Results:The metaphysis and the periphery of the secondary center of ossification were red marrow. They showed marked enhancement on T 1WI. Enhancement ratio declined in both regions with age.
结果：干骺端骨髓和骨骺二次骨化中心周边骨髓为含有丰富血管的红骨髓，增强后呈显著强化，且干骺端增强率较骨骺骨髓更高，但随年龄增长，两者的增强率均逐渐减低。
Phalange recognition mainly rely on ossification center, so the location of ossification center is key to phalange recognition.
指骨识别主要依靠骨化中心，因而骨化中心的定位成为指骨识别的关键。
The graph of phalange projection has obvious fluctuations but has much noise which will influence the results of ossification center location, so it is very important to reduce noise of projection.
投影图波动明显，但噪声比较大，影响骨化中心定位结果，因此去除投影噪声非常重要。
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