METHOD FOR DETECTING AND QUANTIFYING CEREBRAL INFARCT

摘要

A method for detecting a cerebral infarct includes receiving an image of a brain of a subject from a magnetic resonance imaging scanner, wherein the image has a plurality of voxels, and each of the voxels has a voxel intensity. Then, the voxel intensities are normalized, wherein the normalized voxel intensities have a distribution peak, and the normalized voxel intensity of the distribution peak is Ipeak. A threshold is determined, which is the Ipeak+ a value. Voxel having the normalized voxel intensity larger than the threshold is selected, wherein the selected voxel is the cerebral infarct. A method for quantifying the cerebral infarct is also provided.

主权项

1. A method for detecting a cerebral infarct, comprising:
receiving an image of a brain of a subject from a magnetic resonance imaging scanner, wherein the image has a plurality of voxels, and each of the voxels has a voxel intensity; normalizing the voxel intensities to make the voxel intensities disperse in a standard range, wherein the normalized voxel intensities have a distribution peak, and the normalized voxel intensity of the distribution peak is Ipeak; determining a threshold, which is the Ipeak+ a value, wherein the value is a difference value between a minimum normalized voxel intensity of the cerebral infarct diagnosed by a semi-automatic segmentation method and the Ipeak; and selecting voxel having the normalized voxel intensity larger than the threshold, wherein the selected voxel is the cerebral infarct.