Application And Clinical Value Of CTA In The Microsurgery Of Sphenoid Ridge Meningiomas

Background: It is a great challenge to resect the sphenoid ridge meningiomas totallywithout any complication. Hence, we explored the clinical value of CT angiography (CTA)in the microsurgery of sphenoid ridge meningiomas, and disscussed the microsurgicaltechnique to protect important adjacent tissures, such as blood vessels, to decreasepostoperative complications and obtain a higher total resection rate in microneusurgery.Methods: Ten patiens with sphenoid ridge meningiomas, admitted to Tongji hospitalfrom January2011to January2013and confirmed by CT and MRI, were examined withCTA to observe the relationship of tumor and important tissues, such as adjacent bloodvessels, then determined the surgical plan, and the main points of microneurosurgerytechnique were discussed.Results: CTA provided clear three-dimensional images of the sphenoid ridgemeningiomas and its relations with the adjacent vessels. Total removal was achieved in8cases (Simpson grade â… , â…¡), Simpson grade â…¢ in1case, and Simpson grade â…£ in1case.No mortality was observed, and all of symptoms were improved in each case.Conclusion: The CTA, being able to provide images of the sphenoid ridgemeningiomas, and demonstrating its relations with adjacent vessels, can supply the vitalinformation to choose the rational surgical plan and provide the useful messages, which hasa great value in preoperative evaluation of the sphenoid ridge meningiomas. And inaddition, adopting suitable microsurgical strategy and the careful protection of importantvessels were very key points to improve the therapeutic efficacy of the sphenoid ridgemeningiomas.