对比增强磁共振成像中脂肪抑制技术在脊柱肿瘤性和炎症性疾病中的评估
Evaluation of fat suppression in contrast-enhanced MR of neoplastic and inflammatory spine disease.
作者信息
Georgy B A, Hesselink J R
机构信息
Department of Radiology, School of Medicine, University of California, San Diego 92103-8756.
出版信息
AJNR Am J Neuroradiol. 1994 Mar;15(3):409-17.
PURPOSE
To determine the benefit of fat suppression in conjunction with gadolinium enhancement for evaluating neoplastic and inflammatory diseases of the spine.
METHODS
Contrast-enhanced T1-weighted images were compared with the corresponding contrast-enhanced T1-weighted images with fat suppression in 14 patients with various neoplastic and inflammatory spine diseases.
RESULTS
Contrast-enhanced T1-weighted images with fat suppression showed enhancing lesions in all cases of vertebral disease (five cases), but in one case some metastases did not enhance. Paravertebral (nine lesions), epidural (seven lesions), and intradural-extramedullary (six lesions) were delineated better with contrast-enhanced fat suppression. In the 14 cases (29 lesions), nine lesions were seen only on contrast-enhanced images with fat suppression. Integrity of the vertebral end plates was assessed more accurately on fat-suppressed images.
CONCLUSION
Although noncontrast T1-weighted images are sufficient to screen for vertebral disease, contrast-enhanced images with fat suppression may detect additional lesions. Fat suppression should be used in conjunction with gadolinium for evaluating epidural, paravertebral, and intradural-extramedullary spinal lesions.
目的
确定脂肪抑制联合钆增强在评估脊柱肿瘤性和炎症性疾病中的作用。
方法
对14例患有各种脊柱肿瘤性和炎症性疾病的患者，将对比增强T1加权图像与相应的脂肪抑制对比增强T1加权图像进行比较。
结果
脂肪抑制对比增强T1加权图像在所有椎体疾病病例（5例）中均显示强化病变，但有1例转移瘤未强化。椎旁（9个病变）、硬膜外（7个病变）和硬膜下髓外（6个病变）病变在脂肪抑制对比增强图像上显示更清晰。在14例（29个病变）中，9个病变仅在脂肪抑制对比增强图像上可见。在脂肪抑制图像上能更准确地评估椎体终板的完整性。
结论
虽然非增强T1加权图像足以筛查椎体疾病，但脂肪抑制对比增强图像可能发现更多病变。在评估硬膜外、椎旁和硬膜下髓外脊柱病变时，应将脂肪抑制与钆联合使用。
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