| 王霄英,杨德文,蒋学祥,肖江喜,王继琛,高玉洁.MRI动态增强扫描对垂体微腺瘤的诊断意义[J].中国医学影像技术,2000,16(4):262~264 |
| MRI动态增强扫描对垂体微腺瘤的诊断意义 |
| The Implication of Dynamic Contrast Enhancement MRI to the Evaluation of Pituitary Microadenomas |
| 投稿时间：2000-01-05 |
| DOI： |
| 中文关键词: 垂体肿瘤 磁共振成像 影像增强 |
| 英文关键词:Pituitary neoplasms Magnetic resonance imaging Image enhancement |
| 基金项目: |
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| 中文摘要: |
| 目的 评价MRI 动态增强扫描探查垂体微腺瘤的效果。方法 研究38 例垂体微腺瘤患者的平扫、GdDTPA 动态增强扫描及延迟的常规增强扫描的效果。结果 动态和常规增强扫描比较,有9 例显示相同;23 例动态比常规增强效果好;6 例常规比动态增强效果好。11 例只有动态增强能显示;2 例只有常规增强能显示。结论 动态增强扫描可以提高垂体微腺瘤的检出率,和常规增强扫描结合可以提高诊断敏感性。 |
| 英文摘要: |
| Objective To evaluate the effectiveness of dynamic contrast enhancement MRI in the diagnosis of pituitary
microadenomas. Methods 38 patients with pituitary microadenoma were stuided by means of Gd-DTPA-enhanced dynamic MRI and were also scanned with conventional spin echo sequences before and after dynamic scanning. Results The dynamic sequence was judged to be better than the standard enhanced sequence for depicting microadenomas in 23 patients ,
and 6 lesions were better demonstrated in the conventional contrast enhancement sequence. Lesions were seen equally well
on the standard and dynamci sequences in 9 cases. The lesions were identified only on the dynamic sequence in 11 patients ,
whereas there was 2 cases in which lesions were detected only on the standard postcontrast sequence. Conclusion Dynamic
MRI improved lesion detection over standard sequences after contrast infusion. Both sequences are necessary , and combined
study of the sequences can improve the detection sensitivity. |
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