title: Compartments in arteriovenous malformation nidi demonstrated with rotational three-dimensional digital subtraction angiography by using selective microcatheterization. Report of three cases.
abstract: Although in several histological studies of arteriovenous malformation (AVM) nidi the presence of compartments has been documented, no clinical study has been published. The present study was conducted to determine the presence of nidus compartments in clinical cases by using a new radiographic method. Two patients with unruptured and one with a ruptured AVM (all Spetzler-Martin Grade III) were studied. A microcatheter was superselectively introduced into each of two or three feeding arteries of the AVMs under three-dimensional (3D) angiographic guidance to obtain 3D images of the nidus by using rotational digital subtraction angiography. On 3D images the different feeding arteries were found to be independent from one another, which allowed the authors to confirm the presence of compartments. On the other hand, separate feeding arteries often had a common draining vessel. Compartments in AVM nidi were demonstrated by a novel rotational 3D angiographic procedure by using superselective microcatheterization, which should be useful for designing treatment strategies for large and complex AVMs.
authors: Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan.
authors: Yukinari
authors: Y
authors: Kakizawa
authors: Hisashi
authors: H
authors: Nagashima
authors: Fusakazu
authors: F
authors: Oya
authors: Kiyoshi
authors: K
authors: Ito
authors: Yuichiro
authors: Y
authors: Tanaka
authors: Kazuhiro
authors: K
authors: Hongo
authors: Shigeaki
authors: S
authors: Kobayashi
mesh_terms: D015901:Angiography, Digital Subtraction / Q000379:methods*; D001825:Body Fluid Compartments / Q000502:physiology*; D002404:Catheterization / Q000379:methods*; D002560:Cerebrovascular Circulation / Q000502:physiology; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000503:physiopathology; D009904:Optical Rotation