Williams A L, Haughton V M, Pojunas K W, Daniels D L, Kilgore D P
AJR Am J Roentgenol. 1987 Jul;149(1):159-64. doi: 10.2214/ajr.149.1.159.
To determine the MR criteria that are effective for differentiating intramedullary neoplasms from syringo- or hydromyelia, we reviewed MR scans made on prototype and commercial imagers of 33 patients with surgically confirmed cord abnormalities, including nine intramedullary neoplasms and 20 cysts (syringo- or hydromyelia). Two radiologists who did not know the clinical and radiologic diagnoses were asked to evaluate the scans with respect to cord expansion, distinctness of the disease margin, homogeneity, and signal intensity. These observations were correlated with the proved diagnoses. The combination of distinct margins and uniform signal intensity equal to that of CSF correlated consistently (88%) with spinal cord cysts. Other combinations were less reliable for diagnosing a cyst or tumor.
为确定能有效区分髓内肿瘤与空洞症或积水性脊髓炎的磁共振（MR）标准，我们回顾了33例经手术证实存在脊髓异常患者在原型成像仪和商用成像仪上的MR扫描结果，其中包括9例髓内肿瘤和20例囊肿（空洞症或积水性脊髓炎）。两名不知临床和放射学诊断结果的放射科医生被要求评估扫描结果，内容涉及脊髓扩张、病变边缘清晰度、均匀性和信号强度。这些观察结果与已证实的诊断结果相关联。边缘清晰且信号强度与脑脊液一致的组合与脊髓囊肿始终具有相关性（88%）。其他组合在诊断囊肿或肿瘤时可靠性较低。
