Localization of accessory pathways in Wolff-Parkinson-White syndrome by high-resolution magnetocardiographic mapping

Mäkijärvi, Markku; Nenonen, Jukka; Leiniö, M.; Montonen, Juha; Toivonen, Lauri; Nieminen, Markku S.; Katila, T.; Siltanen, P

doi:10.1016/0022-0736(92)90118-j

Cited by 25 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, electrode arrays used for ECG mapping may be difficult to apply on children whereas corresponding MCG measurements with a multichannel system are quicker and thus more feasible. A more extensive discussion of the advantages and limitations of the MCG can be found elsewhere [4,5,6,9].…”

Section: Discussionmentioning

confidence: 99%

“…The measurement arrangement is shown in Figure 1 were filtered to retain only the frequency band 0.1-250.0 Hz and digitized using a sampling rate of 1000 Hz. The digital signals were selectively averaged with a cross-correlation technique [4]. For the MCG recordings, the estimated centerpoint of the sensor system was marked on the chest of the patient.…”

Section: Case Reportmentioning

confidence: 99%

See 1 more Smart Citation

Magnetocardiographic localization of ventricular pre-excitation in a child with a congenital heart defect

Nenonen¹,

Rovamo

Toivonen

et al. 1995

Pediatr Cardiol

View full text Add to dashboard Cite

Magnetocardiographic mapping was performed on a 2-year-old boy who suffered from the Wolff-Parkinson-White syndrome in association with a complex congenital heart defect. The pre-excitation site was determined noninvasively from the measured cardiac magnetic fields. The location was in the same anatomic region as found by intraoperative epicardial mapping. This result shows that magnetocardiography can be helpful for determining an accessory pathway also in patients with grossly abnormal cardiac anatomy.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Case Reportmentioning

confidence: 99%

Magnetocardiographic localization of ventricular pre-excitation in a child with a congenital heart defect

Nenonen¹,

Rovamo

Toivonen

et al. 1995

Pediatr Cardiol

View full text Add to dashboard Cite

show abstract

“…MCG has proven accurate in localization of accessory pathways causing pre-excitation in Wolff-Parkinson-White syndrome [64], as well as in localization of the tachycardia points of origin [65] and premature ventricular ectopic complexes [66]. MCG have been superior to signal-averaged ECG in indicating a propensity toward life-threatening arrhythmias and magnetocardiographic intra-QRS fragmentation [67] and QT dispersion have identified post-MI patients prone to ventricular arrhythmias [68], the former being independent of the extent of LV dysfunction.…”

Section: Mcg Studies At Rhythm Disordersmentioning

confidence: 99%

Current Status and Future of Cardiac Mapping in Atrial Fibrillation

Kim¹,

Ahn²

2012

Atrial Fibrillation - Basic Research and Clinical Applications

View full text Add to dashboard Cite

“…However, in 1998, using the Helsinki multichannel system with an acceptable signal-to-noise ratio, Fenici et al demonstrated that MCG is an effective clinical tool for non-invasive threedimensional electro-anatomical imaging [41]. Accurate localization of the accessory pathway has been successfully performed in patients with Wolf-ParkinsonWhite (WPW) syndrome [42][43][44][45][46]. In these studies the accuracy of the non-invasive MCG localization of arrhythmogenic substrates has been evaluated by comparison with the results of conventional invasive catheter mapping.…”

Section: Rozkład Prądów Nasierdziowych U Pacjenta Z Ciasnym Zwężenimentioning

confidence: 99%

Special article Magnetocardiography in clinical cardiology. Status quo and future applications

Leithäuser¹,

Jung²,

Park³

2011

pwki

View full text Add to dashboard Cite

215Magnetocardiography in clinical cardiology. Status quo and future applications Magnetokardiografia w kardiologii klinicznej. Stan obecny i przyszłe zastosowania B Bo or ri is s L Le ei it th hä äu us se er r 1 1 , , F Fr ri ie ed dr ri ic ch h J Ju un ng g 2 2 , , J Ja ai i--W Wu un n P Pa ar rk k Special article/Artykuł specjalny A b s t r a c tMagnetocardiography (MCG) is a non-contact, non-invasive technique for the assessment of electromagnetic activity of the human heart. Theoretical considerations and comparative studies indicate different information content between MCG and electrocardiography (ECG). Although many questions about cardiac pathophysiology and electrophysiology can be answered by MCG studies, measurement of biomagnetism is still only marginally recognized as a valuable tool. Although MCG instrumentation (SQUIDs, MSR) and operation (liquid helium) are expensive and not available at the bedside, the gain of information drawn from the cardiac magnetic field is worth the effort. The MCG has superior sensitivity for ischaemic myocardium both at rest and under stress. Therefore, it may change one's ideas of decision making about invasive procedures. Compared to scintigraphy, which is a cumbersome method with the need of radioactivity exposure to the patient, MCG is as easy as bicycle ergometry but with higher sensitivity. In terms of risk stratification for sudden cardiac death, it seems to be possible that MCG in the future will provide additional information as to which patient will not benefit from prophylactic defibrillator implantation. However, appropriate clinical studies are lacking. Most interestingly, MCG appears to be practical and informative in the diagnosis of cardiac arrhythmias, and has sufficient spatial accuracy necessary for clinical purposes. It seems realistic that MCG-based localization of arrhythmogenic spots may guide the operator's ablation catheter, e.g. in patients with relapsing AF after a first successful ablation procedure. There is enough room for fantasy which question in clinical cardiology remains to be answered by MCG. K Ke ey y w wo or rd ds s: : magnetocardiography, coronary heart disease, ischaemia, risk stratification, arrhythmia, atrial fibrillation S t r e s z c z e n i e Magnetokardiografia (ang. magnetocardiography, MCG) jest bezkontaktową, nieinwazyjną metodą pomiaru pola magnetycznego ludzkiego serca. Założenia teoretyczne oraz badania porównawcze wskazują, że MCG i EKG dostarczają odmiennych informacji. Pomiar pola magnetycznego jest nadal w niewielkim stopniu uważany za wartościowe narzędzie, pomimo że badania MCG mogą udzielić odpowiedzi na wiele pytań dotyczących patofizjologii serca i elektrofizjologii. Chociaż oprzyrządowanie konieczne do MCG (SQUIDs, MSR) i jego obsłu-ga (ciekły hel) są drogie i nie są dostępne jako badania przyłóżkowe, to informacja uzyskiwana z badań pola magnetycznego serca jest warta tych wysiłków. Magnetokardiografia charakteryzuje się większą czułością w wykrywaniu niedokrwienia miokardium zarówno w warunkach spoczynkow...

show abstract

Localization of accessory pathways in Wolff-Parkinson-White syndrome by high-resolution magnetocardiographic mapping

Cited by 25 publications

References 24 publications

Magnetocardiographic localization of ventricular pre-excitation in a child with a congenital heart defect

Magnetocardiographic localization of ventricular pre-excitation in a child with a congenital heart defect

Current Status and Future of Cardiac Mapping in Atrial Fibrillation

Special article Magnetocardiography in clinical cardiology. Status quo and future applications

Contact Info

Product

Resources

About