4 Ischemia
10.1055/b-0036-141868 4 Ischemia Introduction In younger patients, the etiologies for cerebral infarction are many and varied, in distinction to older adults ( Fig. 4.1 ). Leading causes include cardiac and…
1 Technologic Innovations in MR and CT
10.1055/b-0036-141865 1 Technologic Innovations in MR and CT Introduction Both CT and MR have made tremendous technologic advances since their clinical introduction, regarding not only sensitivity and spatial resolution, but…
5 Aneurysms
10.1055/b-0036-141869 5 Aneurysms Introduction By definition, an aneurysm is an abnormal dilatation, typically saccular or fusiform in shape, of an artery. Intracranial aneurysms are thought to result from hemodynamic stress,…
6 Vascular Malformations and Other Vascular Lesions
10.1055/b-0036-141870 6 Vascular Malformations and Other Vascular Lesions Arteriovenous Malformation An arteriovenous malformation (AVM) consists of a nidus (tangle) of tightly packed dilated, tortuous arteries and veins, without an intervening…
2 Normal Anatomy
10.1055/b-0036-141866 2 Normal Anatomy Brain Parenchyma The major divisions of the human brain include the cerebrum, cerebellum, and brainstem. The cerebrum is further subdivided into the frontal, parietal, occipital, and…
3 Hemorrhage
10.1055/b-0036-141867 3 Hemorrhage Parenchymal Hemorrhage Hemorrhage has a specific but varied appearance on MR, dependent on time frame. The appearance is much more straightforward on CT. In normotensive young adults,…
