Functional magnetic resonance data processing method utilizing partial uniformity method

A technology of functional magnetic resonance and data processing, which can be used in applications, medical science, sensors, etc., and can solve problems such as difficulties

Inactive Publication Date: 2005-06-22
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Obviously, this method needs to be based on previous knowledge to determine the brain area to be studied, but

Method used

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  • Functional magnetic resonance data processing method utilizing partial uniformity method
  • Functional magnetic resonance data processing method utilizing partial uniformity method
  • Functional magnetic resonance data processing method utilizing partial uniformity method

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 , Flowchart of the local consistency method. Step 1: Acquisition and preprocessing of fMRI data:

[0025] The acquisition of brain functional magnetic resonance data is carried out on a magnetic resonance scanner equipped with an echo planar imaging sequence;

[0026] Step 2: For all the time points on the time series of each voxel, sort them by numbers from small to large in the time series;

[0027] Sort the time series of voxels;

[0028] Step 3: Select any voxel A in the brain, and select its nearest K voxels, measure the local consistency of each voxel and its surrounding voxels, and calculate the consistency of each voxel and its surrounding voxels one by one .

[0029] figure 2 , The t-test results of the comparison of the local consistency of brain function between the finger movement state and the resting state. a: comparison of left finger movement and resting state; b: comparison of right finger movement and resting state; L: left side; R: rig...

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Abstract

The invention relates to a functional magnetic resonance data processing method utilizing partial uniformity method which comprises, (1) acquiring and preprocessing brain function magnetic resonant data, (2) sorting the time sequence, (3) local consistency measurement. reading, etc. }, but also for but also for data analysis of non-task condition (such as resting) and brain function magnetic resonance data analysis for other non-linear conditions.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance, in particular to a functional magnetic resonance data processing method using a local consistency method. Background technique [0002] Functional magnetic resonance based on changes in blood oxygen (hereinafter referred to as functional magnetic resonance) has a history of more than ten years. Functional positioning, etc. What is collected by fMRI is the four-dimensional (three-dimensional space + time) data of the brain. Traditional data processing methods generally require that during the data collection process, the subject needs to complete a certain task or different tasks intermittently, such as continuously moving the right finger for 30 seconds, and then rest for 30 seconds or complete another task (such as continuously moving the left finger). In addition, current analysis methods require that the tasks be repeated multiple times to compare the differences in the signal cha...

Claims

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Application Information

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IPC IPC(8): A61B5/055
Inventor 臧玉峰蒋田仔吕英立贺永
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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