Article

Clinical applications of neuroimaging with susceptibility-weighted imaging.

Department of Radiology, Harper University Hospital, Detroit, Michigan, USA.
Journal of Magnetic Resonance Imaging (impact factor: 2.7). 11/2005; 22(4):439-50. DOI:10.1002/jmri.20404 pp.439-50
Source: PubMed

ABSTRACT Susceptibility-weighted imaging (SWI) consists of using both magnitude and phase images from a high-resolution, three-dimensional, fully velocity compensated gradient-echo sequence. Postprocessing is applied to the magnitude image by means of a phase mask to increase the conspicuity of the veins and other sources of susceptibility effects. This article gives a background of the SWI technique and describes its role in clinical neuroimaging. SWI is currently being tested in a number of centers worldwide as an emerging technique to improve the diagnosis of neurological trauma, brain neoplasms, and neurovascular diseases because of its ability to reveal vascular abnormalities and microbleeds.

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Keywords

centers
 
clinical neuroimaging
 
conspicuity
 
emerging technique
 
high-resolution
 
microbleeds
 
neurological trauma
 
neurovascular diseases
 
phase mask
 
susceptibility effects
 
Susceptibility-weighted imaging
 
SWI
 
SWI technique
 
velocity compensated gradient-echo sequence