Yazar "Değertekin, Fahrettin Levent" için MF - Makale Koleksiyonu | Elektrik-Elektronik Mühendisliği Bölümü / Department of Electrical-Electronics Engineering listeleme
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An analog integrated circuit beamformer for high-frequency medical ultrasound imaging
Gürün, Gökçe; Zahorian, Jaime S.; Şişman, Alper; Karaman, Mustafa; Hasler, Paul E.; Değertekin, Fahrettin Levent (IEEE-INST Electrical Electronics Engineers Inc, 2012-10)We designed and fabricated a dynamic receive beamformer integrated circuit (IC) in 0.35-mu m CMOS technology. This beamformer IC is suitable for integration with an annular array transducer for high-frequency (30-50 MHz) ... -
Annular-ring CMUT arrays for forward-looking IVUS: Transducer characterization and imaging
Değertekin, Fahrettin Levent; Güldiken, Rasim Oytun; Karaman, Mustafa (IEEE, 2006-02)In this study, a 64-element, 1.15-mm diameter annular-ring capacitive micromachined ultrasonic transducer (CMUT) array was characterized and used for forward-looking intravascular ultrasound (IVUS) imaging tests. The array ... -
Monolithic CMUT-on-CMOS integration for intravascular ultrasound applications
Zahorian, Jaime S.; Hochman, Michael; Xu, Toby; Satır, Sarp; Gürün, Gökçe; Karaman, Mustafa; Değertekin, Fahrettin Levent (IEEE-INST Electrical Electronics Engineers Inc, 2011-12)One of the most important promises of capacitive micromachined ultrasonic transducer (CMUT) technology is integration with electronics. This approach is required to minimize the parasitic capacitances in the receive mode, ... -
Optimizing circular ring arrays for forward-looking IVUS imaging
Tekeş, Coşkun; Karaman, Mustafa; Değertekin, Fahrettin Levent (IEEE-Inst Electrical Electronics Engineers Inc, 2011-12)Forward-looking (FL) catheter-based imaging systems are highly desirable for guiding interventions in intravascular ultrasound (IVUS) applications. One of the main challenges of array-based FL-IVUS systems is the large ...