Before seeing the whole case report, the option such as "Normal Beats" will show the word "Not
Judge". When the result is in the range that "Danger number" indicates, the corresponding result
will turn to red to remind the user.
T Wave alternation analysis module
Click
button to enter the T Wave alternation analysis module.
T wave alternation (TWA) is a periodic beat-to-beat variation in the amplitude or shape of the T
wave in an electrocardiogram, and the variation of the amplitude is ≥ 0.1mV. TWA is a
important index on judging and preventing Arrhythmia.
The analysis adopts TWA measure basing on the maximum of T wave. The general method is:
choose continuous 8 (16, 32 …128) waveforms, number QRS waveform from the first one, such
as 1, 2, 3, ……, 8, then compare the maximum of T wave. If the difference of T wave is larger
than the range that has preestablished, there is TWA phenomena. After comparing, carry out
superposition of the singular number (1, 3, 5……) wave and superposition of dual number (2, 4,
6……) wave respectively, then draw the result after superposition, it will be more obvious as
Fig.6-29:
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