1) At the end of this lecture the participant should be able to recognize the variable appearance of parenchymal and subarachnoid hemorrhage on CT/CTA and MRI/MRA exams. 2) In addition, the learner should be able to provide a differential diagnosis based on clinical presentation, imaging characteristics and location. 3) The clinical examples will also include cases that allow the learner to become familiar with the complications of non traumatic intracranial hemorrhage.
The presentation begins with an overview of the common causes of non-traumatic intracranial hemorrhage. The pathophysiology of hypertensive hemorrhage is discussed followed by a series of examples demonstrating the classic locations and appearance on CT and MR imaging. The clinical and radiological features of aneurysmal and non-aneurysmal subarachnoid hemorrhage will be reviewed including examples of vasospasm. Morphological and flow features that contribute to aneurysm rupture will be presented. Vascular malformations are discussed using clinical cases that demonstrate the risk factors associated with AVM hemorrhage which include aneurysms on the feeding arteries, intra-nidal aneurysms, supply from perforating arteries, exclusively deep venous drainage and venous outflow obstruction/thrombosis. Advanced accelerated high resolution 4D MRA techniques are introduced that use radial imaging and constrained reconstruction to provide contrast enhanced time resolved whole brain MRA images which facilitate the diagnosis and characterization of intracranial hemorrhage. To complete the review, additional examples of hemorrhage from vasculitis, amyloid angiopathy and neoplastic diseases are presented.
Turski, P,
Non-traumatic CNS Hemorrhage. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/13011790.html
