Estimation of the Scatterer Distribution of the Cirrhotic Liver using Ultrasonic Image
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概要
- 論文の詳細を見る
In the B-mode image of the liver obtained by an ultrasonic imaging system, the speckled pattern changes with the progression of the disease such as liver cirrhosis. In this paper we present the statistical characteristics of the echo envelope of the liver, and the technique to extract information of the scatterer distribution from the normal and cirrhotic liver images using constant false alarm rate (CFAR) processing. We analyze the relationship between the extracted scatterer distribution and the stage of liver cirrhosis. The ratio of the area in which the amplitude of the processing signal is more than the threshold to the entire processed image area is related quantitatively to the stage of liver cirrhosis. It is found that the proposed technique is valid for the quantitative diagnosis of liver cirrhosis.
- 社団法人応用物理学会の論文
- 1998-05-30
著者
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HACHIYA Hiroyuki
Department of Information & Image Sciences, Chiba University
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Yamaguchi Tadashi
Department Of Information & Computer Sciences University Of Chiba
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Yamaguchi Tadashi
Department of Agriculture and Horticulture, Kobe University
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