[Spectro-temporal mapping (STM)].
In recent years, various kinds of time-varying spectral analysis which estimate the frequency content of a signal as a function of time have been proposed. Spectro-temporal mapping (STM) is one of such methods with elaborate modification of a simple fixed period analysis. Merits and demerits of this method in clinical application are described in this chapter. Certain technical aspects pertinent to the interpretation of STM were also discussed. In conclusion, STM in present form is inferior to time domain analysis for the prediction of serious ventricular arrhythmias. But it has some usefulness to supplement time domain analysis in noise detection and application to patients with broad QRS complex.
Ebato
M
M
Showa University Fujigaoka Hospital.
Mashima
S
S
D018780:Body Surface Potential Mapping / Q000379:methods*; D002986:Clinical Trials as Topic; D003937:Diagnosis, Differential; D006801:Humans; D011930:Reaction Time; D017180:Tachycardia, Ventricular / Q000175:diagnosis