Quantitative analysis method of power spectrum in processing functional magnetic resonance data

A technology for functional magnetic resonance and magnetic resonance data, which is used in electrical digital data processing, special data processing applications, diagnostic recording/measurement, etc., and can solve problems such as low-frequency fluctuations that have not yet been retrieved

Inactive Publication Date: 2006-07-05
INST OF AUTOMATION CHINESE ACAD OF SCI
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  • Quantitative analysis method of power spectrum in processing functional magnetic resonance data
  • Quantitative analysis method of power spectrum in processing functional magnetic resonance data
  • Quantitative analysis method of power spectrum in processing functional magnetic resonance data

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[0015] figure 1 A power spectrum quantitative analysis method for processing brain functional magnetic resonance data, the steps of which are as follows:

[0016] Step S1, acquisition of brain functional magnetic resonance data: acquisition of brain functional magnetic resonance data is completed on a magnetic resonance scanner equipped with an echo planar imaging (EPI) sequence. There are no special requirements for the specific parameters of the imaging. The sampling time is preferably about 7 minutes. The repetition time (TR) is generally 2 seconds or 3 seconds. The spatial resolution is generally a few millimeters, such as 3×3mm 2 . If it is in a resting state, there are no special requirements for the cooperation of the subjects. You only need to tell the subjects to quietly close their eyes, try to keep their heads still, and try not to think about problems.

[0017] Step S2. Preprocessing: After data collection, conventional preprocessing is generally required, includ...

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Abstract

A quantitative analysis method for the power spectrum to process the functional magnetic resonance data of brain includes such steps as acquiring functional magnetic resonance data, preprocessing, Fourier transform of time sequence, and quantitative analyzing to power of each frequency range one brain cell by one brain cell.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging, and relates to a quantitative analysis method using power spectrum to process brain functional magnetic resonance data. Background technique [0002] Functional magnetic resonance imaging (fMRI) generally refers to a technique based on blood oxygenation level dependent (BOLD), which has a history of more than ten years and is widely used in living brains. research, such as studying the advanced functions of the human brain, assisting in the functional positioning before brain surgery, 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 (s...

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Application Information

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IPC IPC(8): A61B5/055G06F17/00G06F19/00
Inventor 臧玉峰贺永蒋田仔朱朝喆田丽霞梁猛
Owner INST OF AUTOMATION CHINESE ACAD OF SCI
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