摘要
【摘要】 目的 探讨分析 3.0 T磁共振动态增强扫描在垂体微腺瘤中的表现特征及应用价值。方法 系统回顾分析 38例临床明确诊断垂体微腺瘤患者， 均使用 3.0 T磁共振进行平扫、动态增强扫描以及延迟扫描， 以总结 3.0 T磁共振动态增强扫描在垂体微腺瘤中的表现特征及应用价值。结果 38例垂体微腺瘤经平扫检出 25例， 检出率为 65.8%， 经动态增强扫描检出 36例， 检出率为 94.7%， 其中 11例为磁共振平扫正常患者。动态增强扫描表现为正常垂体组织的强化信号高于肿瘤区， 并且二者之间存在较为清晰的边界。延时扫描， 垂体微腺瘤组织可有缓慢强化的表现， 其中 7例延时扫描见肿瘤区信号增强， 但仍低于正常垂体组织， 4例延时扫描肿瘤区信号高于正常垂体组织。结论 3.0 T磁共振动态增强扫描在垂体微腺瘤的诊断中具有特征性的检出信号， 同时能够显著的提高垂体微腺瘤的检出率， 提高诊断的可靠性， 采用磁共振动态增强扫描可作为诊断垂体微腺瘤的常规检查手段。
【关键词】 磁共振成像；动态增强扫描；垂体微腺瘤
[Abstract] Objective To explore the characteristics and application value of dynamic contrast-enhanced MRI in pituitary microadenoma. Methods 38 patients with pituitary microadenoma were analyzed systematically. All patients were scanned with 3.0T MR, including plain scan, dynamic contrast-enhanced scan and delayed scan. Results 25 of 38 pituitary microadenomas were detected by plain scan, the detection rate was 65.8%, 36 by dynamic contrast-enhanced scan, the detection rate was 94.7%, 11 of them were normal patients. Dynamic enhanced scanning showed that the signal intensity of normal pituitary tissue was higher than that of tumor area, and there was a clear boundary between them. Delayed scanning showed that pituitary microadenoma tissue could be enhanced slowly. In 7 cases, delayed scanning showed signal enhancement in tumor area, but it was still lower than that in normal pituitary tissue, and in 4 cases, delayed scanning signal in tumor area was higher than that in normal pituitary tissue. Conclusion 3.0T dynamic contrast-enhanced MRI has the characteristic detection signal in the diagnosis of pituitary microadenoma, and can significantly improve the detection rate of pituitary microadenoma, improve the reliability of diagnosis. Using dynamic contrast-enhanced MRI scan can be used as a regular inspection method for the diagnosis of pituitary microadenoma.
出版日期
2020年01月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
