[Evaluation of sinus meningiomas in the region of interest by high-resolution three dimensional contrast-enhanced magnetic resonance venography].

OBJECTIVE

To determine the value of high-resolution three dimensional contrast enhanced magnetic resonance venography (3D CE-MRV) in evaluating sinus meningiomas in the region of interest (ROI).

METHODS

Twenty patients with sinus meningiomas underwent 3D CE-MRV with ROI preoperatively (including 9 patients postoperatively). We observed the changes of venous sinus adjacent the tumor.

RESULTS

All patients received high-resolution image, the single acquisition time was about 11.4 s, and the voxel value was about 1.3 mm3. The images of 20 patients showed the change of the sinus clearly, 6 of which with integral sinus, 14 with sinus invaded at various degrees, including 5 with sinus occlusion and 9 with stenosis. CE-MRV also showed 4 patients with clear sinuses, 1 with narrow sinus, partial interruption, and 4 with sinus removed after the surgery.

CONCLUSION

Application of high-resolution 3D CE-MRV in ROI in sinus meningiomas may help obtain a series of high-resolution images in a short time, show the relationship between the tumor and venous sinus, display the degree of invasion of venous sinus clearly, provide information for the surgical treatment, and evaluate the change of sinus after the surgery.