Department of Neurology and Neuromuscular Diseases, CHU La Timone, 264 rue Saint-Pierre, 13385, Marseille, France.
Muscle Nerve. 2014 Apr;49(4):551-7. doi: 10.1002/mus.23957. Epub 2014 Feb 26.
We investigated the functional and structural integrity of the corticospinal tract (CST) using diffusion tensor imaging (DTI) and the triple stimulation technique (TST) in patients with amyotrophic lateral sclerosis (ALS).
Fourteen patients with ALS, 13 healthy controls (HCs), and 6 patients with lower motor neuron (LMN) syndrome underwent DTI and TST.
The mean diffusivity was higher in ALS patients than HCs (P < 0.01). The TST ratio was lower in ALS patients compared with HCs (P < 0.001) and in LMN patients compared with HCs (P < 0.05). The increase in the mean diffusivity was correlated with the decrease in the TST ratio (P < 0.01).
Significant correlations exist between the DTI and TST results, indicating both structural and functional involvement of the CST in patients with ALS.
我们使用弥散张量成像(DTI)和三重刺激技术(TST)研究了肌萎缩侧索硬化症(ALS)患者皮质脊髓束(CST)的功能和结构完整性。
14 名 ALS 患者、13 名健康对照者(HCs)和 6 名运动神经元下(LMN)综合征患者接受了 DTI 和 TST 检查。
ALS 患者的平均弥散度高于 HCs(P < 0.01)。与 HCs 相比,ALS 患者的 TST 比值较低(P < 0.001),与 HCs 相比,LMN 患者的 TST 比值也较低(P < 0.05)。平均弥散度的增加与 TST 比值的降低呈显著相关(P < 0.01)。
DTI 和 TST 结果之间存在显著相关性,表明 ALS 患者 CST 既有结构受累也有功能受累。