Validation of the Noncontact Mapping System in the Left Atrium During Permanent Atrial Fibrillation and Sinus Rhythm

Earley, Mark J.; Abrams, Dominic J.; Sporton, Simon; Schilling, Richard J.

doi:10.1016/j.jacc.2006.04.069

Cited by 62 publications

(86 citation statements)

References 15 publications

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“…It was also shown that correlation decreased with increasing distance between the endocardial node and the balloon [40,42]. However, these comparisons were limited on the correlation of the morphology of electrograms.…”

Section: Estimating Df Using Ncmmentioning

confidence: 99%

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

Salinet

Almeida

et al. 2017

Computer Methods and Programs in Biomedicine

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Section: Estimating Df Using Ncmmentioning

confidence: 99%

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

Salinet

Almeida

et al. 2017

Computer Methods and Programs in Biomedicine

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“…6,7,8 Our report demonstrates its utility and safety in the management of multiple cardiac arrhythmias, often leading to successful ablation after previous failure using other techniques. A variety of catheter and energy types were used including cryoablation and low energy DC.…”

Section: Discussionmentioning

confidence: 78%

“…7,10,11 Consequently, when mapping in large cardiac chambers it is important to position the equator of the MEA as close as possible to the area of interest-this may require conventional mapping before deploying the balloon, or repositioning and remapping.…”

Section: Specific Technical Pointsmentioning

confidence: 99%

Cardiac Arrhythmia Management using a Noncontact Mapping Multielectrode Array

Catanchin¹,

Liew²,

Behr³

et al. 2010

Clinical Cardiology

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Background:The multielectrode array (MEA) enables noncontact mapping of cardiac arrhythmias; our experience is reviewed and reported. Hypothesis: The MEA has a role as first line therapy in multiple arrhythmias. Methods: Retrospective and prospective analysis of all consecutive cases performed using the MEA over a 6 year period. Results: Electrophysiological study and catheter ablation, 46% under general anaesthesia, using radiofrequency (RF), cryothermal and low energy direct current (DC) was performed in 66 procedures on 31 females and 29 males, average age 50.2 yrs (19.3-81.6); 8 patients underwent multiple procedures. 24 patients (36%) had undergone past ablation for the same arrhythmia. A wide variety of arrhythmias from all chambers were treated, majority right atrial (56%) and right ventricular (29%). Procedural success was complete in 77.4% and partial/indeterminate in 11.3%, highest in right atrial tachycardia, right ventricular outflow tract ectopy and typical atrial flutter (79, 82 and 100%). RF energy was most commonly used (67%) and DC carried 100% success. Ablation was delivered at 'early activation' and 'breakout' in focal arrhythmias. In re-entrant circuits linear ablation transectingpath of activation extending to regions of functional/anatomic block was performed. Two of 7 complications were attributed to the MEA: groin haematomas. At mean 12.4 mo follow up 56% were arrhythmia free, 15% asymptomatic or minimally symptomatic and 12 patients had new arrhythmias. Conclusions: The MEA is effective, safe and suitable for first line therapy in multiple cardiac arrhythmias particularly in the right heart. Further study is warranted comparing it to other mapping techniques.

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“…The noncontact array balloon with 64 electrodes was placed in the left atrium transeptally, and electrograms were collected using inverse solution mathematics and interpolation in an inside-out fashion allowing the reconstruction of up to 3,600 simultaneous unipolar AEGs projected to the atrium's anatomical 3D representation 3D geometry of the atrium performed at the beginning of the EP procedure. The array was not moved after geometry creation to avoid distortion of the isopotential maps [12][13][14][15][16][17] and the distance between the centre of the balloon and the patient's endocardium wall did not exceed 4 cm (checked with fluoroscopy).…”

Section: Study Populationmentioning

confidence: 99%

Analysis of QRS-T subtraction in unipolar atrial fibrillation electrograms

Salinet

Madeiro

Cortez

et al. 2013

Med Biol Eng Comput

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Validation of the Noncontact Mapping System in the Left Atrium During Permanent Atrial Fibrillation and Sinus Rhythm

Abstract: Noncontact mapping can be performed in human LA; however, the accuracy of reconstructed electrograms is poor >40 mm from the center of the array, particularly during AF. Care must be taken interpreting isopotential maps if the entire endocardial surface of the LA is not close to the array.

Cited by 62 publications

References 15 publications

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

An interactive platform to guide catheter ablation in human persistent atrial fibrillation using dominant frequency, organization and phase mapping

Cardiac Arrhythmia Management using a Noncontact Mapping Multielectrode Array

Analysis of QRS-T subtraction in unipolar atrial fibrillation electrograms

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