英语语法分析

After 6-week treatment, Holter and ultrasound cardiography were performed.

治疗6周后复查两组的动态心电图、超声心动图。

Objective To Validte the Yeliabil of left ventricle ejection fraction(LEF) measured by reconstructed impedance cardiography(RICG).

目的验证重建心阻抗图测量左室射血分数（LEF）的可靠性。

Aim: To ascertain the diagnostic accuracy and clinical efficacy of vector-cardiography(VCG) for diagnosing conduction block in left forearm(LAFB).

目的：探讨心电向量图（VCG）诊断左前分支传导阻滞（LAFB）的准确性及临床应用价值。