Recognition of the Epicardial Breakthrough on Body Surface Isopotential Maps : Influence of the Inter-electrode Distance on the Patterns Reflecting the Epicardial Breakthrough : CLINICAL APPLICATION OF BODY SURFACE MAPPING
スポンサーリンク
概要
- 論文の詳細を見る
The epicardial breakthrough can be recognized from the localized depression of the body surface potential, which is characterized by a localized bend of the equipotential lines or a second-minimum on isopotential maps. Recognition of epicardial breakthrough with isopotential maps enables us to diagnose location of the block site of the bundle branch blocks more precisely than by ECG or VCG. However, the optimum inter-electrode distance for detection of such a localized potential has not been determined. In the present study, influence of the inter-electrode distance on the characteristic patterns reflecting the epicardial breakthrough was studied on 16 healthy persons using 9×9 electrode arrays with inter-electrode distance of 1.25 cm, 5×5 with 2.5 cm, and 3×3 with 5 cm. Breakthrough was recognized in 15 out of 16 cases (94%) on maps recorded with electrode arrays with inter-electrode distance of 1.25 and 2.5 cm. However, detectability of the breakthrough was reduced to 10 out of 16 cases (63%) with electrode array having inter-electrode distance of 5 cm. In conclusion, it is preferable to use an electrode array with an inter-electrode distance of no more than 2.5 cm for the purpose of breakthrough recognition.
- 社団法人日本循環器学会の論文
- 1981-10-20
著者
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TOYAMA Junji
Division of Cardiology, Aichi Prefecture Cardiovascular and Respiratory Center
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Toyama Junji
Division Of Cardiology Aichi Prefecture Cardiovascular And Respiratory Center
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Tabata Osamu
Division Of Circulation And Respiration Research Institute Of Environmental Medicine Nagoya Universi
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Toyama Junji
Division Of Cardiology Aichi Prefectural Cardiovascular And Respiratory Center
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Toyama Junji
Division Of Circulation And Respiration Research Institute Of Environmental Medicine Nagoya Universi
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