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Journal of Zhejiang University SCIENCE B

ISSN 1673-1581(Print), 1862-1783(Online), Monthly

Liver fibrosis identification based on ultrasound images captured under varied imaging protocols

Abstract: Diagnostic ultrasound is a useful and noninvasive method in clinical medicine. Although due to its qualitative, subjective and experience-based nature, ultrasound image interpretation can be influenced by image conditions such as scanning frequency and machine settings. In this paper, a novel method is proposed to extract the liver features using the joint features of fractal dimension and the entropies of texture edge co-occurrence matrix based on ultrasound images, which is not sensitive to changes in emission frequency and gain. Then, Fisher linear classifier and support vector machine are employed to test a group of 99 in-vivo liver fibrosis images from 18 patients, as well as other 273 liver images from 18 normal human volunteers.

Key words: Liver fibrosis, Texture, Co-occurrence matrix, Fisher classifier, Support vector machine


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DOI:

10.1631/jzus.2005.B1107

CLC number:

R445; TP391

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Received:

2005-06-20

Revision Accepted:

2005-08-08

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