Taneichi H, Abumi K, Kaneda K, Terae S
Department of Orthopaedic Surgery, School of Medicine, University of Hokkaido, Sapporo, Japan.
J Spinal Disord. 1994 Apr;7(2):153-60. doi: 10.1097/00002517-199407020-00009.
Gd-DTPA-enhanced magnetic resonance (MR) imaging can depict not only the morphology but also the pathological changes of a nerve root compressed by herniated disc. Enhanced MR imaging was performed on 115 patients treated surgically for lumbar disc herniation. Nerve root enhancement was seen in 39.1% of the patients preoperatively and in 58.7% postoperatively. Preoperative root enhancement reflects the radicular pain intensity rather than the degree of neurological deficits, whereas postoperative enhancement did not correlate with the radicular symptoms. Nerve root enhancement represents an intraneural edema in the affected nerve root. Enhanced MR imaging is a potential method for the identification of an affected nerve root in patients with a discrepancy between the level of disc herniation and neurological manifestations.
钆喷酸葡胺增强磁共振（MR）成像不仅可以描绘出椎间盘突出压迫神经根的形态，还能显示其病理变化。对115例接受腰椎间盘突出症手术治疗的患者进行了增强MR成像检查。术前39.1%的患者可见神经根强化，术后为58.7%。术前神经根强化反映的是神经根性疼痛强度而非神经功能缺损程度，而术后强化与神经根症状无关。神经根强化代表受累神经根内的水肿。增强MR成像对于椎间盘突出水平与神经表现不一致的患者来说，是一种识别受累神经根的潜在方法。
