Ultrasonography: This method employs sound waves to acquire shots of the inside of the body. Sedation isn't needed. The risk of perioperative morbidity and mortality will increase with increasing Spetzler-Martin grade. This grading technique doesn't necessarily correlate with hazards connected to endovascular embolization or stereotactic radiosurgery. Having said that, Spetzler-Martin https://www.sgvascularctr.com/service/vascular-malformations/