| 马跃,潘诗农,吴振华,郭启勇.儿童四肢关节结核MR影像特征分析[J].中国医学影像技术,2010,26(2):316~318 |
| 儿童四肢关节结核MR影像特征分析 |
| MRI features of joint tuberculosis of the appendicular skeleton in children |
| 投稿时间：2009-07-10 修订日期：2009-10-30 |
| DOI： |
| 中文关键词: 儿童 感染 结核 关节炎 磁共振成像 |
| 英文关键词:Child Infections Tuberculosis Arthritis Magnetic resonance imaging |
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| 中文摘要: |
| 目的 观察儿童四肢关节结核在MRI上的表现特点,探讨MRI对四肢关节结核的诊断价值。方法 收集16例经临床及病理证实为四肢关节结核的患儿,均采用Philips 3.0T超导型MR机行轴位、矢状位和冠状位SE-T1WI、FSE-T2WI、FSE-PDWI及PD-SPIR序列的检查。全面观察患病关节各部分的MRI特点,并根据发病部位和受累关节结构影像学特点进行分析。结果 16例均为单关节受累,其中髋关节、膝关节最易受累(各占25.00%)。干骺端受累13例,表现为长T1长T2信号。6例关节结核有关节软骨异常改变,表现为T2WI局灶性高信号。关节腔积液13例,滑膜增厚4例,T1WI上呈均匀的中等程度信号,T2WI上呈稍低信号。关节周围软组织受侵16例,其中包括冷脓肿形成2例和蜂窝织炎1例,以长T1长T2信号为主。结论 MRI对判断早期骨髓异常及骨、软骨破坏很有优势,对评价关节积液、滑膜增厚、周围软组织病变扩展范围及严重程度有十分重要的意义。 |
| 英文摘要: |
| Objective To investigate the MRI features of children’s joint tuberculosis of the appendicular skeleton, and to evaluate the diagnostic value of MR imaging. Methods Sixteen consecutive patients confirmed clinically and pathologically were examined with SE-T1WI, FSE-T2WI, FSE-PDWI and PD-SPIR in Philips Achieva 3.0T superconduct MR scanner. Axial, sagital and coronal images were obtained. Articular structure was all analyzed based on the affected parts and features of MRI. Results Hip joint and knee joint were most likely to suffer (each 25.00%). Metaphysis was affected in 13 patients with long signal intensity on T1WI and long signal intensity on T2WI. The changes of articular cartilage presented as abnormality of signal intensity in 6 patients with focal high signal intensity on T2WI. Thirteen patients presented as joint effusion. Synovial thickening in 4 patients showed moderate homogeneous signal on T1WI and slightly lower signal on T2WI. Articular soft tissue was involved in 16 patients, including the formation of cold abscess in 2 and cellulitis in 1 patient, showing long signal intensity on T1WI and long signal intensity on T2WI. Conclusion MRI has the advantage of being able to detect early abnormalities of bone marrow, cartilage damage and to evaluate joint effusion, synovial thickening and soft tissue lesions. |
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