Department of Neurology, Washington University School of Medicine, St. Louis, MO 63110, USA.
Neuromuscul Disord. 2010 Dec;20(12):805-9. doi: 10.1016/j.nmd.2010.06.019.
Evaluation of ultrasound images of muscle with calibrated muscle backscatter (cMB) provides reproducible quantitative measurements of muscle pathology. Increased cMB is associated with greater muscle pathology. We used cMB to evaluate the severity of muscle pathology in 55 patients with Duchenne and Becker Muscular Dystrophy (D/BMD) compared to 77 controls. cMB was also compared to measurements of strength and function. cMB in DMD and BMD increased linearly with age and was higher than in controls when groups are compared. cMB increased twice as fast with age in DMD than in BMD. In DMD, cMB was higher with reduced function and strength. Ultrasound measurement of muscle pathology using cMB is a sensitive and objective quantitative technique for determining the severity of muscle pathology in dystrophinopathies. Longitudinal studies are required to determine the sensitivity of this measure to changes in pathology over time.
采用校准肌肉背散射(cMB)的超声图像评估可提供肌肉病理学的重复性定量测量。cMB 增加与更大的肌肉病理学相关。我们使用 cMB 评估了 55 名杜氏和贝克型肌营养不良症(D/BMD)患者与 77 名对照者的肌肉病理学严重程度。cMB 也与力量和功能的测量进行了比较。DMD 和 BMD 的 cMB 随年龄呈线性增加,与对照组相比更高。DMD 中 cMB 的年龄增长速度比 BMD 快两倍。在 DMD 中,cMB 与功能和力量降低有关。使用 cMB 的肌肉病理学超声测量是一种敏感和客观的定量技术,用于确定肌营养不良症中肌肉病理学的严重程度。需要进行纵向研究以确定该指标对随时间变化的病理学变化的敏感性。