Curnes J T, Laster D W, Koubek T D, Moody D M, Ball M R, Witcofski R L
AJNR Am J Neuroradiol. 1986 Jul-Aug;7(4):617-22.
Six patients, 6 to 13 years old, with corpus callosal abnormalities diagnosed by electroencephalography or CT were studied with a 0.15 T MR imager to determine the effectiveness of MRI in evaluating midline anomalies. Spin-echo images in the coronal, axial, and sagittal planes were obtained in two patients with Aicardi's syndrome and partial agenesis of the corpus callosum, in one patient with Dandy-Walker syndrome, and in two patients with septooptic dysplasia. Inversion recovery and spin-echo images were obtained in one patient with lipoma of the corpus callosum. Partial agenesis of the corpus callosum was seen in septooptic dysplasia, an association that has not been reported previously in the radiologic literature. Direct sagittal and coronal MRI provided better anatomic visualization of the brain and ventricles than did reformatted CT. T1-weighted images are sufficient to diagnose and delineate the extent of midline cerebral abnormalities. The unique capability of direct sagittal imaging makes MRI the best procedure for evaluating corpus callosal and other midline abnormalities.
对6例年龄在6至13岁、经脑电图或CT诊断为胼胝体异常的患者，使用0.15T磁共振成像仪进行研究，以确定MRI在评估中线异常方面的有效性。对2例患有艾卡迪综合征和胼胝体部分发育不全的患者、1例患有丹迪-沃克综合征的患者以及2例患有视隔发育不良的患者，获取了冠状面、轴位面和矢状面的自旋回波图像。对1例患有胼胝体脂肪瘤的患者，获取了反转恢复和自旋回波图像。在视隔发育不良中发现了胼胝体部分发育不全，这种关联在放射学文献中此前尚未见报道。直接矢状面和冠状面MRI比重组CT能更好地对大脑和脑室进行解剖学可视化。T1加权图像足以诊断并描绘中线脑异常的范围。直接矢状面成像的独特能力使MRI成为评估胼胝体及其他中线异常的最佳检查方法。
