Schedel H, Reimers C D, Vogl T, Witt T N
Department of Radiology, Ludwig-Maximilian's University, Munich, Germany.
Acta Radiol. 1995 May;36(3):228-32.
Muscle edema has been described as a typical finding on MR images in acute neuromuscular disorders, predominantly in acute inflammatory myopathies, but also in neuro- and myopathies. The purpose of this study was to examine the frequency of muscle edema and the diagnostic usefulness of Gd-DTPA in neuromuscular diseases. 144 consecutive patients with various generalized neuromuscular diseases were examined by MR imaging. Areas of high signal intensity, relative to normal muscle, were seen in 36% of T2-weighted images, whereas the corresponding T1-weighted images showed normal or lower signal intensities. These edema-like abnormalities--enlargement of the extracellular fluid space--were found more often in inflammatory and metabolic myopathies, but were also seen in degenerative myopathies. Contrast-enhanced T1-weighted images in 25 patients were not more sensitive than plain T2-weighted images.
肌肉水肿被描述为急性神经肌肉疾病磁共振成像（MR）的典型表现，主要见于急性炎症性肌病，但也见于神经和肌肉疾病。本研究的目的是探讨肌肉水肿的发生率以及钆喷酸葡胺（Gd-DTPA）在神经肌肉疾病中的诊断价值。对144例连续性各种全身性神经肌肉疾病患者进行了MR成像检查。在36%的T2加权图像上可见相对于正常肌肉的高信号强度区域，而相应的T1加权图像显示正常或更低的信号强度。这些类似水肿的异常——细胞外液间隙增大——在炎症性和代谢性肌病中更常见，但在退行性肌病中也可见到。25例患者的对比增强T1加权图像并不比普通T2加权图像更敏感。
