Transcranial Transvenous Embolization with Onyx through a Steerable Catheter for a Dural Arteriovenous Fistula of the Isolated Superior Sagittal Sinus: A Technical Case Report. - Kidani N; Akino Y; Tsuchie R; Tomita Y; Muraoka K; Hirotsune N (NMC case report journal, 2026)