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目的探讨MRI动态增强扫描技术在判定海绵窦内侧壁完整性诊断侵袭性垂体腺瘤中的应用价值。方法搜集经手术病理证实为垂体腺瘤且术前行MRI动态增强扫描的患者共132例,回顾性分析其影像学资料并进行对比性研究。结果利用MRI动态增强扫描技术判定海绵窦内侧壁完整性诊断侵袭性垂体腺瘤,其灵敏度、特异度、阳性预测值(PPV)、阴性预测值(NPV)和约登指数分别为100%、95.65%、86.36%、100%、0.957,总体上较传统评价指标更加准确和客观。结论 MRI动态增强扫描对垂体腺瘤侵袭海绵窦内侧壁的检出很敏感,是检出侵袭性垂体腺瘤极有价值的扫描方法。
Objective To investigate the value of MRI dynamic contrast-enhanced scanning in the diagnosis of invasive pituitary adenoma in the integrity of the medial cavernous wall. Methods A total of 132 patients with pathologically proven pituitary adenomas who undergone MRI dynamic contrast-enhanced scanning before surgery were retrospectively analyzed and their comparative imaging studies were performed. Results The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and Youden index of invasive pituitary adenoma were 100%, 95.65% , 86.36%, 100% and 0.957, respectively, which are more accurate and objective than traditional evaluation indexes. Conclusions MRI dynamic contrast-enhanced scanning is sensitive to the detection of pituitary adenoma invasion to the medial wall of cavernous sinus, which is a valuable scanning method for detecting invasive pituitary adenoma.