mehta ,  Simone Coppo ,  Michael Twieg ,  Mark A. Griswold

IPC: G01R33/483 ,  G01R33/56 ,  G01R33/561

Abstract: Systems and methods are provided for acquiring imaging data from one or more resonance species that simultaneously produce individual magnetic resonance signals in a plurality of different slices. The data is acquired by simultaneously exciting, using a pTX RF coil array, a plurality of different slices such that at least some of the plurality of different slices are excited by transmitting RF energy from a subset of transmit channels in the pTX RF coil array. The method also includes comparing the data to a dictionary of signal evolutions to determine quantitative values for two or more parameters of the resonant species based, at least in part, on matching the data to a set of known signal evolutions stored in the dictionary. The method includes producing an image for each of the plurality of different slice locations, at least in part, on the quantitative values.