Abstract
SUMMARY: The use of intraoperative ultrasound (iUS) has progressed over the last 2 years in Ivory Coast, accessible and non-invasive becoming a standard tool in intracranial surgery. Our objective was to evaluate the usefulness of the use of intraoperative ultrasound in the excision of brain tumors MATERIAL AND METHODS: This is a prospective study of 6 patients who underwent intracranial surgery using the iUS GE and HUIDAMED guidance system, with a portable ultrasound probe. Ultrasound visibility was consistently according to the Mair classification. All procedures were done by the same surgeon. The postoperative image was correlated with a control MRI. RÉSULTATS: All pathologies were visible on iUS. The main pathologies were : 2 Glioblastomas, 2 Olygodendroglioma, 1 Convexity meningioma and 1 Pylocitic astrocytoma. On average, extra-axial tumors were identified more easily with clearer boundaries such as convexity meningioma classified MAIR 3. iUS made it possible to assess the quality of excision. The correlation coefficient was 1 in 5 cases and 0.96% in 1 case. CONCLUSION: iUS proved to be very sensitive for assessing the quality of excision for all types of pathologies, safe and precise for planning trajectories towards intraparenchymal lesions. The iUS is a versatile and practical tool ; it could improve safety and its use could be considered in intracranial surgery in areas inaccessible to navigation.