NDLI: Medical ultrasound image quality improvement using synthetic aperture focusing on display pixels

Content Provider	IEEE Xplore Digital Library
Author	Jaeyoung Lee Jaegeun Lee
Copyright Year	2011
Description	Author affiliation: Department of Surgery, Yonsei University College of Medicine, Seoul, Korea (Jaegeun Lee) \|\| Central R&D Center, MANDO Corporation, Seongnam Si, Korea (Jaeyoung Lee)
Abstract	In this paper, we propose synthetic aperture focusing (SAF) on display pixels to provide much clearer medical images. This method directly focuses on each pixel to solve the problem of image quality degradation which is occurred by the two-dimension interpolation of digital scan conversion. The suggested method applies SAF that uses the fixed focusing points of transmitters as virtual sources to improve contrast and signal-to-noise ratio. It also uses multi-order sampling to calculate the envelope of pixels with minimum computational costs. To verify the proposed method, the data obtained from the carotid region by using the 7.5MHz linear array is used. Since the suggested method shows distinct speckles and boundaries, the images can be used to eliminate speckles, extract tissue characteristic, and track speckles. This method provides 134% higher contrast and 55% lower computational costs than conventional SAF.
Starting Page	380
Ending Page	383
File Size	1242227
Page Count	4
File Format	PDF
ISBN	9781424493517
e-ISBN	9781424493524
DOI	10.1109/BMEI.2011.6098287
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-10-15
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image quality speckle Ultrasonic imaging tissue characteristic digital scan conversion Focusing Speckle medical ultrasound Acoustics synthetic aperture focusing Computational efficiency Biomedical imaging
Content Type	Text
Resource Type	Article

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