Dorsal extensions of the fastigium cerebelli: an anatomical study using magnetic resonance imaging.
Background and purpose: The fastigium cerebelli is an important topographical landmark for neurosurgeons and radiologists. However, few studies have characterized the morphology of the fastigium cerebelli. We aimed to investigate the fastigium cerebelli using postmortem specimens and magnetic resona...
| Published in: | Surgical & Radiologic Anatomy Vol. 40; no. 7; pp. 829 - 835 |
|---|---|
| Main Authors: | , , , , |
| Format: | Journal Article |
| Published: |
Springer Nature
Jul2018
|
| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=130103832&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 130103832 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 09301038 O1L jtl: Surgical & Radiologic Anatomy issn: 09301038 maglogo: N pubinfo: dt: Jul2018 vid: 40 iid: 7 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 130103832 10.1007/s00276-018-2023-3 130103832 ppf: 829 ppct: 6 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Dorsal extensions of the fastigium cerebelli: an anatomical study using magnetic resonance imaging. aug: au: Tsutsumi, Satoshi Fernandez-Miranda, Juan Carlos Ishii, Hisato Ono, Hideo Yasumoto, Yukimasa affil: Department of Neurological Surgery, Juntendo University Urayasu Hospital, 2-1-1 Tomioka, 279-0021, Urayasu, Chiba, Japan sug: ab: Background and purpose: The fastigium cerebelli is an important topographical landmark for neurosurgeons and radiologists. However, few studies have characterized the morphology of the fastigium cerebelli. We aimed to investigate the fastigium cerebelli using postmortem specimens and magnetic resonance imaging (MRI) in vivo.Materials and methods: Three cadaveric brains were midsagittally sectioned for observing the fastigium cerebelli. Additionally, 66 outpatients underwent MRI, including sagittal T1-weighted imaging, axial T2-weighted imaging, and coronal constructive interference in steady-state (CISS) sequence.Results: In the cadaveric specimens, the fastigium cerebelli was observed as a beak-like dorsal protrusion of the fourth ventricle. Its inner surface was observed as a small fovea. On serial CISS images, the fastigium cerebelli consistently possessed a pair of triangular-shaped, dorsal extensions lying parasagittally along the nodule. These extensions were classified as symmetrical, right-side dominant, or left-side dominant. The symmetrical type was the most predominant and comprised 60.6% of the extensions, while the right-side dominant and left-side dominant types comprised 13.6 and 25.8%, respectively. In 91% of the 66 patients, the number of slices covering the entirety of the dorsal extensions were the same on both sides. The fastigial angle (θ) formed by lines tangent to the superior and inferior medullary velums varied widely.Conclusions: The fastigium cerebelli has a pair of dorsal extensions lying parasagittally along the nodule. Coronal CISS sequence is useful in delineating the fastigium cerebelli in vivo. pubtype: Academic Journal doctype: Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
|---|