The embodiment of the invention discloses an electrical impedance tomography measurement method, which is characterized in that the circular array placed in the human body N electrodes, each of the two adjacent electrodes of excitation electrodes for a total of N incentive, incentive, incentive time, in addition to other excitation electrodes N-2 the external electrodes as the measuring electrode, the two electrode selection and the adjacent incentive incentive as the reference electrode, respectively and other measuring electrodes on the measuring electrode, and a pair of measuring electrodes two reference electrode on 2N-7, measurement of electrodes, through the excitation electrode of input excitation current, measuring the voltage data of the 2N-7 measuring electrode, according to all the N N (2N-7) measured by the excitation voltage data acquisition resistance to internal body impedance distribution image, N An integer not less than 8. The embodiment of the invention also discloses another method for measuring electrical impedance tomography. The invention can improve the reliability and validity of measuring the whole data, has enough independent measurement number, less redundancy measurement, and good real-time measurement. Especially in the EIT system, the sensitivity of measurement is low and the signal-to-noise ratio is poor, and better imaging results can be obtained.
【技術(shù)實現(xiàn)步驟摘要】
【技術(shù)保護點】
１．一種電阻抗斷層成像測量方法，其特征在于，在置于人體體表的Ｎ個電極的環(huán)形陣列中，每兩個相鄰電極組成一對激勵電極對進行一次激勵，共進行Ｎ次激勵，一次激勵中，除激勵電極對外的其他Ｎ－２個電極作為測量電極，選取與該次激勵中被激勵電極相鄰的兩個電極作為參考電極，分別與其他測量電極組成測量電極對，以及兩個參考電極組成的一對測量電極對，共２Ｎ－７個測量電極對，通過所述激勵電極對輸入激勵電流后，測量所述２Ｎ－７個測量電極對的電壓數(shù)據(jù)，根據(jù)Ｎ次激勵測量得到的所有Ｎ（２Ｎ－７）個電壓數(shù)據(jù)獲取人體內(nèi)部的電阻抗分布圖像，其中Ｎ為不小于８的整數(shù)。
【技術(shù)特征摘要】
【專利技術(shù)屬性】
技術(shù)研發(fā)人員：鄧娟，沙洪，趙舒，任超世，王妍，王磊，
申請(專利權(quán))人：中國醫(yī)學科學院生物醫(yī)學工程研究所，
類型：發(fā)明
國別省市：12
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