Advertise here Publish your press releases here Sponsor BioPortfolio
Follow us on Twitter Sign up for daily news and research emails Contributors wanted

A review of electrocardiogram filtering.

19:29 EDT 18th April 2014 | BioPortfolio

Summary of "A review of electrocardiogram filtering."

Analog filtering and digital signal processing algorithms in the preprocessing modules of an electrocardiographic device play a pivotal role in providing high-quality electrocardiogram (ECG) signals for analysis, interpretation, and presentation (display, printout, and storage). In this article, issues relating to inaccuracy of ECG preprocessing filters are investigated in the context of facilitating efficient ECG interpretation and diagnosis. The discussion covers 4 specific ECG preprocessing applications: anti-aliasing and upper-frequency cutoff, baseline wander suppression and lower-frequency cutoff, line frequency rejection, and muscle artifact reduction. Issues discussed include linear phase, aliasing, distortion, ringing, and attenuation of desired ECG signals. Due to the overlapping power spectrum of signal and noise in acquired ECG data, frequency selective filters must seek a delicate balance between noise removal and deformation of the desired signal. Most importantly, the filtering output should not adversely impact subsequent diagnosis and interpretation. Based on these discussions, several suggestions are made to improve and update existing ECG data preprocessing standards and guidelines.


Journal Details

This article was published in the following journal.

Name: Journal of electrocardiology
ISSN: 1532-8430


PubMed Articles [8019 Associated PubMed Articles listed on BioPortfolio]

Patient-Reported Difference following Implantation of a Blue Light-Filtering Aspheric Intraocular Lens and a UV-Filtering Aspheric Intraocular Lens.

We report on a series of 6 patients who experienced yellow vision after uncomplicated cataract surgery in their second eye. In the first eye, an aspheric blue-light filtering intraocular lens (IOL) wa...

When to go epicardially during ventricular tachycardia ablation? Role of surface electrocardiogram.

Early recognition of ventricular tachycardias (VTs) with epicardial circuits is crucial. Surface electrocardiogram (ECG) suggesting an epicardial origin could guide ablation procedures and increase su...

Visual selective attention is equally functional for individuals with low and high working memory capacity: Evidence from accuracy and eye movements.

Selective attention and working memory capacity (WMC) are related constructs, but debate about the manner in which they are related remains active. One elegant explanation of variance in WMC is that t...

Intercommunication Between Prefrontal and Posterior Brain Regions for Protecting Visual Working Memory From Distractor Interference.

Because visual working memory has a very restricted capacity, good filtering mechanisms are essential for its successful functioning. A neuronal signal emitted by the prefrontal cortex is considered t...

Effects of electrocardiogram gating on CT pulmonary angiography image quality.

Pulmonary embolism (PE) is the third most common cause of death from cardiovascular disease. Computed-tomographic pulmonary angiography (CTPA) is an accurate and safe test for diagnosing PE. The aim o...

Clinical Trials [615 Associated Clinical Trials listed on BioPortfolio]

The Effect of a Blue Light Filtering IOL

To compare the effect on blood retinal barrier disruption 3 and 12 months after implantation of either a blue light filtering intraocular lens(blue-filtering IOL) or an ultraviolet light f...

Fluorouracil Filtering Surgery Study (FFSS)

To determine whether postoperative subconjunctival injections of 5-fluorouracil (5-FU) increase the success rate of filtering surgery in patients at high risk for failure after standard gl...

Results of Ocular Compression and Suture Release in Trabeculectomy and Combined Surgery

The use of ocular compression and suture release have helped to improve the safety and decrease the risks of glaucoma filtering surgery. This study looks at the decrease in intraocular pr...

Do Blue-Blocking Lenses Block Blue Colour From Our Lives?

To measure colour vision in patients with a blue light filtering lens implant in one eye and non-tinted implant in the other eye (and compared this group with a control group with bilatera...

Light Filters in IOLs and Its Influence on Colour and Contrast Vision.

Visible-light-filtering IOLs are implanted increasingly often in cataract surgery. Several studies examined the effect of light-filters on contrast and colour vision. However, the study ou...

Medical and Biotech [MESH] Definitions

Size, shape, and length of ECG parts, including waves, intervals, duration, and segments. Some heart-related conditions can be characterized by specific set of electrocardiogram patterns.

Review of the medical necessity of hospital or other health facility admissions, upon or within a short time following an admission, and periodic review of services provided during the course of treatment.

Formal programs for assessing drug prescription against some standard. Drug utilization review may consider clinical appropriateness, cost effectiveness, and, in some cases, outcomes. Review is usually retrospective, but some analysis may be done before drugs are dispensed (as in computer systems which advise physicians when prescriptions are entered). Drug utilization review is mandated for Medicaid programs beginning in 1993.

Organizations representing designated geographic areas which have contracts under the PRO program to review the medical necessity, appropriateness, quality, and cost-effectiveness of care received by Medicare beneficiaries. Peer Review Improvement Act, PL 97-248, 1982.

Published materials which provide an examination of recent or current literature. Review articles can cover a wide range of subject matter at various levels of completeness and comprehensiveness based on analyses of literature that may include research findings. The review may reflect the state of the art. It also includes reviews as a literary form.

Search BioPortfolio: