Development of a high-definition intravascular ultrasound imaging system and catheter

Author

Waters, Kendall R. ; Bautista, Rick ; Zelenka, Robert ; Masters, Donald ; Reynolds, J. Steve ; Nelson, Steve ; Lam, Duc H. ; Neville, Ron ; Moore, Thomas C.

Author_Institution

Silicon Valley Med. Instrum., Inc., Fremont, CA, USA

fYear

2011

fDate

18-21 Oct. 2011

Firstpage

1762

Lastpage

1765

Abstract

We have developed a high-frequency intravascular ultrasound (IVUS) system and catheter that is capable of imaging through a blood field at 40 MHz and 60 MHz. Representative transducers exhibit >;50 MHz center frequency, >;50 % fractional bandwidth, and a -20 dB pulse duration of <;80 ns. A series of bench, ex vivo, non-clinical, and clinical studies demonstrate that benefits of the IVUS imaging system and catheter include improved spatial and contrast resolution. The 60 MHz IVUS images appear to enable improved detection of lipid-rich plaque and thrombus, which can potentially impact treatment decisions.

Keywords

biomedical transducers; biomedical ultrasonics; cardiology; catheters; diseases; patient treatment; IVUS imaging system; blood field; catheter; fractional bandwidth; frequency 40 MHz; frequency 60 MHz; high-definition intravascular ultrasound imaging system; high-frequency intravascular ultrasound system; lipid-rich plaque; potentially impact treatment decisions; pulse duration; spatial contrast resolution; thrombus; transducers; Arteries; Catheters; Heart; Imaging; Time domain analysis; Transducers; Wires; clinical; coronary heart disease; intravascular ultrasound;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultrasonics Symposium (IUS), 2011 IEEE International

Conference_Location

Orlando, FL

ISSN

1948-5719

Print_ISBN

978-1-4577-1253-1

Type

conf

DOI

10.1109/ULTSYM.2011.0440

Filename

6293668