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A dynamic neonatal heart phantom for ultrafast color Doppler echocardiography evaluation
Author(s): Nora Boone; James C. Lacefield; John Moore; Olivia Ginty; Xin Yue Wang; Tamie L. Poepping; Daniel Bainbridge; Terry Peters
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Paper Abstract

New high-frame-rate ultrasound imaging techniques are being developed to image tissue motion and blood flow with high sensitivity and at high temporal resolution. An emerging application for these new techniques is diagnosing inutero and neonatal cardiac disease. We have developed a morphologically and hemodynamically accurate neonatal heart phantom to provide a high-fidelity physical model for laboratory testing of ultrafast color Doppler echocardiography methods. This paper summarizes the design and functionality of the simulator by measuring pressure gradients across the mitral valve at a physiologic heart-rate range and stroke volume and by evaluating valve function using 2D transesophageal echocardiography (TEE) and Doppler images. The phantom achieved normal physiological pressures across the mitral valve ranging from 42 to 87 mmHg in systole and 2.4 to 4.2 mmHg in diastole at heartrates of 100, 125 and 150 beats per minute (bpm), with a realistic neonatal stroke volume of 7 ml. 2D ultrasound images were obtained at 60 bpm.

Paper Details

Date Published: 8 March 2019
PDF: 6 pages
Proc. SPIE 10951, Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling, 109510G (8 March 2019); doi: 10.1117/12.2509740
Show Author Affiliations
Nora Boone, Western Univ. (Canada)
Robarts Research Institute
James C. Lacefield, Robarts Research Institute (Canada)
Western Univ. (Canada)
John Moore, Robarts Research Institute (Canada)
Olivia Ginty, Robarts Research Institute (Canada)
Xin Yue Wang, Robarts Research Institute (Canada)
Western Univ. (Canada)
Tamie L. Poepping, Western Univ. (Canada)
Daniel Bainbridge, Western Univ. (Canada)
Terry Peters, Robarts Research Institute (Canada)
Western Univ. (Canada)

Published in SPIE Proceedings Vol. 10951:
Medical Imaging 2019: Image-Guided Procedures, Robotic Interventions, and Modeling
Baowei Fei; Cristian A. Linte, Editor(s)

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