A Dual-Chamber, Thick-Walled Cardiac Phantom for Use in Cardiac Motion and Deformation Imaging by Ultrasound

Leśniak-Plewińska, Beata; Cygan, Szymon; Kałużyński, K.; D'hooge, Jan; Żmigrodzki, Jakub; Kowalik, Ewa; Kordybach, Maria; Kowalski, M.

doi:10.1016/j.ultrasmedbio.2010.04.008

Cited by 36 publications

(22 citation statements)

References 28 publications

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“…As an alternative to simulated data, 3D US strain algorithms can be validated on physical phantoms, where motion and deformations can be mechanically controlled [19]. In phantoms, ground truth deformation typically relies on sonomicrometry.…”

Section: A Validation Of 3d Us Strain Algorithmsmentioning

confidence: 99%

3D Strain Assessment in Ultrasound (Straus): A Synthetic Comparison of Five Tracking Methodologies

Craene

Marchesseau

Heyde

et al. 2013

IEEE Trans. Med. Imaging

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Section: A Validation Of 3d Us Strain Algorithmsmentioning

confidence: 99%

3D Strain Assessment in Ultrasound (Straus): A Synthetic Comparison of Five Tracking Methodologies

Craene

Marchesseau

Heyde

et al. 2013

IEEE Trans. Med. Imaging

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“…Then the mold was placed in a freezer at À25 AE 0.5 8C for 35 h and then thawed for approximately 40 h to the room temperature [12,23]. This process was initially introduced by Surry et al [23] and next applied by Langeland et al [10] and by Leśniak-Plewińska et al [11].…”

Section: Ultrasound Model Of the Left Ventriclementioning

confidence: 99%

“…The dual-chamber ventricular phantom was used for ultrasonic examination of the left ventricle strains during an in vitro experiment [11]. The authors focused on testing of the physiological LV strains by imitating more ellipsoidal shape of the ventricle and on the dependence of left ventricle functions and its ''interconnection'' with the right ventricle.…”

Section: Introductionmentioning

confidence: 99%

Strain examinations of the left ventricle phantom by ultrasound and multislices computed tomography imaging

Trawiński

Wójcik

Nowicki

et al. 2015

Biocybernetics and Biomedical Engineering

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“…While porcine models generally perform well for testing hemodynamics; unfortunately, this is not the case for the LV morphology. The trabeculae carneae as well as the papillary muscles need to be replicated more accurately than current existing heart phantoms allow (20)(21)(22)(23)(24), which shows the need for the use of an advanced additive manufacturing technique (25)(26)(27). In the human LV, the ultrasonic beam encounters complex reflection and refraction patterns at the intra-ventricular surface.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic sensor concept to fit a ventricular assist device cannula evaluated using geometrically accurate heart phantoms

et al. 2018

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Future left ventricular assist devices (LVADs) are expected to respond to the physiologic need of patients; however, they still lack reliable pressure or volume sensors for feedback control. In the clinic, echocardiography systems are routinely used to measure left ventricular (LV) volume. Until now, echocardiography in this form was never integrated in LVADs due to its computational complexity. The aim of this study was to demonstrate the applicability of a simplified ultrasonic sensor to fit an LVAD cannula and to show the achievable accuracy in vitro. Our approach requires only two ultrasonic transducers because we estimated the LV volume with the LV end-diastolic diameter commonly used in clinical assessments. In order to optimize the accuracy, we assessed the optimal design parameters considering over 50 orientations of the two ultrasonic transducers. A test bench was equipped with five talcuminfused silicone heart phantoms, in which the intra-ventricular surface replicated papillary muscles and trabeculae carnae. The end-diastolic LV filling volumes of the five heart phantoms ranged from 180 to 480 mL. This reference volume was altered by ±40 mL with a syringe pump. Based on the calibrated measurements acquired by the two ultrasonic transducers, the LV volume was estimated well. However, the accuracies obtained are strongly dependent on the choice of the design parameters.Orientations toward the septum perform better, as they interfere less with the papillary muscles. The optimized design is valid for all hearts. Considering this, the Bland-Altman analysis reports the LV volume accuracy as a bias of ±10% and limits of agreement of 0%-40% in all but the smallest heart. The simplicity of traditional echocardiography systems was reduced by two orders of magnitude in technical complexity, while achieving a comparable accuracy to 2D echocardiography requiring a calibration of absolute volume only. Hence, our approach exploits the established benefits of echocardiography and makes them applicable as an LV volume sensor for LVADs. K E Y W O R D Scardiac phantom, 3D printing, trabeculae, volume sensor, ultrasound, implantable, intra-cardiac echocardiography, ventricular assist device, hemodynamic monitoring 468 | DUAL et al.

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A Dual-Chamber, Thick-Walled Cardiac Phantom for Use in Cardiac Motion and Deformation Imaging by Ultrasound

Cited by 36 publications

References 28 publications

3D Strain Assessment in Ultrasound (Straus): A Synthetic Comparison of Five Tracking Methodologies

3D Strain Assessment in Ultrasound (Straus): A Synthetic Comparison of Five Tracking Methodologies

Strain examinations of the left ventricle phantom by ultrasound and multislices computed tomography imaging

Ultrasonic sensor concept to fit a ventricular assist device cannula evaluated using geometrically accurate heart phantoms

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