A computer aided for image processing of computed tomography in hepatocellular carcinoma

Wei Tai Hsu, Jia Rong Yeh, Yi Chung Chang, Men Tzung Lo, Yi Hsien Lin

研究成果: 書貢獻/報告類型會議論文篇章同行評審

2 引文 斯高帕斯(Scopus)

摘要

Low contrast to noise ratio (CNR) of unenhanced computed tomography (CT) is sometimes hard to visualize by the clinical practice. In order to assist the clinical diagnosis, a computer aided for unenhanced CT image processing is introduced in detection of hepatocellular carcinoma (HCC). This study utilized the stochastic resonance (SR) filter by adjusting localized threshold range with adding random noise for enhancing the region of interest (ROI). The quantitative measurement by using the measure of enhancement or measure of improvement (EME) is applied on the series of original and enhanced images. The value of mean and standard deviation of EME values is 2.652 ± 2.167 for the original images and 6.260 ± 1.206 for enhanced images. Then k-mean clustering method played the role based on the cluster analysis with the nearest mean for the local segmentation. The diagnostic check for determining the number of clusters on each enhanced images is important for getting a better result. In fact, K = 10 is more appropriate for the data sets of enhanced images. Finally, the image fusion process is involved two sets of data, enhanced and post-processed of enhanced and clustering information, to provide relevant information. Using the T = 0.45 as the threshold value applied on clustering and enhanced images eliminates the stronger intensity of pixels. Though those processes, the unenhanced information could be extracted out as the reference information for the clinical diagnosis. HCC was well isolated on processed images. Our results demonstrated the utilization of the computer aided for image processing of CT images might help to detect the HCC.

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主出版物標題2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops, BIBMW 2011
頁面942-944
頁數3
DOIs
出版狀態已出版 - 2011
事件2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops, BIBMW 2011 - Atlanta, GA, United States
持續時間: 12 11月 201115 11月 2011

出版系列

名字2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops, BIBMW 2011

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???event.eventtypes.event.conference???2011 IEEE International Conference on Bioinformatics and Biomedicine Workshops, BIBMW 2011
國家/地區United States
城市Atlanta, GA
期間12/11/1115/11/11

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