Application of MRI and Dyna-CTA/3D-DSA images fusion to surgery for the parasellar tumors extending into both the middle and posterior cranial fossae
WEI Ke
YAO Guo-jie
GONG Jie
DU Wei
LI Cheng-cai
CHEN Da-yu
XIAO Bing-xiang
XIANG Wei-chu
MA Lian-ting
Abstract：Objective To explore the application of MRI and Dyna-CTA/3D-DSA images fusion to the surgery for the parasellar tumors extending into both the middle and posterior cranial fossae. Methods Of 5 cases of the parasellar tumors extending into both the middle and posterior cranial fossae, 2 were trigeminal schwannomas, 2 meningiomas and 1 cholesterol granuloma. MRI and Dyna-CTA/3D-DSA images fusion was performed before the operations in all the patients in order to understand the relationship of the tumors with the surrounding blood vessels. Of 5 patients, 3 underwent surgery trough subtemporal approach and 2 through extended pterional approach under electrophysiological monitoring. Results The tumors were totally resected in 5 patients, who were recovered well after the operation without the obvious complications except unrelief of the unilateral abduct nerve paralysis in 1 patient. Conclusions MRI and Dyna-CTA/3D-DSA images fusion before the operations, especially the dynamic image fusion, can figure out the relationship of the tumors with the surrounding blood vessels in the coronal, sagittal and axial views of fused images and therefore the operative damage to the blood vessels may be reduced and the operative safety may be enhanced.
Keywords：Parasellar tumorsMiddle and posterior cranial fossaeDyna-CTA/3D-DSAMRIThree-dimensional image fusion
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 385-388 )