| 基于Snake模型的海马结构MR图像分割方法的应用研究 |
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| 引用本文： | 李祥林,王昌元,李月卿,魏佑震,徐惠,阮春.基于Snake模型的海马结构MR图像分割方法的应用研究[J].中国医学计算机成像杂志,2001,7(6):419-422. |
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| 作者姓名： | 李祥林 王昌元 李月卿 魏佑震 徐惠 阮春 |
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| 作者单位： | 1. 山东省泰山医学院放射系,271000
2. 山东省泰山医学院解剖教研室,271000 |
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| 摘 要： | 目的：介绍一种海马结构的磁共振图像分割方法Snake模型，并利用该模型对海马结构的磁共振图像进行分割研究。材料和方法：首先在MR图像工作站上采集图像，并进行图像预处理；然后编程，利用Snake模型进行海马结构的边缘检测，从磁共振图像中分割出海马结构。结果：除通过人机交互，由操作者给出初始轮廓外，Snake模型能从磁共振图像中自动分割出海马结构。Snake分割与人工分割总的重叠率是84％，标准差SD＝8．30。结论：Snake模型是一种快速、有效的海马结构分割方法，具有很强的鲁棒性和稳定性。
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| 关 键 词： | 磁共振图像 海马结构 动态轮廓模型 图像分割 应用 |
Application of Segmentation Method of Hippocampal Formation MRI Based on Snake |
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| MRI Based on SnakeLi Xianglin,Wang Changyuan,Li Yueqing,et al.Application of Segmentation Method of Hippocampal Formation MRI Based on Snake[J].Chinese Computed Medical Imaging,2001,7(6):419-422. |
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| Authors: | MRI Based on SnakeLi Xianglin Wang Changyuan Li Yueqing |
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| Institution: | MRI Based on SnakeLi Xianglin,Wang Changyuan,Li Yueqing,et alDepartment of Radiology,Taishan Medical College,Taian 271000 |
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| Abstract: | A fast and efficient segmentation method of hippocampal formation MRI,snake model,was introduced in this paper.Materials and Method:At first,MR images were acquired with 1.5T unit(Philips Gyroscan ACS-NT) and were preprocessed on the MR image workstation;and then,to program and hippocampal formation can be separated from MR brain images by using snake model.Results:Hippocampal formation can be automatically segmented by the snake model except that an initial contour was drawn by an operator.The overall percentage overlap between snake and manual segmentations was 84%,SD=8.03.Conclusion:The snake model is fast and efficient and has strong robustness in the segmentation of hippocampal formation. |
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| Keywords: | Magnetic resonance imaging Hippocampal formation Active contour model Image segmentation |
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