An electrocardiogram (ECG) is an indispensable tool to diagnose cardiac diseases, such as ischemic heart disease, myocarditis, arrhythmia, and cardiomyopathy. Since ECG patterns vary depend on patient status, it is also used to monitor patients during treatment and comparison with ECGs with previous results is important for accurate diagnosis. However, the comparison requires connection to ECG ...

Traditional ECG acquisition system lacks for flexibility. To improve the flexibility of ECG acquisition system and the signal-to-noise ratio of ECG, a new ECG acquisition system was designed based on DAQ card and Labview and oversampling was implemented in Labview. And analog signal conditioning circuit was improved on. The result indicated that the system could detect ECG signal accurately wit...

BACKGROUND ECG left ventricular hypertrophy (LVH) is a well-known predictor of cardiovascular disease. However, no prior study has characterized patterns of presence/absence of ECG LVH ("ECG LVH trajectories") across the adult lifespan in both sexes and across ethnicities. We examined: (1) correlates of ECG LVH trajectories; (2) the association of ECG LVH trajectories with incident coronary hea...

In order to gain insight into the biological significance of a collagenase inhibitor secreted by human skin fibroblasts, we examined various human connective tissues and body fluids for such a protein. The inhibitors found in these tissues were compared immunologically to skin fibroblast inhibitor by Ouchterlony analysis and by the development of a highly specific enzyme-linked immunosorbent as...

Homogeneous squash cotyledon reduced nicotinamide-adenine dinucleotide (NADH):nitrate reductase (NR) was isolated using blue-Sepharose and polyacrylamide gel electrophoresis. Gel slices containing NR were pulverized and injected into a previously unimmunized rabbit. This process was repeated weekly and antiserum to NR was obtained after four weeks. Analysis of the antiserum by Ouchterlony doubl...

Remote ECG monitoring systems are becoming commonplace medical devices for remote heart monitoring. In recent years, remote ECG monitoring systems have been applied in the monitoring of various kinds of heart diseases, and the quality of the transmission and reception of the ECG signals during remote process kept advancing. However, there remains accompanying challenges. This report focuses on ...

OBJECTIVE Precordial ECGs reveal significant intrasubject variability due to the inexact employment of the recommended V(1)-V(6) chest landmarks. Also, as per the Einthoven law, the six limb leads can be derived from leads 1 and 2. The purpose of this study was to evaluate whether the 12-lead ECG could be substituted by ECG sets with a limited number of leads. MATERIALS AND METHODS The perfor...

The study aimed to investigate the effects of FSH and eCG on the ovarian and follicular development, expression levels of FSHR and caspase-9 of ovaries in vivo. One hundred and five prepuberty mice were allocated into FSH-1, FSH-2, FSH-3, eCG-1, eCG-2, eCG-3 groups and control group (CG). Mice in FSH-1, FSH-2 and FSH-3 were intramuscularly injected with 5, 10 and 20 IU FSH twice (on day 0 and 4...

PURPOSE To determine the impact of retrospectively ECG-gated multi-detector row CT (MDCT) on three-dimensional (3D) visualization of the bronchial tree and virtual bronchoscopy (VB) as compared to non-ECG-gated data acquisition. MATERIALS AND METHODS Contrast-enhanced retrospectively ECG-gated and non-ECG-gated MDCT of the chest was performed in 25 consecutive patients referred for assessment...

17.6 Open Issues of ECG Based Biometrics Applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 323 17.6.1 Lack of Standardization of ECG Fiducial Points . . . . . . . . . . . . . . 323 17.6.2 Time Variant Nature of ECG . . . . . . . . . 324 17.6.3 Pertinence of Random Abnormality in ECG. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325 17.6.4 Longer Duration for ECGWa...