J Stroke.
2016 Jan;18(1):38-49. 10.5853/jos.2015.01410.
Silent New Brain Lesions: Innocent Bystander or Guilty Party?
- Affiliations
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- 1Department of Neurology, Asan Medical Center, University of Ulsan, College of Medicine, Seoul, Korea. dwkang@amc.seoul.kr
- 2Department of Neurology, Dell Medical School, University of Texas at Austin, Austin, TX, USA.
- KMID: 2223634
- DOI: http://doi.org/10.5853/jos.2015.01410
Abstract
- With the advances in magnetic resonance imaging, previously unrecognized small brain lesions, which are mostly asymptomatic, have been increasingly detected. Diffusion-weighted imaging can identify small ischemic strokes, while gradient echo T2* imaging and susceptibility-weighted imaging can reveal tiny hemorrhagic strokes (microbleeds). In this article, we review silent brain lesions appearing soon after acute stroke events, including silent new ischemic lesions and microbleeds appearing 1) after acute ischemic stroke and 2) after acute intracerebral hemorrhage. Moreover, we briefly discuss the clinical implications of these silent new brain lesions.
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