Pulsation Detection from Noisy Ultrasound-Echo Moving Images of Newborn Baby Head Using Fourier Transform.

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  • Yamada Masayoshi
    Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Sakyo–ku, Kyoto 606, Japan
  • Fukuzawa Masayuki
    Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Sakyo–ku, Kyoto 606, Japan
  • Kitsunezuka Yoshiki
    Department of Pediatrics, Himeji Red Cross Hospital, Tatsuno–cho, Himeji, Hyogo 670, Japan
  • Kishida Jun
    Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Sakyo–ku, Kyoto 606, Japan
  • Nakamori Nobuyuki
    Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Sakyo–ku, Kyoto 606, Japan
  • Kanamori Hitoshi
    Department of Electronics and Information Science, Kyoto Institute of Technology, Matsugasaki, Sakyo–ku, Kyoto 606, Japan
  • Sakurai Takashi
    Department of Pediatrics, Himeji Red Cross Hospital, Tatsuno–cho, Himeji, Hyogo 670, Japan
  • Kodama Souichi
    Department of Pediatrics, Himeji Red Cross Hospital, Tatsuno–cho, Himeji, Hyogo 670, Japan

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In order to detect pulsation from a series of noisy ultrasound-echo moving images of a newborn baby's head for pediatric diagnosis, a digital image processing system capable of recording at the video rate and processing the recorded series of images was constructed. The time-sequence variations of each pixel value in a series of moving images were analyzed and then an algorithm based on Fourier transform was developed for the pulsation detection, noting that the pulsation associated with blood flow was periodically changed by heartbeat. Pulsation detection for pediatric diagnosis was successfully made from a series of noisy ultrasound-echo moving images of newborn baby's head by using the image processing system and the pulsation detection algorithm developed here.

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