US2020225307A1PendingUtilityA1

System, method and computer-accessible medium for dynamic magnetic resonance imaging

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Assignee: UNIV NEW YORKPriority: Apr 19, 2012Filed: Mar 30, 2020Published: Jul 16, 2020
Est. expiryApr 19, 2032(~5.8 yrs left)· nominal 20-yr term from priority
A61B 5/055G01R 33/56308G01R 33/28G01R 33/4824A61B 5/7207G01R 33/5611G01R 33/561G01R 33/4822
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Claims

Abstract

Exemplary method, system and computer-accessible medium can be provided which facilitates an acquisition of radial data, which can be continuous, with an exemplary golden-angle procedure and reconstruction with arbitrary temporal resolution at arbitrary time points. According to such exemplary embodiment, such procedure can be performed with a combination of compressed sensing and parallel imaging to offer a significant improvement, for example in the reconstruction of highly undersampled data. It is also possible to provide an exemplary procedure for highly-accelerated dynamic magnetic resonance imaging using Golden-Angle radial sampling and multicoil compressed sensing reconstruction, called Golden-angle Radial Sparse Parallel MRI (GRASP).

Claims

exact text as granted — not AI-modified
1 . A non-transitory computer-accessible medium having stored thereon computer-executable instructions for reconstructing data associated with at least one object, wherein, when a computer hardware arrangement executes the instructions, the computer arrangement is configured to perform procedures comprising:
 acquiring radial data based on a golden-angle procedure;   assembling the acquired radial data into at least one time-series having an arbitrary temporal resolution; and   reconstructing the data using a compressed sensing procedure and a parallel imaging procedure based on the assembled data.   
     
     
         2 . The computer-accessible medium of  claim 1 , wherein the radial data includes magnetic resonance imaging data. 
     
     
         3 . The computer-accessible medium of  claim 1 , wherein the radial data comprises a plurality of radial lines. 
     
     
         4 - 6 . (canceled) 
     
     
         7 . The computer-accessible medium of  claim 3 , wherein the reconstruction procedure is performed based on a first group of consecutive ones of the radial lines used to generate at least one temporal frame. 
     
     
         8 . The computer-accessible medium of  claim 7 , wherein the reconstruction procedure is performed based on a second group of the consecutive ones of the radial lines used to generate at least one further temporal frame, the second group having different radial lines than the first group. 
     
     
         9 . The computer-accessible medium of  claim 7 , wherein the reconstruction procedure is performed based on a target shape for each temporal frame. 
     
     
         10 . (canceled) 
     
     
         11 . The computer-accessible medium of  claim 3 , wherein the reconstruction procedure is performed at arbitrary time points by centering a group of consecutive ones of the radial lines at different points during an acquisition period. 
     
     
         12 . The computer-accessible medium of  claim 1 , wherein the acquiring procedure comprises acquiring all slices for a given projection for a particular golden-angle before proceeding to a next golden-angle. 
     
     
         13 . (canceled). 
     
     
         14 . The computer-accessible medium of  claim 13 , wherein the reconstruction procedure is performed based on a physiological motion of at least one anatomical structure. 
     
     
         15 . The computer-accessible medium of  claim 14 , wherein the physiological motion is an expiratory phase of the at least one anatomical structure. 
     
     
         16 . The computer-accessible medium of  claim 15 , wherein the expiratory phase is based on a respiratory motion signal of the at least one anatomical structure. 
     
     
         17 . (canceled) 
     
     
         18 . The computer-accessible medium of  claim 1 , wherein the reconstruction procedure is performed based on coil sensitivity maps of at least one exemplary multicoil reference image. 
     
     
         19 . (canceled) 
     
     
         20 . The computer-accessible medium of  claim 1 , wherein the reconstruction procedure is performed based on sorting the radial data into highly undersampled temporal frames by grouping a particular number of consecutive ones of the radial lines to form each temporal frame. 
     
     
         21 . The computer-accessible medium of  claim 20 , wherein the particular number is a Fibonacci number. 
     
     
         22 . The computer-accessible medium of  claim 1 , wherein the radial data is based on k-space sampling of the at least one object. 
     
     
         23 . The computer-accessible medium of  claim 22 , wherein the k-space sampling is performed using at least one of (a) a stack-of-stars procedure, or (b) a stack-of-spiral procedure. 
     
     
         24 . (canceled) 
     
     
         25 . The computer-accessible medium of  claim 1 , wherein the step of acquiring radial data is performed continuously during the reconstruction procedure. 
     
     
         26 . A method for reconstructing data associated with at least one object, comprising:
 acquiring radial data based on a golden-angle procedure;   assembling the acquired radial data into at least one time-series having an arbitrary temporal resolution; and   using a computer arrangement, reconstructing the data using a compressed sensing procedure and a parallel imaging procedure based on the assembled data.   
     
     
         27 - 50 . (canceled) 
     
     
         51 . A system for reconstructing data associated with at least one object, comprising:
 a computing arrangement which is configured to:
 a. acquiring radial data based on a golden-angle procedure; 
 b. assembling the acquired radial data into at least one time-series having an arbitrary temporal resolution; and 
   c. reconstructing the data using a compressed sensing procedure and a parallel imaging procedure based on the assembled data.   
     
     
         52 - 75 . (canceled)

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