Abstract:
:A dissecting aneurysm of the vertebral artery occurred in a 38-year-old male presenting with ischemic attacks. Vertebral angiography revealed irregular narrowing and dilatation of the right vertebral artery, and retention of the contrast medium. Routine T1-weighted magnetic resonance (MR) imaging demonstrated signal voids compatible with a patent but narrowed vertebral lumen surrounded by three intensity components at the abnormality location identified on the vertebral angiograms. Dynamic MR imaging demonstrated strong enhancement of these components on the early images. These findings were consistent with the false lumen of the dissecting aneurysm. The different signal intensities were thought to reflect the blood flow rate.
journal_name
Neurol Med Chir (Tokyo)journal_title
Neurologia medico-chirurgicaauthors
Hamada J,Sato K,Nagahiro S,Ushio Ydoi
10.2176/nmc.32.698keywords:
subject
Has Abstractpub_date
1992-08-01 00:00:00pages
698-700issue
9eissn
0470-8105issn
1349-8029pii
JST.Journalarchive/nmc1959/32.698journal_volume
32pub_type
杂志文章abstract::A novel method for the simulation of the clipping position for cerebral aneurysms based on three-dimensional computed tomography (3D CT) angiography was evaluated. Rotating the regional 3D CT angiography images including the aneurysm provided the virtual intraoperative views of 36 cerebral aneurysms that were eligible...
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