Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes
Introduction. Electrical stimulation is used in experimental human pain models. The aim was to develop a model that visualizes the distribution of electrical field in the esophagus close to ring and patch electrodes mounted on an esophageal catheter and to explain the obtained sensory responses. Met...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | Gastroenterology Research and Practice |
| Online Access: | http://dx.doi.org/10.1155/2011/562592 |
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| _version_ | 1832564829161783296 |
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| author | Christina Brock Romulus E. Lontis Flemming H. Lundager Peter Kunwald Asbjørn M. Drewes Hans Gregersen |
| author_facet | Christina Brock Romulus E. Lontis Flemming H. Lundager Peter Kunwald Asbjørn M. Drewes Hans Gregersen |
| author_sort | Christina Brock |
| collection | DOAJ |
| description | Introduction. Electrical stimulation is used in experimental human pain models. The aim was to develop a model that visualizes the distribution of electrical field in the esophagus close to ring and patch electrodes mounted on an esophageal catheter and to explain the obtained sensory responses. Methods. Electrical field distribution in esophageal layers (mucosa, muscle layers, and surrounding tissue) was computed using a finite element model based on a 3D model. Each layer was assigned different electrical properties. An electrical field exceeding 20 V/m was considered to activate the esophageal afferents. Results. The model output showed homogeneous and symmetrical field surrounding ring electrodes compared to a saddle-shaped field around patch electrodes. Increasing interelectrode distance enlarged the electrical field in muscle layer. Conclusion. Ring electrodes with 10 mm interelectrode distance seem optimal for future catheter designs. Though the model needs further validation, the results seem useful for electrode designs and understanding of electrical stimulation patterns. |
| format | Article |
| id | doaj-art-8297c87ca28a4abaa6593d554b241359 |
| institution | Kabale University |
| issn | 1687-6121 1687-630X |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Gastroenterology Research and Practice |
| spelling | doaj-art-8297c87ca28a4abaa6593d554b2413592025-02-03T01:10:10ZengWileyGastroenterology Research and Practice1687-61211687-630X2011-01-01201110.1155/2011/562592562592Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring ElectrodesChristina Brock0Romulus E. Lontis1Flemming H. Lundager2Peter Kunwald3Asbjørn M. Drewes4Hans Gregersen5Mech-Sense, Department of Gastroenterology, Aalborg Hospital, Aarhus University Hospital, Mølleparkvej 4, 9000 Aalborg, DenmarkDepartment of Health Science and Technology, Aalborg University, 9220 Aalborg, DenmarkMech-Sense, Department of Gastroenterology, Aalborg Hospital, Aarhus University Hospital, Mølleparkvej 4, 9000 Aalborg, DenmarkMech-Sense, Department of Gastroenterology, Aalborg Hospital, Aarhus University Hospital, Mølleparkvej 4, 9000 Aalborg, DenmarkMech-Sense, Department of Gastroenterology, Aalborg Hospital, Aarhus University Hospital, Mølleparkvej 4, 9000 Aalborg, DenmarkMech-Sense, Department of Gastroenterology, Aalborg Hospital, Aarhus University Hospital, Mølleparkvej 4, 9000 Aalborg, DenmarkIntroduction. Electrical stimulation is used in experimental human pain models. The aim was to develop a model that visualizes the distribution of electrical field in the esophagus close to ring and patch electrodes mounted on an esophageal catheter and to explain the obtained sensory responses. Methods. Electrical field distribution in esophageal layers (mucosa, muscle layers, and surrounding tissue) was computed using a finite element model based on a 3D model. Each layer was assigned different electrical properties. An electrical field exceeding 20 V/m was considered to activate the esophageal afferents. Results. The model output showed homogeneous and symmetrical field surrounding ring electrodes compared to a saddle-shaped field around patch electrodes. Increasing interelectrode distance enlarged the electrical field in muscle layer. Conclusion. Ring electrodes with 10 mm interelectrode distance seem optimal for future catheter designs. Though the model needs further validation, the results seem useful for electrode designs and understanding of electrical stimulation patterns.http://dx.doi.org/10.1155/2011/562592 |
| spellingShingle | Christina Brock Romulus E. Lontis Flemming H. Lundager Peter Kunwald Asbjørn M. Drewes Hans Gregersen Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes Gastroenterology Research and Practice |
| title | Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes |
| title_full | Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes |
| title_fullStr | Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes |
| title_full_unstemmed | Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes |
| title_short | Model for Electrical Field Distribution in the Human Esophagus during Stimulation with Patch and Ring Electrodes |
| title_sort | model for electrical field distribution in the human esophagus during stimulation with patch and ring electrodes |
| url | http://dx.doi.org/10.1155/2011/562592 |
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