System, method and computer-accessible medium for dynamic magnetic resonance imaging
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-modified1 . 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)Cited by (0)
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