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http://hdl.handle.net/10397/94674
Title: | Three-dimensional intravascular ultrasound imaging using a miniature helical ultrasonic motor | Authors: | Wang, B Zhou, Y Wang, Y Li, X He, L Wen, Z Cao, T Sun, L Wu, D |
Issue Date: | Feb-2022 | Source: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control, Feb. 2022, v. 60 , no. 2, p. 681-690 | Abstract: | Existing 3-D intravascular ultrasound (IVUS) systems that combine two electromagnetic (EM) motors to drive catheters are bulky and require considerable efforts to eliminate EM interference (EMI). Here, we propose a new scanning method to realize 3-D IVUS imaging using a helical ultrasonic motor to overcome the aforementioned issues. The ultrasonic motor with compact dimensions (7-mm outer diameter and 30-mm longitudinal length), lightweight (20.5 g), and free of EMI exhibits a great application potential in mobile imaging devices. In particular, it can simultaneously perform rotary and linear motions, facilitating precise 3-D scanning of an imaging catheter. Experimental results show that the signal-to-noise ratio (SNR) of raw images obtained using the ultrasonic motor is 5.3 dB better than that of an EM motor. Moreover, the proposed imaging device exhibits the maximum rotary speed of 12.3 r/s and the positioning accuracy of 2.6 μm at a driving voltage of 240 Vp-p. The 3-D wire phantom imaging and 3-D tube phantom imaging are performed to evaluate the performance of the imaging device. Finally, the in vitro imaging of a porcine coronary artery demonstrates that the layered architecture of the vessel can be precisely identified while significantly increasing the SNR of the raw images. | Keywords: | High-frequency transducer Intravascular ultrasound (IVUS) imaging Mechanical scanning device Ultrasonic motor |
Publisher: | Institute of Electrical and Electronics Engineers | Journal: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control | ISSN: | 0885-3010 | EISSN: | 1525-8955 | DOI: | 10.1109/TUFFC.2021.3132607 | Rights: | © 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The following publication B. Wang et al., "Three-Dimensional Intravascular Ultrasound Imaging Using a Miniature Helical Ultrasonic Motor," in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 69, no. 2, pp. 681-690, Feb. 2022 is available at https://dx.doi.org/10.1109/TUFFC.2021.3132607. |
Appears in Collections: | Journal/Magazine Article |
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Wang_Three-dimensional_Intravascular_Helical.pdf | Pre-Published version | 1.2 MB | Adobe PDF | View/Open |
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