Posterior Body Surface Potential Mapping Using Capacitive-Coupled Electrodes and Its Application
Journal of Korean Medical Science
;
: 1517-1523, 2012.
Article
Dans Anglais
| WPRIM
| ID: wpr-60502
ABSTRACT
Using 49 capacitive-coupled electrodes, mattress-type harness was developed to obtain posterior body surface potential map (P-BSPM) in dressed individuals. The aim of this study was to investigate how valuable information P-BSPM could provide, especially in discrimination of old myocardial infarction (OMI). P-BSPM of 59 individuals were analyzed; 23 normal control, 11 right bundle branch block (RBBB), 3 left bundle branch block (LBBB) and 19 OMI patients. Principal component analysis and linear hyper-plane approach were used to evaluate diagnostic performance. The axes of P-BSPM vector potential corresponded well with 12-lead electrocardiogram. During QRS, the end point of P-BSPM vector potential demonstrated characteristic clockwise rotation in RBBB, and counterclockwise rotation in LBBB patients. In OMI, initial negativity on P-BSPM during QRS was more frequently located at lower half, and also stronger in patients with inferior myocardial infarction (MI). The area under the receiver-operating characteristic curve of P-BSPM during QRS in diagnosing overall OMI, anterior MI, and inferior MI was 0.83 (95% confidence interval, 0.70-0.97), 0.71 (0.47-0.94), and 0.98 (0.94-1.0), respectively (P = 0.022 for anterior vs inferior MI groups). In conclusion, the novel P-BSPM provides detailed information for cardiac electrical dynamics and is applicable to diagnosing OMI, especially inferior myocardial infarction.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Bloc de branche
/
Courbe ROC
/
Cartographie du potentiel de surface corporelle
/
Aire sous la courbe
/
Analyse en composantes principales
/
Électrocardiographie
/
Électrodes
/
Infarctus du myocarde
Type d'étude:
Étude pronostique
Limites du sujet:
Adulte
/
Adulte très âgé
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Journal of Korean Medical Science
Année:
2012
Type:
Article
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