Method for correcting electrocardiographic lead misconnection
An electrocardiogram and lead technology, applied in the medical field, can solve problems such as misconnection between leads, lack of treatment methods, and complicated lead connection errors, so as to simplify the operation process, ease the relationship between doctors and patients, and save examination time and paper costs Effect
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Embodiment 1
[0031] A method for correcting lead misconnection used in Wilson standard 12-lead electrocardiogram, comprising the steps:
[0032] S1: According to the Wilson standard 12-lead system, such as figure 1 As shown, calculate the transformation matrix T that converts the lead value vector into the electrode voltage value vector under the lead system L2E , and the transformation matrix T that transforms the electrode voltage value vector into the lead value vector E2L , the specific method is:
[0033] According to the Wilson standard 12-lead ECG connection method, considering that other data of limb leads can be derived from leads II and III, the lead vector L=(ⅡⅢ V1 V2 V3 V4 V5 V6) is defined T , that is, the number of independent leads is 8, and the electrode potential vector E=(E F E. RA E. LA E. C1 E. C2 E. C3 E. C4 E. C5 E. C6 ) T , according to the calculation method of Wilson lead:
[0034] E. WCT =1 / 3*(E F +E RA +E LA )
[0035] II=E F -E RA
...
Embodiment 2
[0050] In this embodiment, it is assumed that it is a complex misconnection method under the Wilson standard 12-conductor system: F and C1 are reversed, and LA and C2 are reversed. The correcting steps are basically the same as those in the above-mentioned first embodiment, and will not be described again. The difference is that in step S3, only the following permutation matrix T' PMT Replacing the permutation matrix T of Embodiment 1 PMT :
[0051] T ' MPT = 0 0 1 0 0 0 0 0 0 0 1 ...
Embodiment 3
[0056] A method for correcting lead misconnection used in an EASI lead system electrocardiogram, comprising the steps of:
[0057] S1: According to the EASI lead system, such as image 3 As shown, calculate the conversion matrix T" for the conversion of the lead value vector into the electrode voltage value vector under the lead system" L2E , and the transformation matrix T” that converts the electrode voltage value vector into the lead value vector” E2L , the specific method is:
[0058] According to the connection mode of the EASI lead ECG, define the lead vector L”=(ES AS AI) T , electrode potential vector E"=(E E E. A E. S E. I ) T , according to the calculation method of EASI lead:
[0059] ES=E E -E S
[0060] AS=E A -E S
[0061] AI=E A -E I
[0062] The transformation matrix T" that transforms the lead value vector into the electrode voltage value vector can be derived" L2E , and the transformation matrix T” that converts the electrode voltage valu...
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