Assessment of pacing lead curvature and strain with three dimensional reconstruction of biplane cineangiographic images in vivo

Harrigan, Timothy P.; Kirkeelde, Richard; Jalal, Sohall; Beveridge, T.; Montgomery, Baxter D.

doi:10.1016/s0735-1097(96)82289-3

Cited by 9 publications

(4 citation statements)

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“…For example, Harrigan et al [25] investigated the curvature and strain and provided assessment of bending deformation with 3D reconstruction of biplane cineangiographic images in vivo. According to the present study, however, it is found that bending alone does not adequately describe the loading and stress experienced in a pacing lead, and torsion loading can be a significant factor in many cases.…”

Section: Discussionmentioning

confidence: 99%

“…Methods of extracting useful information from medical images have been proposed in various bioengineering applications such as endocardial border reconstruction [23] and quantitative coronary angiography [24]. To assess the dynamic position and curvature of itnplanted pacing leads, Harrigan et al [25] presented techniques of a threedimensional (3D) reconstruction of biplane cineangiographic images in vivo. The assessment includes only a curvature of the lead without considering its twisting deformation.…”

Section: Introductionmentioning

confidence: 99%

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In Vivo Stress Analysis of a Pacing Lead From an Angiographic Sequence

Liu

Wang

Yang

et al. 2011

Journal of Biomechanical Engineering

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In this paper, a method is presented to analyze the mechanical stress distribution in a pacing lead based on a sequence of paired 2D angiographic images. The 3D positions and geometrical shapes of an implanted pacemaker lead throughout the cardiac cycle were generated using a previously validated 3D modeling technique. Based on the Frenet-Serret formulas, the kinematic property of the lead was derived and characterized. The distribution of curvature and twist angle per unit length in the pacing lead was calculated from a finite difference method, which enabled a rapid and effective computation of the mechanical stress in the pacing lead. The analytical solution of the helix deformation geometry was used to evaluate the accuracy of the proposed numerical method, and an excellent agreement in curvature, twist angle, and stresses was achieved. As demonstrated in the example, the proposed technique can be used to analyze the complex movement and deformation of the implanted pacing lead in vivo. The information can facilitate the future development of pacing leads.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

In Vivo Stress Analysis of a Pacing Lead From an Angiographic Sequence

Liu

Wang

Yang

et al. 2011

Journal of Biomechanical Engineering

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“…A very limited number of studies are available assessing intracardiac in vivo curvature of leads. 4 , 8 , 14 , 18…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Analysis of the In Vivo Motion of Implantable Cardioverter Defibrillator Leads

Szili-Török

Rump

Luther

et al. 2021

Cardiovasc Eng Tech

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Better understanding of the lead curvature, movement and their spatial distribution may be beneficial in developing lead testing methods, guiding implantations and improving life expectancy of implanted leads. Objective The aim of this two-phase study was to develop and test a novel biplane cine-fluoroscopy-based method to evaluate input parameters for bending stress in leads based on their in vivo 3D motion using precisely determined spatial distributions of lead curvatures. Potential tensile, compressive or torque forces were not subjects of this study. Methods A method to measure lead curvature and curvature evolution was initially tested in a phantom study. In the second phase using this model 51 patients with implanted ICD leads were included. A biplane cine-fluoroscopy recording of the intracardiac region of the lead was performed. The lead centerline and its motion were reconstructed in 3D and used to define lead curvature and curvature changes. The maximum absolute curvature Cmax during a cardiac cycle, the maximum curvature amplitude Camp and the maximum curvature Cmax@amp at the location of Camp were calculated. These parameters can be used to characterize fatigue stress in a lead under cyclical bending. Results The medians of Camp and Cmax@amp were 0.18 cm−1 and 0.42 cm−1, respectively. The median location of Cmax was in the atrium whereas the median location of Camp occurred close to where the transit through the tricuspid valve can be assumed. Increased curvatures were found for higher slack grades. Conclusion Our results suggest that reconstruction of 3D ICD lead motion is feasible using biplane cine-fluoroscopy. Lead curvatures can be computed with high accuracy and the results can be implemented to improve lead design and testing.

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“…To date, only Harrigan et al 14 have presented an overall technique for pacemaker lead assessment in vivo. Their 3D technique apparently makes use of the known imaging geometry as given by the imaging equipment and triangulation techniques.…”

Section: Introductionmentioning

confidence: 99%

Determination of 3D positions of pacemaker leads from biplane angiographic sequences

et al. 1997

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In vitro and in vivo analyses of stress on pacemaker leads and their components during the heart cycle have become especially important because of incidences of failure of some of these mechanical components. For stress analyses, the three-dimensional (3D) position, shape, and motion of the pacemaker leads must be known accurately at each time point during the cardiac cycle. We have developed a method for determination of the in vivo 3D positions of pacemaker leads during the entire heart cycle. Sequences of biplane images of patients with pacemakers were obtained at 30 frames/s for each projection. The sequences usually included at least two heart cycles. After patient imaging, biplane images of a calibration object were obtained from which the biplane imaging geometry was determined. The centerlines of the leads and unique, identifiable points on the attached electrodes were indicated manually for all acquired images. Temporal interpolation of the lead and electrode data was performed so that the temporal nonsynchronicity of the image acquisition was overcome. Epipolar lines, generated from the calculated geometry, were employed to identify corresponding points along the leads in the pairs of biplane images for each time point. The 3D positions of the lead and electrodes were calculated from the known geometry and from the identified corresponding points in the images. Using multiple image sets obtained with the calibration object at various orientations, the precision of the calculated rotation matrix and of the translation vector defining the imaging geometry was found to be approximately 0.7 degree and 1%, respectively. The 3D positions were reproducible to within 2 mm, with the error lying primarily along the axis between the focal spot and the imaging plane. Using data obtained by temporally downsampling to 15 frames/s, the interpolated data were found to lie within approximately 2 mm of the true position for most of the heart cycle. These results indicate that, with this technique, one can reliably determine pacemaker lead positions throughout the heart cycle, and thereby it will provide the basis for stress analysis on pacemaker leads.

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Assessment of pacing lead curvature and strain with three dimensional reconstruction of biplane cineangiographic images in vivo

Cited by 9 publications

References 0 publications

In Vivo Stress Analysis of a Pacing Lead From an Angiographic Sequence

In Vivo Stress Analysis of a Pacing Lead From an Angiographic Sequence

Three-Dimensional Analysis of the In Vivo Motion of Implantable Cardioverter Defibrillator Leads

Determination of 3D positions of pacemaker leads from biplane angiographic sequences

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