Design, fabrication, and characterization of a single-aperture 1.5-MHz/3-MHz dual-frequency HIFU transducer
High-intensity focused ultrasound (HIFU) treatment efficiency is critical in maximizing the hyperthermia and reducing the surgery time. In this paper, a single-aperture, 1.5 MHz/3 MHz dual-frequency HIFU transducer was designed, fabricated, and characterized for tissue ablation enhancement. Double P...
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Veröffentlicht in: | IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2013-07, Vol.60 (7), p.1519-1529 |
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creator | Ma, Jianguo Guo, Sijia Wu, Di Geng, Xuecang Jiang, Xiaoning |
description | High-intensity focused ultrasound (HIFU) treatment efficiency is critical in maximizing the hyperthermia and reducing the surgery time. In this paper, a single-aperture, 1.5 MHz/3 MHz dual-frequency HIFU transducer was designed, fabricated, and characterized for tissue ablation enhancement. Double PZT-2 layers were configured in serial and dual-frequency ultrasound waves can be concurrently generated by exciting one of the PZT-2 layers. Impulse responses from the prototype showed that the wave amplitudes at 1.5 and 3 MHz were about the same, and both are more than 12 dB larger than those of higher orders of harmonics. Tissue ablation tests demonstrated that higher temperature rise can be achieved with dual-frequency ultrasound than with single-frequency ablation at the same acoustic power. |
doi_str_mv | 10.1109/TUFFC.2013.2724 |
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In this paper, a single-aperture, 1.5 MHz/3 MHz dual-frequency HIFU transducer was designed, fabricated, and characterized for tissue ablation enhancement. Double PZT-2 layers were configured in serial and dual-frequency ultrasound waves can be concurrently generated by exciting one of the PZT-2 layers. Impulse responses from the prototype showed that the wave amplitudes at 1.5 and 3 MHz were about the same, and both are more than 12 dB larger than those of higher orders of harmonics. 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In this paper, a single-aperture, 1.5 MHz/3 MHz dual-frequency HIFU transducer was designed, fabricated, and characterized for tissue ablation enhancement. Double PZT-2 layers were configured in serial and dual-frequency ultrasound waves can be concurrently generated by exciting one of the PZT-2 layers. Impulse responses from the prototype showed that the wave amplitudes at 1.5 and 3 MHz were about the same, and both are more than 12 dB larger than those of higher orders of harmonics. Tissue ablation tests demonstrated that higher temperature rise can be achieved with dual-frequency ultrasound than with single-frequency ablation at the same acoustic power.</description><subject>Ablation</subject><subject>Acoustics</subject><subject>Animals</subject><subject>Equipment Design</subject><subject>Ferroelectric materials</subject><subject>Harmonic analysis</subject><subject>Heating systems</subject><subject>High-Intensity Focused Ultrasound Ablation - instrumentation</subject><subject>Hyperthermia</subject><subject>Meat</subject><subject>Models, Biological</subject><subject>Noise levels</subject><subject>Resonant frequency</subject><subject>Serials</subject><subject>Surgery</subject><subject>Swine</subject><subject>Transducers</subject><subject>Ultrasonic imaging</subject><subject>Ultrasound</subject><subject>Vibrations</subject><issn>0885-3010</issn><issn>1525-8955</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><sourceid>EIF</sourceid><recordid>eNqFkU1PGzEQhq2KqgTacw-VKktcOLDJjD927SNKCUGi6oWcV44zpks3u8HePcCvr0MoBy69eDSex6_Gehj7ijBFBDu7Wy0W86kAlFNRCfWBTVALXRir9RGbgDG6kIBwzE5SegBApaz4xI6FBlAa7YT9-UGpue8ueHDr2Hg3NH1uXLfh_reLzg8Um-eXW94H7nhquvuWCrejOIyROE518XP5PJP7k29G1xYh0uNInX_iy5vFig_RdWkzeoqf2cfg2kRfXuspWy2u7ubL4vbX9c388rbwsjJDYaUFCMZIZyWpgDboUqIBua6sVtZoh1VQGioDjnxplUS0rlTSeaEpt6fs_JC7i33eJA31tkme2tZ11I-pRq2UFMIi_h9VwhplS6kzevYOfejH2OWPZAqxKqVVNlOzA-Vjn1KkUO9is3XxqUao98rqF2X1Xlm9V5ZffH_NHddb2rzx_xxl4NsBaIjobVxqLRQI-RfGmpZm</recordid><startdate>20130701</startdate><enddate>20130701</enddate><creator>Ma, Jianguo</creator><creator>Guo, Sijia</creator><creator>Wu, Di</creator><creator>Geng, Xuecang</creator><creator>Jiang, Xiaoning</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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In this paper, a single-aperture, 1.5 MHz/3 MHz dual-frequency HIFU transducer was designed, fabricated, and characterized for tissue ablation enhancement. Double PZT-2 layers were configured in serial and dual-frequency ultrasound waves can be concurrently generated by exciting one of the PZT-2 layers. Impulse responses from the prototype showed that the wave amplitudes at 1.5 and 3 MHz were about the same, and both are more than 12 dB larger than those of higher orders of harmonics. Tissue ablation tests demonstrated that higher temperature rise can be achieved with dual-frequency ultrasound than with single-frequency ablation at the same acoustic power.</abstract><cop>United States</cop><pub>IEEE</pub><pmid>25004519</pmid><doi>10.1109/TUFFC.2013.2724</doi><tpages>11</tpages></addata></record> |
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subjects | Ablation Acoustics Animals Equipment Design Ferroelectric materials Harmonic analysis Heating systems High-Intensity Focused Ultrasound Ablation - instrumentation Hyperthermia Meat Models, Biological Noise levels Resonant frequency Serials Surgery Swine Transducers Ultrasonic imaging Ultrasound Vibrations |
title | Design, fabrication, and characterization of a single-aperture 1.5-MHz/3-MHz dual-frequency HIFU transducer |
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