17th International Conference on Electrical Bioimpedance (eBook)

Preface 6
Committees 8
Conference Chair 8
International Advisory Committee 8
Organizing Committee 9
Reviewers List 9
17th International Conference on Electrical Bioimpedance ICEBI, June 09–14, 2019, Joinville, Brazil 10
Organizers 10
In Collaboration with 10
Sponsored by 10
Minicourse Abstracts 12
Low-Cost Applications of BIA, EIS and EIT 13
Fast Impedance Spectroscopy UsingMinimalistic Hardware 14
Basics of Electrical Impedancein Human Medicine 16
Plenary Speakers Abstracts 17
Miniaturized Organs on a Chipand Bioimpedance 18
Fast Impedance Spectroscopy UsingMinimalistic Hardware 19
Modeling and Signal Processing in ImpedanceSpectroscopy: An Overview 21
Some Electrical Properties of Human Skin 23
Electrical Impedance Imaging:from Bench to Bedside 25
Detection of Gram-Positive and Gram-NegativeBacterium by Electrical Bioimpedance 26
Contents 27
Bioinstrumentation 31
Design and Integration of Electrical Bio-Impedance Sensing in a Bipolar Forceps for Soft Tissue Identification: A Feasibility Study 32
1 Introduction 32
2 Methods 33
2.1 EBI Sensing Modeling 33
2.2 FE Simulation of EBI Sensing with a Bipolar Forceps 34
2.3 Experimental Evaluation with Ex-Vivo Porcine Tissues 36
3 Results 37
4 Discussions 37
5 Conclusion 38
References 39
Influence of Measurement Pattern on RAW-data in Electrical Impedance Tomography 40
1 Introduction 40
2 Materials and Methods 41
2.1 Sensitivity of a Volume Conductor 41
2.2 Measurement Patterns 41
2.3 Measurement Hardware 43
2.4 Water Tank Measurement 43
3 Evaluation of Water Tank Measurement 44
4 Discussion and Conclusion 46
References 46
Hardware Setup for Tetrapolar Bioimpedance Spectroscopy in Bandages 47
1 Introduction 47
2 Methods 48
3 Results 50
3.1 Pressure Evaluation 50
3.2 BIS Evaluation 51
4 Discussion and Conclusion 52
References 53
Selection of Cole Model Bio-Impedance Parameters for the Estimation of the Ageing Evolution of Apples 54
1 Introduction 54
2 Materials and Methods 55
2.1 Bio-Impedance Measurement 55
2.2 Model Fitting 56
2.3 Software and Data Analysis 57
3 Results and Discussion 57
3.1 Model Fitting 57
3.2 Electrical Parameters Analysis 58
4 Conclusions 60
References 61
Biosensor Based on Carbon Nanocomposites for Detecting Glucose Concentration in Water 62
Abstract 62
1 Introduction 62
2 Materials and Methods 63
2.1 Electrode 63
2.2 Impedance Measurements 63
3 Results 64
4 Discussion 64
5 Conclusion 65
Acknowledgment 65
References 65
Bioimpedance Measurements on Human Neural Stem Cells as a Benchmark for the Development of Smart Mobile Biomedical Applications 67
Abstract 67
1 Introduction 68
2 Materials and Methods 69
2.1 Development Methodology and Contextual Framework 69
2.2 Analog and Digital Design 69
2.3 Embedded Application 70
2.4 Cell Culture of hVM1 71
2.5 Carbon Electrode Chips 71
2.6 Electrical Impedance Spectroscopy 72
3 Results and Discussion 73
3.1 Characterization of Cell Proliferation by Electrical Impedance Spectroscopy (EIS) 73
4 Conclusions 74
Conflict of Interest 75
References 75
Bioimpedance Theory and Modelling 77
Numerical Simulation of Various Electrode Configurations in Impedance Cardiography to Identify Aortic Dissection 78
Abstract 78
1 Introduction 78
2 Methods 79
2.1 Simulation Model 79
3 Results 80
4 Discussion and Conclusion 81
Acknowledgment 81
References 81
Numerical Simulation of Impedance Cardiogram Changes in Case of Chronic Aortic Dissection 82
Abstract 82
1 Introduction 82
2 Method 82
3 Simulation Model 83
4 Results 84
5 Conclusion 85
Acknowledgment 85
References 85
Analysis of Silicone Additives to Model the Dielectric Properties of Heart Tissue 87
1 Introduction 87
2 Methods 88
2.1 Silicone Samples 88
2.2 Simulation and Analysis 89
3 Results 90
4 Conclusion and Discussion 92
References 93
A Short Review of Membrane Models for Cells Electroporation 94
Abstract 94
1 Introduction 94
2 Electroporation Models 96
2.1 Kinetics Models 96
2.2 Asymptotic Model 97
2.3 A Theoretical Study of a Single-Cell Electroporation in a Microchannel 98
3 Discussion 99
4 Conclusions 99
Conflict of Interest 99
References 100
Body Composition 102
Data Views Technology of Bioimpedance Vector Analysis of Human Body Composition 103
Abstract 103
1 Introduction 104
2 Materials and Methods 105
3 Results and Discussion 106
4 Conclusion 109
Conflict of Interest 109
References 109
Analysis of Electrical Bioimpedance for the Diagnosis of Sarcopenia and Estimation of Its Prevalence 110
Abstract 110
1 Introduction 110
2 Methodology 111
2.1 Participants 111
2.2 Recruitment 111
2.3 Definition of Sarcopenia and Its Spectrum 111
2.4 Sociodemographic Characteristics 112
2.5 Anthropometric Parameters 112
2.6 Skeletal Muscle Mass Index (SMI) 112
2.7 Physical Strength 112
2.8 Physical Performance 112
2.9 Statistical Analyses 112
2.10 Statement of Human and Animal Rights and Statement of Informed Consent 113
3 Results 113
3.1 Sociodemographic Characteristics 113
3.2 Anthropometric Parameters 113
3.3 Skeletal Muscle Mass Index 113
3.4 Physical Strength 113
3.5 Physical Performance 113
3.6 Sarcopenia Prevalence 113
4 Discussion 115
5 Conclusion 115
Conflict of Interest 115
Sarcopenia in Patients with Chronic Obstructive Pulmonary Disease and Evaluation of Raw Bioelectrical Impedance Analysis Data 118
Abstract 118
1 Introduction 118
2 Methodology 119
2.1 Lung Function 119
2.2 Body Composition 120
2.3 Functional Capacity 120
2.4 Statistical Analysis 120
3 Results 121
4 Discussion 122
5 Conclusion 123
Conflict of Interest 123
Skeletal Muscle Index Using Bioelectrical Impedance for Diagnosis of Sarcopenia in Two Colombian Studies 125
Abstract 125
1 Introduction 125
2 Materials and Methods 126
2.1 Participants 126
2.2 Anthropometric Measurements 126
2.3 BIA Measurements 126
2.4 Skeletal Mass Estimation (SMI) 127
2.5 Handgrip Strength 127
2.6 Statistical Methods 127
3 Results 127
4 Discussion and Conclusion 128
Conflict of Interest 128
References 128
Clinical Applications on Bioimpedance 130
Bioimpedance Measurement to Evaluate Swallowing in a Patient with Amyotrophic Lateral Sclerosis 131
Abstract 131
1 Introduction 131
2 Materials and Methods 132
3 Results 133
4 Discussions 134
5 Conclusions 135
Conflict of Interest 135
References 135
Three Electrode Arrangements for the Use of Contralateral Body Segments as Controls for Electrical Bio-Impedance Measurements in Three Medical Conditions 137
Abstract 137
1 Introduction 137
2 Methods 138
2.1 Subject 138
2.2 Equipment 138
2.3 Electrodes and Electrode Arrangements 139
2.4 Statistics 141
3 Results 141
3.1 Discussion 142
4 Conclusions 142
Conflict of Interest 142
References 143
Luminal Electrical Resistivity at 50 kHz of the Pig Large Intestinal Wall 144
Abstract 144
1 Introduction 144
2 Methods 145
2.1 Samples 145
2.2 Equipment 145
2.3 Technique 146
2.4 Statistics 146
3 Results 147
4 Discussion 148
5 Conclusions 149
Conflict of Interest 149
References 150
Evaluating the Effects of Cold Storage on Vascular Grafts Using Bioimpedance Measurement Techniques 151
Abstract 151
1 Introduction 151
2 Materials and Methods 152
3 Results 153
4 Discussion 154
5 Conclusion 155
Conflict of Interest 155
References 156
Tissue Impedance Spectroscopy to Guide Resection of Brain Tumours 157
Abstract 157
1 Introduction 157
2 Materials and Methods 158
3 Results 159
4 Discussion 160
5 Conclusion 161
References 161
Electrical Impedance Spectroscopy 163
Relationships Between Bioimpedance Variables and Gene Expression in Lactuca Sativa Exposed to Cold Weather 164
Abstract 164
1 Introduction 165
2 Materials and Methods 165
3 Results 166
4 Discussion and Conclusion 167
References 167
Effect of Heating on Dielectric Properties of Hungarian Acacia Honeys 169
Abstract 169
1 Introduction 169
2 Materials and Methods 170
2.1 Materials 170
2.2 Methods 170
3 Results 171
4 Discussion 174
5 Conclusion 175
Conflict of Interest 175
References 175
Impedance Measurements Sensitive to Complementary DNA Concentrations 177
Abstract 177
1 Introduction 177
2 Methodology 178
2.1 Experimental Design 178
2.2 cDNA Amplification of the 16S Ribosomal Subunit 178
2.3 Impedance Measurements 178
3 Results 179
4 Discussion and Conclusion 180
Conflict of Interest 180
References 180
Monitoring Lactobacillus Bulgaricus Growth in Yoghurt by Electrical Impedance 181
Abstract 181
1 Introduction 181
2 Materials and Methods 182
2.1 Sample Preparation 182
2.2 Cell Counting 183
2.3 Electrical Impedance 183
2.4 Statistical Evaluation 183
3 Results 183
3.1 Results of the Microbiological Cell Count Determination During 12 h 183
3.2 Results of Electrical Impedance Measurement 184
3.3 Results of Electrical Impedance Based Cell Count Prediction by PLSR Regression 185
4 Discussion 186
5 Conclusion 187
Conflict of Interest 187
References 187
Electrical Impedance Tomography 189
Source Consistency Frequency Difference Electrical Impedance Tomography (sc-fdEIT) 190
1 Introduction 190
2 Methods 191
3 Results 193
References 193
A Measure of Prior Information of a Pathology in an EIT Anatomical Atlas 194
1 Introduction 194
2 Methodology 195
2.1 Prior Based on Samples of CT Scans and in vivo Conductivity Measurements 195
2.2 Numerical Phantom 196
2.3 Inverse Problem 197
2.4 Similarity Index 198
3 Results 199
4 Discussion 199
5 Conclusion 201
References 201
Functional Segmentation for Electrical Impedance Tomography May Bias the Estimated Center of Ventilation 202
Abstract 202
1 Introduction 202
2 Methodology 203
3 Results 204
4 Discussion 205
5 Conclusion 205
Acknowledgements 205
References 205
Preliminary Results of a Clinical EIM System 207
Abstract 207
1 Introduction 207
2 Methods 208
3 Results 208
4 Discussions 210
4.1 Single-Frequency Form SFI Tomography Results 210
4.2 Multi-frequency Tissue/Cell Tomography RFI and DFI Results 210
5 Conclusion 210
References 211
Non-linear Bioimpedance Phenomena 212
Computational Study of Parameters of Needle Electrodes for Electrochemotherapy 213
Abstract 213
1 Introduction 213
2 Materials and Methods 214
3 Results 216
4 Discussion 218
5 Conclusions 219
Conflict of Interest 219
References 219
Other Bioimpedance Application 221
Bone Fracture Detection by Electrical Bioimpedance: Measurements in Ex-Vivo Mammalian Femur 222
Abstract 222
1 Introduction 222
2 Materials and Methods 223
2.1 Phantom Construction 223
2.2 Measurements 223
3 Results 224
4 Conclusions and Study Limitations 225
References 225
Bioimpedance Technology for Assessing Blood Filling Redistribution in Human Body Regions During Rotation on Short Radius Centrifuge 227
Abstract 227
1 Introduction 228
2 Materials and Methods 229
3 Results and Their Discussion 230
4 Conclusions 233
Conflict of Interest 233
References 233
Differences in the Electrical Impedance Spectroscopy Variables Between Right and Left Forearms in Healthy People: A Non Invasive Method to Easy Monitoring Structural Changes in Human Limbs? 235
Abstract 235
1 Introduction 236
2 Materials and Methods 236
3 Results 237
4 Discussion and Conclusion 238
References 238
Author Index 240