کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
877285 | 910913 | 2007 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Quantifying deterioration of bone tissue from grey-level images Quantifying deterioration of bone tissue from grey-level images](/preview/png/877285.png)
Quantification of the severity of the deterioration in bone tissue is an important diagnostic problem involving the assessment of connectedness of the tissue from its grey-level images. In this study a fuzzy parameter was introduced for quantifying the severity of discontinuities of network-like structures. For each two pixels of an analyzed image, the fuzzy parameter was derived from the grey-level intensity along the brightest path connecting them. The performance of this parameter was tested on images of continuous and discontinuous samples of vertebral trabecular bone, matched for mean gray-level intensity. It was shown that the values of the parameter were significantly different (P-value < 10−6) in both groups and equal to 0.02 ± 0.11 and 0.46 ± 0.22 for discontinuous and continuous samples, respectively. The decrease in the fuzzy parameter could be interpreted as the result of either an increasing gap size in discontinuous structures or a decreasing thickness of structure elements in continuous structures. A possible application of the method for use in quantifying severity of discontinuities within the vertebral cortical rim was described.
Journal: Medical Engineering & Physics - Volume 29, Issue 4, May 2007, Pages 497–504