CHONDROMALACIA PATELLAE - FAT-SUPPRESSED MR-IMAGING
CHONDROMALACIA PATELLAE - FAT-SUPPRESSED MR-IMAGING
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DOI：
10.1148/radiology.193.2.7972759
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发表时间：
1994-11-01
期刊：
影响因子：
19.7
通讯作者：
QUINN, SF
中科院分区：
文献类型：
--
作者：
ROSE, PM;DEMLOW, TA;QUINN, SF
目的：评价脂肪抑制磁共振(MR)成像在诊断髌骨软化症中的准确性。材料与方法：对71例患者进行了脂肪抑制磁共振成像和关节镜检查。结果：早期和晚期软骨软化症诊断可靠，阳性预测值分别为85%和92%。早期特异度为94%，晚期特异度为98%。然而，总体准确性与没有使用脂肪抑制成像的研究报告的结果没有实质性差异。结论：轴位脂肪抑制磁共振成像准确地描述了由软骨软化症引起的变化。早期可视为实质内信号强度增强的改变。这项研究的结果表明，在排除早期和晚期变化方面具有高度的特异性。
PURPOSE: To evaluate the accuracy of fat-suppressed magnetic resonance (MR) imaging in diagnosing chondromalacia patellae.MATERIALS AND METHODS: Seventy-one patients underwent fat-suppressed MR imaging and arthroscopy of the patellofemoral compartment. Findings were classified as early or advanced chondromalacia or as normal and were correlated with arthroscopic findings.RESULTS: Early and advanced stages of chondromalacia patellae were reliably detected, with positive predictive values of 85% and 92%, respectively. Specificity in early stages was 94% and in late stages was 98%. However, the overall accuracies did not differ substantially from those reported in studies that did not use fat-suppressed imaging.CONCLUSION: Axial, fat-suppressed MR imaging accurately depicts changes caused by chondromalacia patellae. Early stages can be seen as intrasubstance changes of increased signal intensity. Results of this study suggest a high degree of specificity in excluding both early and advanced changes.