Bradley W G
Department of Radiology, University of California, Irvine College of Medicine, USA.
Magn Reson Imaging Clin N Am. 1999 Aug;7(3):439-57, vii.
Gadolinium chelates are often useful in sorting out different causes of lower back pain and lumbar radiculopathy. Gadolinium is particularly useful, for example, in distinguishing recurrent disc herniation from epidural scarring in the postoperative spine. Enhancement can demonstrate nerve roots in viral or inflammatory conditions (e.g., cytomegalovirus or Guillain-Barré syndrome), and define compression resulting from herniated discs or spiral stenoses. Gadolinium enhancement also is useful in diagnosing tumors in the intramedullary space (e.g., conus ependymoma), in the extramedullary space (e.g., drop metastases, meningioma, schwannoma), and extradural space (e.g., extraosseus extension of osseus metastases or infections).
钆螯合物在区分下背痛和腰椎神经根病的不同病因方面通常很有用。例如，钆在鉴别术后脊柱复发性椎间盘突出与硬膜外瘢痕形成方面特别有用。强化可显示病毒或炎症性疾病（如巨细胞病毒或格林-巴利综合征）中的神经根，并确定椎间盘突出或椎管狭窄导致的压迫。钆强化在诊断髓内（如圆锥室管膜瘤）、髓外（如转移性肿瘤、脑膜瘤、神经鞘瘤）和硬膜外（如骨转移瘤或感染的骨外扩展）空间的肿瘤方面也很有用。
