干骺端的部分血液经干骺端静脉回流。
A part of blood in the metaphysis drains into the metaphyseal veins.
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。
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.
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