Combination of Functional Ultrasonic Images to Evaluate the Tissue Ablation and Denaturation: a Feasibility Study
Date Issued
2010
Date
2010
Author(s)
Huang, Chung-Kun
Abstract
The ultrasound diagnostic imaging has become one of the most used tool in medical examination, since it has the advantages of non-invasive, harmless, low price, real-time and high mobility properties. However, because of ultrasound B-mode image need to be construed by instructed doctor and can not be used to quantitative analysis, many statistical models were proposed in order to provide more objective diagnostic. Besides, some functional ultrasound images were also developed for pathological changes of tissue.
In this study, we utilized three different functional ultrasound images: B-mode image, Nakagami image and elasticity image. In the first part, we used phantom experiment to verify the Nakagami m parameter’s physical mean. We design four different phantom ,and verify Nakagami m parameter with Nakagami imaging and elasticity imaging.
The second part of study is tissue ablation experiment. In recent year, ablation technique has been a common treatment technology. However, it is not easy to find out the affected part with bare eyes during ablation therapy, therefore some imaging tools have been carried out. In this study, we ablated pork tissue by microwave ablation technique, then we used B-mode image, Nakagami image and elasticity image to observe the change of tissue and evaluate the area of tissue ablation in order to find out the suitable imaging tool to aid in ablation.
Subjects
ultrasound
B-mode image
Nakagami image
elasticity image
Type
thesis
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