Forward-looking IVUS imaging using an annular-ring CMUT array
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CitationDegertekin, F. L., Karaman, M., & Guldiken, R. O. (2005). Forward-looking IVUS imaging using an annular-ring CMUT array. Paper presented at the , 1 129-132. doi:10.1109/ULTSYM.2005.1602813
A 64-element, 1.15mm diameter annular-ring CMUT array was characterized and used for forward-looking IVUS imaging tests. The array was manufactured using low temperature processes suitable for CMOS electronics integration on a single chip. The 43×140µm2 array element has suitable view angle for forward looking imaging around 15MHz center frequency and pulse-echo measurements show nearly 100% fractional bandwidth around 17MHz. For imaging and SNR measurements, RF A-scan data sets from various targets were collected using an interconnect scheme forming a 32-element array configuration. The results demonstrate that annular-ring CMUT arrays fabricated with CMOS compatible processes are capable of forward-looking IVUS imaging.