نتایج جستجو برای: electrocardiograms

تعداد نتایج: 2910  

2001
N. J. Pizzi M. E. Alexander M. Ede R. L. Somorjai

Electrocardiogram monitoring, a routine practice when a patient presents a cardiovascular disturbance, is problematic during a magnetic resonance imaging session because the metallic leads, used to acquire the signal, act like antennae picking up noise interference from the magnet thereby distorting the electrocardiogram. A method is required to suppress this radio frequency noise as well as co...

Journal: :British heart journal 1973
H M Thomas M J Spicer W P Nelson

It has been previously proposed that a method of distinguishing sinus venosus atrial septal defects from ostium secundum atrial septal defects is a leftward axis deviation (less than +300) of the P waves on the electrocardiograms of patients with sinus venosus defects. The electrocardiograms of i5o patients with surgically corrected atrial septal defects were reviewed to test this proposition. ...

Journal: :Japanese Journal of Electrocardiology 1990

Journal: :Current Directions in Biomedical Engineering 2022

Abstract To overcome limitations of currently used blood pressure measurement devices in accuracy, continuity and comfort, we propose an approach for estimation from electrocardiogram (ECG) signals only. Thereby, statistical signal features are extracted the ECG which, eventually, serve as input to a random forest regression. The method is trained tested on MIMIC III waveform data with large ra...

Journal: :British heart journal 1940
J Nyboer J G Hamilton

A critical study of electrical events occurring in the posterior portions of the human heart has been made possible by the use of aesophageal leads in clinical electrocardiography (Cremer, 1906; Lieberson and Liberson, 1934; Luisada, 1935; Brown, 1936a, 1936b; Hamilton and Nyboer, 1938; Spiihler, 1938; Nyboer, 1939; Deglaude and Laubry, 1939). The cesophagus lies close to the posterior surface ...

Journal: :Journal of clinical pharmacology 2008
Nenad Sarapa Justin L Mortara Barry D Brown Lamberto Isola Fabio Badilini

The US Food and Drug Administration recommends submission of digital electrocardiograms in the standard HL7 XML format into the electrocardiogram warehouse to support preapproval review of new drug applications. The Food and Drug Administration scrutinizes electrocardiogram quality by viewing the annotated waveforms and scoring electrocardiogram quality by the warehouse algorithms. Part of the ...

Journal: :British Journal of General Practice 2016

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