Cerebrovascular Development and Evolution
Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 7 Fig. 8 In Figs. 9 and 10, the spinal angiographic correlation can be visualized in vivo…
Imaging of Spontaneous Nontraumatic Intracerebral Hemorrhage
Location Frequency (%) Hypertension 36 Aneurysm 36 Arteriovenous malformation (AVM) 11 Others 17 Hemorrhagic strokes represent 10–15 % of all strokes and are characterized by the sudden onset of a…
Spinal Cord Infarction and Differential Diagnosis
Cervical spine Vertebral arteries Deep and ascending cervical arteries Thoracic and upper lumbar spine Subclavian arteries via deep cervical artery T1 and T2 segmental/intercostal arteries Aorta Thoracic segmental arteries (intercostal)…
Miscellaneous Vascular Malformations (Cavernous Malformations, Developmental Venous Anomaly, Capillary Telangiectasia, Sinus Pericranii)
Fig. 1 Right temporal lobe cavernous malformation. (a) T1-weighted MR. (b) Postcontrast T1-weighted MR. (c) FLAIR image. (d) Gradient-echo (GRE) T2*-weighted MR. (e) Diffusion-weighted MR. The lesion presents the characteristic…
Imaging of the Pathology of the Vertebral Arteries
Fig. 1 Embryology of the vertebral arteries. The vertebral arteries develop from longitudinal plexiform anastomoses of the first six cervical intersegmental arteries. The seventh cervical intersegmental arteries develop into the…
Brain Death Imaging
1. Coma (excluding spinal cord-mediated reflexes) 2. Absence of brain stem reflexes (a) Pupils mid-position or greater and absent pupillary light reflex (fixed dilated pupils) (b) Corneal (c) Gag/pharyngeal (d)…
Moyamoya Disease (Spontaneous Occlusion of the Circle of Willis)
Fig. 1 Conventional digital subtraction angiography of the left internal carotid arteries of a pediatric moyamoya disease patient. Anterior-posterior view (a–c) and lateral view (d–f) show steno-occlusive change of the…
Sickle Cell Disease and Stroke
Fig. 1 A 38-year-old woman with SCD, presenting with altered mental status. (a) Axial FLAIR image shows multiple high signal intensity lesions of the bilateral periventricular white matter (arrows). (b,…
Postop Evaluation of Aneurysms (Including Vasospasm)
Fig. 1 Aneurysm clip. The CT image shows the spring (arrow) and blade (arrowhead) components of a titanium aneurysm clip The advent of dual-energy CT (DECT) imaging in conjunction with…
Patterns of Ischemic Stroke: From Lacunar to Territorial to Multiple Embolic to Watershed Hypotensive
Type of infarct Clinical description Lacunar Acute stroke that includes one of the major recognized lacunar syndromes: (1) pure motor, (2) pure sensory, (3) sensorimotor, (4) ataxic hemiparesis, (5) dysarthria…
