An Improved Sliding Window Area Method for T Wave Detection

Table 1

Summary of the annotative information of the QT and the European ST-T databases.

Variable	QT database		European ST-T database
	Onset	Offset	Onset	Offset
No. of recordings	43	105	23	23
No. of annotated beats	1371	3542	14337	14337
Min. Dis_qrs (ms)	52	228	60	220
Max. Dis_qrs (ms)	412	784	264	612
Mean of Dis_qrs (ms)	164	360	160	380
SD of Dis_qrs (ms)	60	71	29	47

Dis_qrs: the time interval between the T wave onset/offset and the R wave position within the current beat; SD: standard deviation. The annotations of the QT database are taken from the database website https://www.physionet.org/physiobank/database/qtdb/doc/index.shtml.