METHOD, APPARATUS AND USER INTERFACE FOR DETERMINING AN ARTERIAL INPUT FUNCTION USED FOR CALCULATING HEMODYNAMIC PARAMETERS
First Claim
1. A method for determining an arterial input function from a magnetic resonance image dataset, the method comprising:
- providing a user interface configured to display at least one magnetic resonance image from the magnetic resonance image dataset and a plurality of time-course graphs simultaneously, the plurality of time-course graphs associated with a selected region of the at least one magnetic resonance image and each time-course graph having associated time-course data;
annotating at least one time-course graph with at least one element that indicates fitness of the time-course data associated with the at least one time-course graph for use in deriving an arterial input function;
receiving a selection of a time-course graph from the plurality of time-course graphs; and
deriving an arterial input function from the time-course data associated with the selected time-course graph.
1 Assignment
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Accused Products
Abstract
A graphical user interface and method allows a user to interactively select an arterial input function. An anatomical image and time-course data corresponding to a selected region of interest are displayed simultaneously. The time-course data is displayed as an array of graphs, annotated with best-fit curves and parameters derived from fitting the time-course data. The region displayed in the graphs may be updated by panning and zooming with a mouse in the image. Time-course data corresponding to a graph is selected for use in deriving an arterial input function. The arterial input function is used to calculate maps of hemodynamic parameters.
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Citations
20 Claims
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1. A method for determining an arterial input function from a magnetic resonance image dataset, the method comprising:
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providing a user interface configured to display at least one magnetic resonance image from the magnetic resonance image dataset and a plurality of time-course graphs simultaneously, the plurality of time-course graphs associated with a selected region of the at least one magnetic resonance image and each time-course graph having associated time-course data; annotating at least one time-course graph with at least one element that indicates fitness of the time-course data associated with the at least one time-course graph for use in deriving an arterial input function; receiving a selection of a time-course graph from the plurality of time-course graphs; and deriving an arterial input function from the time-course data associated with the selected time-course graph. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A computer-readable medium having computer-executable instructions for determining an arterial input function from a magnetic resonance image dataset, the computer-readable medium comprising:
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program code for providing a user interface configured to display at least one magnetic resonance image from the magnetic resonance image dataset and a plurality of time-course graphs simultaneously, the plurality of time-course graphs associated with a selected region of the at least one magnetic resonance image and each time-course graph having associated time-course data; program code for annotating at least one time-course graph with at least one element that indicates fitness of the time-course data associated with the at least one time-course graph for use in deriving an arterial input function; program code for receiving a selection of a time-course graph from the plurality of time-course graphs; and program code for deriving an arterial input function from the time-course data associated with the selected time-course graph. - View Dependent Claims (17)
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18. An apparatus for determining an arterial input function from a magnetic resonance image dataset, the apparatus comprising:
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a user interface configured to display at least one magnetic resonance image from the magnetic resonance image dataset and a plurality of annotated time-course graphs simultaneously and to receive a selection of a time-course graph from the plurality of time-course graphs to be used in deriving an arterial input function; wherein the plurality of annotated time-course graphs are associated with a selected region of the at least one magnetic resonance image. - View Dependent Claims (19)
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20. An apparatus for determining an arterial input function from a magnetic resonance image dataset, the apparatus comprising:
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a processing unit programmed to execute a user interface configured to display at least one magnetic resonance image from the dataset and a plurality of annotated time-course graphs simultaneously and to receive a selection of a time-course graph from the plurality of time-course graphs to be used in deriving an arterial input function; wherein the plurality of annotated time-course graphs are associated with a selected region of the at least one magnetic resonance image.
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Specification