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Article

Versatile Low-Cost Volumetric 3D Ultrasound Imaging Using Gimbal-Assisted Distance Sensors and an Inertial Measurement Unit

1
Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
2
Micro Nano Fab Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
3
Department of Radiology, Korea University Ansan Hospital, Korea University College of Medicine, Ansan 15355, Korea
4
Bionics Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
*
Author to whom correspondence should be addressed.
These authors have contributed equally to this work.
Sensors 2020, 20(22), 6613; https://doi.org/10.3390/s20226613
Received: 29 September 2020 / Revised: 14 November 2020 / Accepted: 16 November 2020 / Published: 19 November 2020
(This article belongs to the Section Physical Sensors)
This study aims at creating low-cost, three-dimensional (3D), freehand ultrasound image reconstructions from commercial two-dimensional (2D) probes. The low-cost system that can be attached to a commercial 2D ultrasound probe consists of commercial ultrasonic distance sensors, a gimbal, and an inertial measurement unit (IMU). To calibrate irregular movements of the probe during scanning, relative position data were collected from the ultrasonic sensors that were attached to a gimbal. The directional information was provided from the IMU. All the data and 2D ultrasound images were combined using a personal computer to reconstruct 3D ultrasound image. The relative position error of the proposed system was less than 0.5%. The overall shape of the cystic mass in the breast phantom was similar to those from 2D and sections of 3D ultrasound images. Additionally, the pressure and deformations of lesions could be obtained and compensated by contacting the probe to the surface of the soft tissue using the acquired position data. The proposed method did not require any initial marks or receivers for the reconstruction of a 3D ultrasound image using a 2D ultrasound probe. Even though our system is less than $500, a valuable volumetric ultrasound image could be provided to the users. View Full-Text
Keywords: volumetric ultrasound imaging; freehand; low-cost; distance sensor; gimbal; inertial measurement unit volumetric ultrasound imaging; freehand; low-cost; distance sensor; gimbal; inertial measurement unit
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MDPI and ACS Style

Kim, T.; Kang, D.-H.; Shim, S.; Im, M.; Seo, B.K.; Kim, H.; Lee, B.C. Versatile Low-Cost Volumetric 3D Ultrasound Imaging Using Gimbal-Assisted Distance Sensors and an Inertial Measurement Unit. Sensors 2020, 20, 6613. https://doi.org/10.3390/s20226613

AMA Style

Kim T, Kang D-H, Shim S, Im M, Seo BK, Kim H, Lee BC. Versatile Low-Cost Volumetric 3D Ultrasound Imaging Using Gimbal-Assisted Distance Sensors and an Inertial Measurement Unit. Sensors. 2020; 20(22):6613. https://doi.org/10.3390/s20226613

Chicago/Turabian Style

Kim, Taehyung, Dong-Hyun Kang, Shinyong Shim, Maesoon Im, Bo K. Seo, Hyungmin Kim, and Byung C. Lee 2020. "Versatile Low-Cost Volumetric 3D Ultrasound Imaging Using Gimbal-Assisted Distance Sensors and an Inertial Measurement Unit" Sensors 20, no. 22: 6613. https://doi.org/10.3390/s20226613

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