Value of diffusion tensor imaging and tractography in unilateral lumbar disc prolapse

Abstract Background Conventional MR imaging is not enough for evaluation of symptomatic foraminal stenosis, because there high incidence false-positive results in asymptomatic elderly patients. cannot quantitatively assess the severity nerve lesion. DTI a non-invasive way to effectively trace fiber bundle and evaluate injury. with tracking may describe abnormalities beyond resolution conventional techniques. The aim this work was compare between mean values diffusion parameters such as fractional anisotropy apparent coefficient compressed lumbar spinal roots contralateral normal roots. Correlate these neurological symptoms. This prospective study that conducted on 50 patients unilateral posterolateral disc prolapse at university hospital. They were investigated tensor tractography 1.5-T MR. changes nerves relationship side effects using Japanese Orthopedic Association score visual analogue scale investigated. Results significantly lower ( p ≤ 0.001), higher 0.001) than intact nerves. There strong correlations symptoms assessed scale. Conclusion In prolapse, radicular are affected comparison healthy affection correlated degree provide clinically relevant information