Histological Differentiation Grade Predicted by Ultrasound Backscatterer Imaging
Histological grade of hepatocellular carcinoma (HCC) is an important prognostic factor affecting patient survival. It has been divided into four grades from I to IV on the basis of histological differentiation. Grade I is the best differentiated consisting of small tumor cells arranged in thin trabeculae. Cells with higher grade are larger and less differentiated with hyperchromatic nuclei and loss of trabecular pattern.
Ultrasound is an imaging modality frequently used to evaluate liver tumors because of its convenience, real-time, less expensive and no radiation exposure. However, ultrasonographic evaluation by conventional B-mode image is semi quantitative and subjective. It still cannot replace liver biopsy for the evaluation of HCC.
This study is aimed to quantify the image characters of B-mode image and the scatterer properties using Nakagami distribution. Nakagami parameter is a general model to describe the distribution of scatterers. Therefore, the investigators hypothesized that Nakagami parameter may also reflect the histological changes in different grades of HCC.
In this study, the resected HCC tumor samples will be collected from the participants who are going to receive surgical resection, and the tumor US images and Nakagami values will be obtained via the single-element ultrasound system. The correlation between the ultrasound backscatter parameter and the differentiation grade will be analyzed.
研究概览
研究类型
注册 (预期的)
联系人和位置
学习地点
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Taipei、台湾、10051
- 招聘中
- National Taiwan University Hospital
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
取样方法
研究人群
描述
Inclusion Criteria:
- Age 21 to 75
- Patients with HCC who underwent surgery
- The resected tumor was measured larger than 3 cm
Exclusion Criteria:
- Patients who have received other treatment in 6 months
- Patients who couldn't regular follow-up
学习计划
研究是如何设计的?
设计细节
队列和干预
团体/队列 |
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Hepatocellular carcinoma
patients HCC who are going to receive surgical resection
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Recurrence-free survival
大体时间:within two years after surgery
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Suspected recurrences will be confirmed by CT or MRI.
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within two years after surgery
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Liver-related mortality
大体时间:five years
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five years
|
合作者和调查者
调查人员
- 首席研究员:Ming-Chih Ho, MD、Department of Surgery, National Taiwan University Hospital
研究记录日期
研究主要日期
学习开始
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
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