2005-12-01
Harmonic intravascular ultrasound imaging with a dual-frequency catheter
Publication
Publication
Recent studies showed the feasibility of Tissue Harmonic Imaging (THI) with a prototype Intravascular Ultrasound (IVUS) system using a conventional single-element rotating IVUS catheter. In this study, a previously developed dual-frequency transducer element was mounted in an IVUS catheter and its performance was investigated. Hydrophone measurements showed a transmit efficiency at 20 MHz that was >6 dB higher than that of a conventional IVUS transducer. In vitro phantom experiments showed a signal-to-noise ratio improvement of >5 dB in second harmonic mode at 40 MHz (H40) with the dual-frequency catheter, with equal transmit voltage for both catheters. Finally, in vivo experiments showed image improvement in H40 acquisitions.
| Additional Metadata | |
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| doi.org/10.1109/ULTSYM.2005.1602840, hdl.handle.net/1765/52446 | |
| 2005 IEEE Ultrasonics Symposium | |
| Organisation | Department of Cardiology |
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Frijlink, M., Goertz, D., Vos, R., Droog, S., Blacquière, G., Gisolf, A., & van der Steen, T. (2005). Harmonic intravascular ultrasound imaging with a dual-frequency catheter. Presented at the 2005 IEEE Ultrasonics Symposium. doi:10.1109/ULTSYM.2005.1602840 |
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