Intracardiac impedance as a method for ventricular volume monitoring – Investigation by a finite-element model and clinical data

Lippert, M.; Berdyshev, Sergey; Czygan, Gerald; Bocchiardo, Mario; Hensel, Bernhard

doi:10.1088/1742-6596/224/1/012095

Cited by 2 publications

(1 citation statement)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Particularly patients with implanted cardioverter-defibrillators (ICD) can profit from continuous capture of vital parameters by implanted sensors [2], [3], [4]. In recent years, intracardiac impedance (ICI) has been introduced as an indicator of heart failure status [5], [6]. It denotes a quadrupolar impedance measurement with current injection between tip and shock coil of the right ventricular (RV) lead and voltage measurement between tip and ring of the left ventricular (LV) lead.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Movement of ICD Leads During Cardiac Contraction as Determinant of Intracardiac Impedance

Kirchner¹,

Arnold²,

Fischer³

2021

Preprint

View full text Add to dashboard Cite

Intracardiac impedance (ICI) has been proposed as an indicator of cardiac status in heart failure patients. We introduce a biophysical model of the measurement setup and apply it to the movement of ICD leads reconstructed from clinical-routine X-ray recordings in a study population of 12 patients. Tilting of the right ventricular lead is found to be a major determinant of ICI changes during cardiac contraction with a mean contribution of 42±23%. The relative position between right and left ventricular lead is the second major contributor (40±22%). However, the contributions of the components of movement strongly differ between the patients. The proposed method provides means for a better interpretation of ICI measurements and for an improvement of its performance for monitoring heart failure status.<br>

show abstract

Section: Introductionmentioning

confidence: 99%

Analysis of the Movement of ICD Leads During Cardiac Contraction as Determinant of Intracardiac Impedance

Kirchner¹,

Arnold²,

Fischer³

2021

Preprint

View full text Add to dashboard Cite

show abstract

Analysis of the Movement of ICD Leads During Cardiac Contraction as Determinant of Intracardiac Impedance

Kirchner

Arnold

Fischer

2018

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC)

View full text Add to dashboard Cite

Intracardiac impedance (ICI) has been proposed as an indicator of cardiac status in heart failure patients. We introduce a biophysical model of the measurement setup and apply it to the movement of ICD leads reconstructed from clinical-routine X-ray recordings in a study population of 12 patients. Tilting of the right ventricular lead is found to be a major determinant of ICI changes during cardiac contraction with a mean contribution of 42±23 %. The relative position between right and left ventricular lead is the second major contributor (40±22 %). However, the contributions of the components of movement strongly differ between the patients. The proposed method provides means for a better interpretation of ICI measurements and for an improvement of its performance for monitoring heart failure status.

show abstract

Intracardiac impedance as a method for ventricular volume monitoring – Investigation by a finite-element model and clinical data

Cited by 2 publications

References 1 publication

Analysis of the Movement of ICD Leads During Cardiac Contraction as Determinant of Intracardiac Impedance

Analysis of the Movement of ICD Leads During Cardiac Contraction as Determinant of Intracardiac Impedance

Analysis of the Movement of ICD Leads During Cardiac Contraction as Determinant of Intracardiac Impedance

Contact Info

Product

Resources

About