Objective To introduce a method of computer automatic measurement of QTd.

目的介绍一种计算机自动测量QT离散度方法.

There were positive relations between the QTd and QTlcd and the severity of LVH in hypertension.

高血压左室肥厚者的QT离散度增加且与左室肥厚的程度正相关。