Viaño J, García Segura J M, Izal E, Martínez V, López Pino M A
Servicio de Resonancia Magnética, Hospital Nuestra Seńora del Rosario, Madrid.
Neurologia. 1996 Dec;11 Suppl 4:33-52.
The objective of magnetic resonance neuroimaging is to define the structural changes responsible for epileptogenic lesions and to rule out the presence of dual pathology when partial epileptic seizures are being studied. To this end, the individualization and optimization of protocols and sequences is indispensable. Structural images must be complemented by clinical evidence and function studies (EEG, SPECT, PET) in order to determine whether the structural lesion is responsible for the seizure and might eventually be excised. Spectroscopy provides biochemical information that is somewhat comparable to that obtained by biopsy of the epileptogenic zone. Spectroscopic images in the near future will provide clear "blind" views of these zones. Functional magnetic resonance images will presumably be of great help in the management of these patients.
磁共振神经成像的目的是确定导致致痫性病变的结构变化,并在研究部分性癫痫发作时排除双重病理情况的存在。为此,方案和序列的个体化及优化是必不可少的。结构图像必须辅以临床证据和功能研究(脑电图、单光子发射计算机断层扫描、正电子发射断层扫描),以确定结构病变是否是癫痫发作的病因,并最终确定是否可以切除。光谱学提供的生化信息在某种程度上与通过致痫区活检获得的信息相当。在不久的将来,光谱图像将提供这些区域清晰的“盲区”视图。功能磁共振图像可能对这些患者的管理有很大帮助。