The quality of ECG data acquisition, and diagnostic performance of a novel adhesive patch for ambulatory cardiac rhythm monitoring in arrhythmia detection

2019 ◽  
Vol 54 ◽  
pp. 28-35 ◽  
Author(s):  
M. Remzi Karaoğuz ◽  
Ece Yurtseven ◽  
Gamze Aslan ◽  
Bilgen Gülşen Deliormanlı ◽  
Ömer Adıgüzel ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Cardiac Rhythm ◽  
Diagnostic Performance ◽  
Arrhythmia Detection ◽  
Adhesive Patch ◽  
Rhythm Monitoring ◽  
Ecg Data

scholarly journals Detection of Paroxysmal Atrial Fibrillation in Stroke/Tia Patients

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Muhib Khan ◽  
Daniel J. Miller
Keyword(s):  
Atrial Fibrillation ◽  
Paroxysmal Atrial Fibrillation ◽  
Cardiac Rhythm ◽  
Genetic Factors ◽  
Arrhythmia Detection ◽  
Ischemic Attack ◽  
Event Definition ◽  
Possible Cause ◽  
Rhythm Monitoring

One-third of stroke and transient ischemic attack (TIA) are cryptogenic, and paroxysmal atrial fibrillation (PAF) has been suggested as a possible cause for these cryptogenic strokes. Multiple studies have recently evaluated long-term cardiac rhythm monitoring with good yield for PAF. The duration of monitoring varies between studies as well as the qualifying event definition. Moreover, the clinical significance of very brief atrial fibrillation events is unclear in the literature. This paper provides an overview of current advances in the detection of paroxysmal atrial fibrillation, the clinical and genetic factors predictive of arrhythmia detection, and the therapeutic dilemma concerning this approach.

scholarly journals Wearing Your Heart on Your Sleeve: the Future of Cardiac Rhythm Monitoring

2019 ◽  
Vol 21 (12) ◽  
Author(s):  
Mostafa A. Al-Alusi ◽  
Eric Ding ◽  
David D. McManus ◽  
Steven A. Lubitz
Keyword(s):  
Cardiac Rhythm ◽  
The Future ◽  
Rhythm Monitoring

Quality Monitoring System for Seismic While Drilling

2013 ◽  
Vol 318 ◽  
pp. 572-575
Author(s):  
Li Li Yu ◽  
Yu Hong Li ◽  
Ai Feng Wang
Keyword(s):  
Data Acquisition ◽  
Monitoring System ◽  
Signal Analysis ◽  
Quality Evaluation ◽  
Quality Monitoring ◽  
Quality Of Data ◽  
Whole Process ◽  
Engineering Parameters ◽  
Network Status

In this paper a quality monitoring system for seismic while drilling (SWD) that integrates the whole process of data acquisition was developed. The acquisition equipment, network status and signals of accelerometer and geophone were monitored real-time. With fast signal analysis and quality evaluation, the acquisition parameters and drilling engineering parameters can be adjusted timely. The application of the system can improve the quality of data acquisition and provide subsequent processing and interpretation with high qualified reliable data.

Computerized arrhythmia detection in large telemetered animals: Evaluation of canine, primate, and porcine ECG data

2011 ◽  
Vol 64 (1) ◽  
pp. e43
Author(s):  
Simon Authier ◽  
Florence Koeppel ◽  
Franco Rossi ◽  
David Labarre ◽  
Sebastien Fournier ◽  
...  
Keyword(s):  
Arrhythmia Detection ◽  
Ecg Data

Improvements in Data Acquisition for Propulsion Shaft Alignment

2015 ◽  
Author(s):  
W. David Joiner ◽  
Charles J. Cook
Keyword(s):  
Data Acquisition ◽  
Strain Gage ◽  
Strain Gages ◽  
Construction Process ◽  
Crucial Step ◽  
Ship Construction ◽  
Shaft Line ◽  
Load Cells ◽  
Shaft Alignment

Propulsion shaft alignment is a necessary and crucial step in the ship construction process, with manning and schedule constraints requiring accurate results as efficiently as possible. There are two methods for measuring the bearing loading along the shaft line: strain gages and load cells. The legacy method for using strain gages required a lot of man power and the legacy method for using load cells was dependent on the quality of machinist made available. Strain gages are the transducers of choice for measurement; however the data acquisition, especially for ships with long shafting systems, can require many strain gage positions and personnel to conduct tests. Load cells are used to validate the accuracy of the strain gage method and to calculate the shaft runout at each bearing location.

scholarly journals Development and evaluation of an automated system for testing current meters

2016 ◽  
Vol 20 (2) ◽  
pp. 181-187 ◽  
Author(s):  
Ezequiel Saretta ◽  
Antonio P. de Camargo ◽  
Tarlei A. Botrel ◽  
Marinaldo F. Pinto ◽  
Geancarlo T. Katsurayama ◽  
...  
Keyword(s):  
User Interface ◽  
Data Acquisition ◽  
Flow Velocity ◽  
Reference Value ◽  
Vertical Axis ◽  
Automated System ◽  
Step Motor ◽  
Simple Task ◽  
Rivers And Streams

ABSTRACT Current meters are equipment widely used for estimating flow velocity in rivers and streams. Periodic calibrations of current meters are important to ensure the quality of measurements, but the required testing facilities are complex and only available in a few institutions. However, advances in electronics and automation may contribute to developing simple and reliable calibration systems. Thus, this study aimed to develop an automated system for testing current meters, which consisted of a trapezoidal channel, a step motor, a tow car and a management system, composed of a supervisory application and microprocessed modules to control the motor and the data acquisition. Evaluations of the displacement velocity showed that it matched the reference value up to 1.85 m s-1 for a vertical-axis current meter and 2.3 m s-1 for a horizontal-axis one. The developed system showed reliability during tests, for both current meter movement and data acquisition. The management of the system based on the developed modules and the supervisory application improved its user interface, turning all the procedure into a simple task.

K-space filter effect in three-dimensional contrast MR angiography

1997 ◽  
Vol 38 (1) ◽  
pp. 173-175 ◽  
Author(s):  
K. Ito ◽  
J. Kato ◽  
S. Okada ◽  
T. Kumazaki
Keyword(s):  
Contrast Agent ◽  
Data Acquisition ◽  
Mr Angiography ◽  
Three Dimensional ◽  
Mr Images ◽  
Acquisition Period ◽  
Filter Effect ◽  
Flowing Material ◽  
Space Filter

Purpose: In three-dimensional (3-D) contrast MR angiography, temporal misregistration between the data acquisition period and the arrival of the contrast agent in the target vessels is thought to degrade the quality of the reconstructed images. The purpose of this study was to demonstrate and investigate this effect in phantom experiments. Material and Methods: MR images of a phantom tube were evaluated with flowing materials of water or Gd-DTPA solution by changing from water to Gd-DTPA solution halfway through the data acquisition period. Results: While no signal could be acquired with a stream of water in the tube, a clear signal was obtained with a flow of Gd-DTPA solution. Blurring and ghost artifacts surrounding the tube along the phase-encoding direction were observed when the flowing material was changed from water to Gd-DTPA solution halfway through the data acquisition period. Conclusion: K-space filter effect occurs during 3-D contrast MR angiography owing to the transient passage of the contrast agent, and this effect causes spatial artifacts in the reconstructed images.

Method of Controlling the Inversion Quality of NMR T2 Spectrum

2012 ◽  
Vol 562-564 ◽  
pp. 1209-1212
Author(s):  
Peng Ju Li ◽  
Huan Huan Liu ◽  
Jia Yin Wei
Keyword(s):  
Quality Control ◽  
Data Acquisition ◽  
Petroleum Exploration ◽  
Principal Diagonal ◽  
Numerical Experimentation ◽  
And Control ◽  
Nmr T2 Spectrum ◽  
Maximum Minimum ◽  
Spectrum Inversion

In order to improve the application effect of the NMR in Petroleum exploration and development, the quality of T2 spectrum inversion need to be controlled. Echo resolution matrix,T2 spectrum resolution matrix are deduced, the quality control index of T2 spectrum inversion is provided: the stretch coefficient, maximum, minimum, average and range of principal diagonal elements of resolution matrix. Calculating the inversion quality control index under different observation modes and choosing the observation mode of resolution matrix approximate to unit matrix for data acquisition can improve T2 spectrum inversion quality. Numerical experimentation indicate there is very good consistency between inversion quality and control index. Hence, it may direct the design before NMR data acquisition, control inversion quality of T2 spectrum

Sign in / Sign up

Export Citation Format

Share Document