ECG Calculation Method for Use in Generating 12 Lead ECG Measurements from Devices That Have Less Than 10 Electrodes

摘要

A method for generating an ECG measurement associated with a point on a patient's body such as one of the precordial points is disclosed for use with an apparatus that cannot make contact with the leg and the point simultaneously. The method includes simultaneously recording a hand signal and a leg signal during a first time period. The hand signal is also measured during a second time period together with a chest signal corresponding to one of the precordial points. A signal representing the leg signal in the second time period is then computed from the first time period data. A reference signal is then generated from the hand signal and computed leg signal during the second time period. The reference signal is then combined with the chest signal to provide the corresponding precordial signal.

主权项

1. A method for generating an ECG measurement that depends on an average signal that includes signals from the left and right hands and one leg of a patient, said method comprising:
simultaneously recording a hand signal and a leg signal during a first time period, said hand signal comprising a difference of said signals from said left and right hands; recording said hand signal during a second subsequent time period; computing a signal representing said leg signal in said second time period from said leg signal during said first time period by comparing a function of said hand signals during said second time period with said function of said hand signals during said first time period; and generating a computed reference signal representing said leg and hand signals during said second time period.