Department of Physical Therapy, Yeungnam College of Science & Technology, Daegu, Republic of Korea.
J Head Trauma Rehabil. 2012 Mar-Apr;27(2):154-8. doi: 10.1097/HTR.0b013e31820fc480.
: Little is known about the usefulness and findings of brain herniation on diffusion tensor tractography (DTT). Using DTT, we demonstrated neural tract injuries in 2 patients who showed subfalcine and trasntentorial herniations after subdural hematoma resulting from motor vehicle accident.
: Two patients and 6 age- and sex-matched, healthy volunteers were recruited for this study.
: An inpatient rehabilitation unit.
: Diffusion tensor tractography for the patients was performed 5 weeks after onset.
: Diffusion tensor tractography of patient 1 showed complete injury of both cingulums at or around the rostrum of the corpus callosum, the fornix at the anterior and posterior body, and both corticospinal tracts at the pons. In addition, partial injury of both somatosensory tracts at the midbrain was also observed. Patient 2 showed complete injury of both cingulums above the body of the corpus callosum, the fornix at the anterior and posterior body, and right corticospinal tracts at the pons level and partial injury of the right somatosensory tract. We found that the fractional anisotropy values of all neural tracts, except fornix, in both patients and left somatosensory tract in patient 2 and voxel number for left somatosensory tract in patient 2 were decreased 2 SDs below that of normal controls.
: We determined that DTT would be a good technique for use in the detection of underlying lesions in patients with brain herniation.
关于脑疝在弥散张量轨迹（DTT）中的有用性和发现，目前知之甚少。我们使用 DTT 展示了 2 例因机动车事故导致硬膜下血肿后出现镰状和经天幕脑疝的患者的神经束损伤。
本研究纳入了 2 例患者和 6 名年龄和性别匹配的健康志愿者。
住院康复病房。
患者在发病后 5 周进行弥散张量轨迹检查。
患者 1 的弥散张量轨迹显示在胼胝体嘴部或附近的两条扣带回、穹窿的前体和后体以及桥脑的双侧皮质脊髓束完全损伤。此外，还观察到中脑的双侧体感束部分损伤。患者 2 显示在胼胝体体部以上的两条扣带回、穹窿的前体和后体以及桥脑水平的右侧皮质脊髓束完全损伤，以及右侧体感束部分损伤。我们发现，除了穹窿之外，所有患者的神经束以及患者 2 的右侧体感束的各向异性分数值均降低了 2 个标准差，低于正常对照组。
我们确定 DTT 是检测脑疝患者潜在病变的一种很好的技术。
