Method to compute and present brain amyloid in gray matter
First Claim
1. An imaging work station comprising:
- one or more processors programmed to;
receive an image depicting a distribution of a radiotracer in a region of interest that includes the brain;
register the image to a common space defined by a template or an MRI image of the region of interest, the common space including a segmented anatomical feature representing a probability that each voxel is gray matter; and
extract a volume representation of the image which depicts the distribution of the radiotracer in the segmented anatomical feature and suppresses the radiotracer outside of the segmented anatomical feature by combining each voxel of the image with the probability of the voxel being gray matter as represented by the registered common space.
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Abstract
An imaging work station (20) includes one or more processors programmed to receive (170) an image depicting a distribution of a radiotracer in a brain or other region of interest. The radiotracer includes at least one of [18F]-Flutemetamol, [18F]-Florbetaben, and [18F]-Florbetapir which highlights amyloid deposits. The image and a template or an MRI image of the region of interest which includes a segmented anatomical feature, such as gray matter, are registered (180) to a common space. A volume representation of the image which depicts the distribution of the radiotracer in the segmented gray matter and suppresses the radiotracer outside of the segmented anatomical feature in white matter is extracted (210).
16 Citations
16 Claims
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1. An imaging work station comprising:
one or more processors programmed to; receive an image depicting a distribution of a radiotracer in a region of interest that includes the brain; register the image to a common space defined by a template or an MRI image of the region of interest, the common space including a segmented anatomical feature representing a probability that each voxel is gray matter; and extract a volume representation of the image which depicts the distribution of the radiotracer in the segmented anatomical feature and suppresses the radiotracer outside of the segmented anatomical feature by combining each voxel of the image with the probability of the voxel being gray matter as represented by the registered common space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for brain imaging comprising:
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receiving at least one image depicting a distribution of a radiotracer in a region of interest that includes the brain; with one or more processors; registering the image to a common space defined by a template of the region of interest, the common space including a segmented anatomical feature representing a probability that each voxel is gray matter; and extracting a volume representation of the image which depicts the distribution of the radiotracer in the segmented anatomical feature and suppresses the radiotracer outside of the segmented anatomical feature by combining each voxel of the image with the probability of the voxel being gray matter as represented by the registered common space. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. An imaging work station comprising:
one or more processors programmed to; receive a positron emission tomography (PET) or single photon emission computed tomography (SPECT) brain image depicting a distribution of a radiotracer in a region of interest of the brain wherein the radiotracer is taken up by both gray matter and white matter; register the brain image to a common space defined by a template or an MRI image of the region of interest which includes a segmented anatomical feature that represents probability that each voxel is gray matter; and combine each voxel of the registered brain image with the probability of the voxel being gray matter as represented by the segmented anatomical feature of the template or MRI image to extract a volume representation of the brain image which depicts the distribution of the radiotracer in gray matter and suppresses the distribution of the radiotracer in white matter.
Specification