| 图像分割技术在肝CT容积测量中的应用 |
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| 引用本文： | 涂蓉,颜莉蓉,胡德文,伍保忠,黄海伟. 图像分割技术在肝CT容积测量中的应用[J]. 海南医学院学报, 2006, 12(6): 498-501 |
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| 作者姓名： | 涂蓉 颜莉蓉 胡德文 伍保忠 黄海伟 |
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| 作者单位： | 1. 海南医学院附属医院放射科,海南,海口,570102
2. 国防科技大学机电工程与自动化学院,湖南,长沙,410073 |
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| 摘 要： | 目的:研究一种自动测量肝容积和计算相关指标的计算机技术,并验证其效果.方法:利用基于变形模型的肝轮廓提取方法,在自动识别肝轮廓的基础上,实现自动测量.对15个已知容积的标本进行验证测量,另对12例128幅肝CT图像进行自动分割,同时进行手工和自动测量的肝容积值对照.结果:基于变形模型的图像分割技术可以实现肝容积的自动分割,成功率为68%,在分割成功的图像中,测量的单层肝面积与手工描绘测量的肝面积误差率为5.02%.结论:计算机自动测量技术可以实现肝容积的自动测量,但精确性尚需进一步提高.
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| 关 键 词： | 体层摄影术,X线计算机 容积测量 序列图像分割 肝脏 |
| 文章编号： | 1007-1237(2006)06-0498-04 |
| 收稿时间： | 2006-11-04 |
| 修稿时间： | 2006-11-04 |
The application of image segment technique in liver volume measurement |
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| TU Rong, YAN Li-rong, HU De-wen,et al.. The application of image segment technique in liver volume measurement[J]. Journal of Hainan Medical College, 2006, 12(6): 498-501 |
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| Authors: | TU Rong YAN Li-rong HU De-wen et al. |
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| Affiliation: | Department of Radiology Affiliated Hospital of Hainan Medical College, Hainan Haikou 570102,P.R.China |
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| Abstract: | Objective: To study a method of extracting liver outline based on modifying modal.Methods: The algorithm and program of the auto-distinguished liver outline,the auto-measured liver volume and the auto-calculated related index were explored by using the technique.Results: Liver volume can be automatically measured by tomography,though it requires manual adjustment.The success rate of liver segment was 68%,which was less than one by manual work and in which the error rate of measured liver area was 5.02%.Conclusion: The automated measurement method is feasible,but it needs to be improved on the accuracy and the velocity.They will be a good future in 3D reconstrunction of liver,liver transplantation and so on. |
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| Keywords: | Tomography X-ray computed Volumetry Serial image segmentation Liver |
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