垂体腺瘤侵袭海绵窦MRI影像与手术病理的对比研究

Compared investigation of MRI finding and surgery of Cavernous sinus Invasion by Pituitary Adenomas

目的评估垂体腺瘤侵袭海绵窦MRI影像术前的诊断价值。方法应用Photoshope软件在经海绵窦冠状位颈内动脉C2、C4段切面间进行划线标记,肿瘤生长超越外侧壁连线视为海绵窦侵犯,达外侧壁连线但未超越视为海绵窦可疑侵犯,达中心点连线视为海绵窦无侵犯,并与手术对照及结合脑膜病理活检。结果MRI视为海绵窦侵犯的手术证实符合率为及阳性预告值(PV+)均为95%,MRI视为海绵窦无侵犯的手术证实符合率及阴性预告值(PV-)均为100%。结论MRI术前评估垂体腺瘤侵袭海绵窦是一种准确可靠的方法。

Objective To investigate the diagnosis value of preoperative MRI for pituitary adenoma invading cavernous sinus. Methods To imply Photoshope software, the base line was designed by though the C3 and C4 department of internal carotid artery in the frontal MRI of cavernous sinus. The tumor extension beyond laterally wall was considered to invade cavernous sinus, the tumor extension laterally wall was suspiciously considered to invade cavernous siuns, the tumor didn＇t invade cavernous sinus if the tumor extension the center of the base line. The conceive was confirmed by surgery. Results MRI shows the tumor invaded cavernous sinus, the positive value and accurately rate were 95% by surgery. MRI shows the tumor wasn＇t extension cavernous sinus, the negative value and accurately rate were 100% by surgery. Conclusion The evaluation of preoperative MRI is accurately method.