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Proceedings Paper

Motion analysis of artery pulsation in neonatal cranial ultrasonogram
Author(s): Masayuki Fukuzawa; Hiroki Kubo; Yoshiki Kitsunezuka; Masayoshi Yamada
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Paper Abstract

Using an optical-flow technique, we have quantitatively analyzed tissue motion due to artery pulsation accompanied with blood flow in a neonatal cranial ultrasonogram. The tissue motion vector was successfully calculated at each pixel in a series of echo images (32 frames, 640 X 480 pixels/frame, 8 bits/pixel, 33 ms/frame) taken in the brightness mode by using an ultrasound probe of 5.0 MHz. The optical-flow technique used was a gradient method combined with local optimization for 3 X 3 neighbors. From 2D mappings of tissue motion vectors and their time-sequence variations, it was found that the tissue motion due to artery pulsation revealed periodic to-and-fro motion synchronized with heartbeat (300 - 500 ms), clearly distinguishing from unwanted non-periodic motion due to the sway of neonatal head during diagnosis.

Paper Details

Date Published: 21 May 1999
PDF: 9 pages
Proc. SPIE 3661, Medical Imaging 1999: Image Processing, (21 May 1999); doi: 10.1117/12.348519
Show Author Affiliations
Masayuki Fukuzawa, Kyoto Institute of Technology (Japan)
Hiroki Kubo, Kyoto Institute of Technology (Japan)
Yoshiki Kitsunezuka, Saiseikai Hyogo-ken Hospital (Japan)
Masayoshi Yamada, Kyoto Institute of Technology (Japan)

Published in SPIE Proceedings Vol. 3661:
Medical Imaging 1999: Image Processing
Kenneth M. Hanson, Editor(s)

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