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X-ray carpal bone segmentation and area measurement
Multimedia Tools and Applications ( IF 3.6 ) Pub Date : 2021-07-31 , DOI: 10.1007/s11042-021-11281-5
Amir Faisal 1 , Azira Khalil 2 , Hum Yan Chai 3 , Khin Wee Lai 4
Affiliation  

A computerized bone age assessment requires segmentation of the X-ray carpal bones from other undesired tissue regions. This paper presents segmentation and area measurement of carpal bones in X-ray images. The locally weighted K-means variational level set was applied in segmenting 67 X-ray carpal bone datasets. Dice coefficient and Hausdorff distance measures show mean values above 0.7 and around 3 pixels, respectively. These satisfying segmentation outcomes enable the carpal bone areas to be measured on the segmented images. The carpal bone area measurement ranged from 4.24 mm to 48.96 mm with a mean value of 20.70 ± 10.51 mm and various values of the Pearson’s correlation coefficient implies that the segmentation method is insensitive to different carpal bone areas and locations. These results suggest that the methods can be applied in the bone age assessment by quantifying changes in the carpal bone area over certain time intervals.



中文翻译:

X射线腕骨分割和面积测量

计算机化的骨龄评估需要从其他不需要的组织区域分割X射线腕骨。本文介绍了X射线图像中腕骨的分割和面积测量。局部加权 K-means 变分水平集应用于分割 67 X-ray 腕骨数据集。骰子系数和 Hausdorff 距离度量分别显示平均值高于 0.7 和大约 3 个像素。这些令人满意的分割结果使得能够在分割图像上测量腕骨区域。腕骨面积测量范围从 4.24 毫米到 48.96 毫米,平均值为 20.70 ± 10.51 毫米,皮尔逊相关系数的各种值意味着分割方法对不同的腕骨区域和位置不敏感。这些结果表明,这些方法可以通过量化特定时间间隔内腕骨面积的变化来应用于骨龄评估。

更新日期:2021-08-01
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