Lead selection: old and new methods for locating the most electrocardiogram information

Donnelly, Mark; Finlay, Dewar; Nugent, Chris; Black, Norman D.

doi:10.1016/j.jelectrocard.2008.02.004

Cited by 23 publications

(11 citation statements)

References 23 publications

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“…Different sensor configurations performed equally well with respect to the condition of L , which is in agreement with Dössel [ 3 ], Nalbach and Dössel [ 52 ], Jazbinšek et al [ 50 , 51 ], and ECG-based studies [ 43 , 45 , 46 , 47 , 49 ]. However, generalizable patterns could be established by clustering a large set of individual optimized sensor configurations.…”

Section: Discussionsupporting

confidence: 84%

“…Dössel et al [ 48 ] using a finite element simulation showed that a numerical optimization of electrode positions maximizing the condition of the lead field matrix produces comparable electrode arrangements. The ECG investigations concur in the finding that sets of diagnostically optimal electrodes can be found, but that there is no unique optimal arrangement [ 49 ].…”

Section: Introductionmentioning

confidence: 95%

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Optimal Magnetic Sensor Vests for Cardiac Source Imaging

Lau

Petković

Haueisen

2016

Sensors

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Magnetocardiography (MCG) non-invasively provides functional information about the heart. New room-temperature magnetic field sensors, specifically magnetoresistive and optically pumped magnetometers, have reached sensitivities in the ultra-low range of cardiac fields while allowing for free placement around the human torso. Our aim is to optimize positions and orientations of such magnetic sensors in a vest-like arrangement for robust reconstruction of the electric current distributions in the heart. We optimized a set of 32 sensors on the surface of a torso model with respect to a 13-dipole cardiac source model under noise-free conditions. The reconstruction robustness was estimated by the condition of the lead field matrix. Optimization improved the condition of the lead field matrix by approximately two orders of magnitude compared to a regular array at the front of the torso. Optimized setups exhibited distributions of sensors over the whole torso with denser sampling above the heart at the front and back of the torso. Sensors close to the heart were arranged predominantly tangential to the body surface. The optimized sensor setup could facilitate the definition of a standard for sensor placement in MCG and the development of a wearable MCG vest for clinical diagnostics.

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Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 95%

Optimal Magnetic Sensor Vests for Cardiac Source Imaging

Lau

Petković

Haueisen

2016

Sensors

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“…BSPMs have been widely analyzed in order to locate the sites that offer the most electrocardiographic information. 2 BSPMs have also been used for studying new bipolar leads, which enhance P-wave magnitudes. 8 The main objective here was to study how a very closely lying bipolar electrode pair should be located on the chest in order to obtain a reliable and strong ECG signal for diagnostic purposes.…”

Section: Introductionmentioning

confidence: 99%

Best Electrode Locations for a Small Bipolar ECG Device: Signal Strength Analysis of Clinical Data

2008

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New miniaturized portable electrocardiogram (ECG) measuring devices may require small interelectrode distance. However, finding a suitable location for a tiny measurement device may prove tedious, as reducing interelectrode distance reduces signal strength. The objective of the study was to define the optimal location for a very closely located (5 cm) bipolar electrode pair. A total of 120 bipolar leads were analyzed from a body surface potential map (BSPM) data with 236 subjects with a normal ECG. The average and standard deviation (SD) of the QRS-complex and the P-wave amplitudes in each electrode location and for each subject were determined. The results showed that deviation in signal amplitude between different subjects is significant. However, judging from average values, the best orientation for a closely located bipolar electrode pair is diagonally on the chest. The best locations for QRS-complex and P-wave detection are around the chest electrodes of the standard precordial leads V2, V3, and V4, and above the chest electrodes of leads V1 and V2, respectively.

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“…17,18 In the following years, alternative configurations using 16-256 torso electrodes were proposed. [19][20][21][22][23][24] Nevertheless, BSPM has never been incorporated into daily clinical practice because of uncertainty about the clinical utility. In the mean time, much experience had already been gained with the interpretation of the 12-lead ECG and this configuration continues to be the standard of routine clinical practice today.…”

Section: Body Surface Potential Mappingmentioning

confidence: 99%

Noninvasive Imaging of Cardiac Excitation: Current Status and Future Perspective

Graaf

Bhagirath

Ramanna

et al. 2014

Noninvasive Electrocardiol

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Noninvasive imaging of cardiac excitation using body surface potential mapping (BSPM) data and inverse procedures is an emerging technique that enables estimation of myocardial depolarization and repolarization. Despite numerous reports on the possible advantages of this imaging technique, it has not yet advanced into daily clinical practice. This is mainly due to the time consuming nature of data acquisition and the complexity of the mathematics underlying the used inverse procedures. However, the popularity of this field of research has increased and noninvasive imaging of cardiac electrophysiology is considered a promising tool to complement conventional invasive electrophysiological studies. Furthermore, the use of appropriately designed electrode vests and more advanced computers has greatly reduced the procedural time. This review provides descriptive overview of the research performed thus far and the possible future directions. The general challenges in routine application of BSPM and inverse procedures are discussed. In addition, individual properties of the biophysical models underlying the inverse procedures are illustrated.

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Lead selection: old and new methods for locating the most electrocardiogram information

Cited by 23 publications

References 23 publications

Optimal Magnetic Sensor Vests for Cardiac Source Imaging

Optimal Magnetic Sensor Vests for Cardiac Source Imaging

Best Electrode Locations for a Small Bipolar ECG Device: Signal Strength Analysis of Clinical Data

Noninvasive Imaging of Cardiac Excitation: Current Status and Future Perspective

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