High-range-resolution imaging using frequency domain interferometry with stabilization techniques for real-time vascular ultrasound

نویسندگان

  • Hirofumi Taki
  • Kousuke Taki
  • Makoto Yamakawa
  • Tsuyoshi Shiina
  • Motoi Kudo
  • Toru Sato
چکیده

1Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan 2Department of Anatomy, Shiga University of Medical Science, Otsu 520-2192, Japan 3Advanced Biomedical Engineering Research Unit, Kyoto University, Kyoto 606-8501, Japan 4Graduate School of Medicine, Kyoto University, Kyoto 606-8501, Japan 5Graduate School of Informatics, Kyoto University, Kyoto 606-8501, Japan E-mail: [email protected]

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

High-depth-resolution range imaging with multiple-wavelength superheterodyne interferometry using 1550-nm lasers.

Lasers and laser diodes are widely used as illumination sources for optical imaging techniques. Time-of-flight (ToF) cameras with laser diodes and range imaging based on optical interferometry systems using lasers are among these techniques, with various applications in fields such as metrology and machine vision. ToF cameras can have imaging ranges of several meters, but offer only centimeter-...

متن کامل

High-speed optical frequency-domain imaging.

We demonstrate high-speed, high-sensitivity, high-resolution optical imaging based on optical frequency-domain interferometry using a rapidly-tuned wavelength-swept laser. We derive and show experimentally that frequency-domain ranging provides a superior signal-to-noise ratio compared with conventional time-domain ranging as used in optical coherence tomography. A high sensitivity of -110 dB w...

متن کامل

Application of Single-Frequency Time-Space Filtering Technique for Seismic Ground Roll and Random Noise Attenuation

Time-frequency filtering is an acceptable technique for attenuating noise in 2-D (time-space) and 3-D (time-space-space) reflection seismic data. The common approach for this purpose is transforming each seismic signal from 1-D time domain to a 2-D time-frequency domain and then denoising the signal by a designed filter and finally transforming back the filtered signal to original time domain. ...

متن کامل

Commentary. Characterization of carotid artery plaques using real-time compound B-mode ultrasound.

BACKGROUND AND PURPOSE Real-time compound ultrasound imaging is a new technique for improving the image quality of B-mode scanning. We investigated the value of this method for the characterization of atherosclerotic plaques in the internal carotid artery. METHODS Thirty-two patients (22 men, 10 women; mean age, 75 years) with plaques of the internal carotid artery as identified by high-resol...

متن کامل

Full Range Swept-Source Optical Coherence Tomography with Ultra Small Fiber Probes for Biomedical Imaging 27 Full Range Swept-Source Optical Coherence Tomography with Ultra Small Fiber Probes for Biomedical Imaging

Optical coherence tomography (OCT) (Huang et al., 1991) is becoming an increasingly important imaging tool for many applications in biology and medicine, such as diagnosis and guided surgery. Due to its high resolution and fiber catheter capability, OCT is more attractive than current imaging technologies, such as ultrasound. An OCT system with higher sensitivity is essentially important for im...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2015