Intra-operative ultrasound (IOUS) value in cases of AVM and cavernoma excision: single-center experience

Abstract Objective The aim of the study is to use ultrasound to get maximal lesion resection without doing harm to the brain tissue in the absence of neuronavigation system in neurovascular cases as AVM and cavernoma. Methods The study is held in Mansoura University Hospitals, Department of Neurosurgery. Two different cases (AVM and cavernoma) were operated, and IOUS was used to assess its value during the surgery. Postoperatively the patients are followed up clinically and radiologically. Results In 2 different parenchymal lesions: AVM and cavernoma, IOUS was valuable in accurate localization of the lesions and the related vascularity specially in AVM case. It also helped to evaluate the extent of resection and confirm total excision. It also helped to determine the site of cortical incision and so to minimize brain tissue manipulation to prevent development of postoperative neurological deficit. Conclusion IOUS can be very helpful in cases of parenchymal neurovascular lesions such as AVM and cavernoma