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PROCEDURES FOR MEASURING WEIGHT EXPORT UNDER THE USE OF NMR SPECTROscopy FOR THE IDENTIFICATION OF CHEMICAL SPECIES OF COMPONENT STRUCTURES IN AN OBJECTIVE SECTOR
PROCEDURES FOR MEASURING WEIGHT EXPORT UNDER THE USE OF NMR SPECTROscopy FOR THE IDENTIFICATION OF CHEMICAL SPECIES OF COMPONENT STRUCTURES IN AN OBJECTIVE SECTOR
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机译:在使用NMR光谱下测量重量导出的程序,以识别目标部门组分结构的化学品种
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摘要
A method for identifying the chemical species of various textural elements in a targeted region of tissue wherein a volume of interest (VOI) is selectively excited and a k-encode gradient pulse is applied to induce phase wrap to create a spatial encode for a specific k-value and orientation. The specific k-value is selected based on anticipated texture within the VOI. Multiple sequential samples of the NMR RF signal encoded with the specific k-value are recorded as signal data. The Fourier Transform of the acquired signal data is then taken, wherein for each k-encode, the signal recorded is indicative of the spatial frequency power density at that point in k-space. Each peak in the NMR spectrum is then evaluated, whereby the relative contribution to the texture of tissue in the VOI at a k-value for each chemical species is determined.
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