Low frequency distortions of the electrocardiogram

被引：5

作者：

Daskalov, I

Christov, I

Dotsinsky, I

机构：

[1] Centre of Biomedical Engineering, Bulgarian Academy of Sciences, 1113 Sofia, Acad. G. Bonchev Str.

来源：

MEDICAL ENGINEERING & PHYSICS | 1997年 / 19卷 / 04期

关键词：

electrocardiogram; ST segment distortions; QRS complex; ac amplifier; time-constant; low frequency components; filtering; backward filtering;

D O I：

10.1016/S1350-4533(96)00074-4

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Electrocardiogram (ECG) signals from a database of 400 12-lead ECG records were backward filtered. Phase distortions observed were due to the phase shifts involved in the process of high pass filtering. The larger the area under a monopolar QRS complex, the greater the initial ST segment shift. In cases of longer ST segments, a slight elevation of the end part was attributed to an insufficiently low frequency limit.

引用

页码：387 / 393

页数：7

共 19 条

[1] [Anonymous], 1994, NOMENCLATURE CRITERI, V9th, P253
[2] [Anonymous], 1989, PRINCIPLES CLIN ELEC
[3] ARZBAECHER RC, 1969, IEEE T BIOMEDICAL EN, V14, P252
[4] LOW-FREQUENCY RESPONSE OF ELECTROCARDIOGRAPHS A FREQUENT SOURCE OF RECORDING ERRORS
BERSON, AS
PIPBERGER, HV
[J]. AMERICAN HEART JOURNAL, 1966, 71 (06) : 779 - +
[5] BROSE J, 1988, MED INSTRUM, V22, P2
[6] Caceres C. A, 1970, CLIN ELECTROCARDIOGR
[7] HIGH-PASS FILTERING OF ECG SIGNALS USING QRS ELIMINATION
CHRISTOV, II
DOTSINSKY, IA
DASKALOV, IK
[J]. MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, 1992, 30 (02) : 253 - 256
[8] SELF-BALANCING SYSTEM FOR MEDICAL AND PHYSIOLOGICAL INSTRUMENTATION
COHEN, A
LONGINI, RL
[J]. IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 1971, BM18 (01) : 66 - &
[9] Daskalov I, 1977, Adv Cardiol, V19, P144
[10] MULTICHANNEL DC AMPLIFIER FOR A MICROPROCESSOR ELECTROENCEPHALOGRAPH
DOTSINSKY, IA
CHRISTOV, II
DASKALOV, IK
[J]. MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING, 1991, 29 (03) : 324 - 329

← 1 2 →