Littrup P J, Aisen A M, Braunstein E M, Martel W
Skeletal Radiol. 1985;14(3):159-63. doi: 10.1007/BF00355555.
Magnetic resonance images (MRI) of 22 patients with roentgenographically normal hips were reviewed retrospectively and the findings categorized according to age. With increasing maturity, the MR intensity of the femoral heads on spin echo images increased, as marrow fat became a dominant tissue in the head. The femoral head pattern was relatively inhomogeneous, with a broad band of diminished intensity extending in a posteromedial to anterolateral direction, corresponding to the pattern of trabecular bone. The femoral capital epiphyses were visible in younger patients as structures of bright intensity which remained evident through early adulthood. The articular cartilage of the hip joint was noted as a distinctive "halo" around the femoral head. An understanding of the MR pattern of the normal hip will aid in the early recognition of pathologic conditions, such as osteonecrosis.
对22例X线检查显示髋关节正常的患者的磁共振成像（MRI）进行了回顾性分析，并根据年龄对检查结果进行了分类。随着成熟度的增加，自旋回波图像上股骨头的磁共振信号强度增加，因为骨髓脂肪成为股骨头中的主要组织。股骨头的信号模式相对不均匀，强度减弱的宽带从后内侧延伸至前外侧，与小梁骨的模式相对应。在较年轻的患者中，股骨头骨骺表现为高强度结构，在成年早期仍很明显。髋关节的关节软骨在股骨头周围表现为独特的“晕圈”。了解正常髋关节的磁共振模式将有助于早期识别诸如骨坏死等病理状况。
