Abstract:ObjectiveTo evaluate the clinical value of neuronavigation and vascular fusion imaging technique in microsurgical resection of paragittal sinus meningiomas.Methods31 cases of meningioma involving sagittal sinus were treated microsurgically with assistance of neuronavigation and vascular fusion imaging in our hospital from Jan. 2016 to Aug. 2018. The surgical effect and prognosis were analyzed retrospectively.ResultsOf the 31 cases, Simpson grade 1 resection was achieved in 16 cases (51.61%), grade 2 in 10 (32.26%), grade 3 in 4 (12.91%) and grade 4 in 1 case (3.22%). Limb numbness was improved in 12 cases, not improved in 2, and exacerbated in 2. Headache disappeared in 5 cases and sustained in 2. Epilepsy got remitted completely in 2 cases, and controlled with continuous oral antiepileptic drug in 1. Postoperative pathology revealed grade I in all the 16 cases with Simpson grade 1 resection, grade II in 2 and grade I in 8 of the 10 cases with Simpson grade 2 resection, grade II in 3 and grade III in 1 of the 4 cases with Simpson grade 3 resection, and grade III in the one with Simpson grade 4 resection, according to the World Health Organization (WHO) grading system. All patients without Simpson grade 1 resection received postoperative routine radiotherapy. The median followup time was 15.6 months, and recurrence occurred in one case of WHO grade II. Reoperation was performed to this patient and no recurrence was found after 4 months of followup.ConclusionWith advantages of low recurrence rate via resecting tumor and its basal dura, guiding the preoperative plan and the incision range, grasping the characteristics of sagittal sinus at the base of the tumor, and improving safety via providing positive reference for the removal of tumor attaching the sagittal sinus, neuronavigation and vascular fusion imaging technique has good values of popularization and application.
