Detecting stripe artifacts in ultrasound images.
Brain perfusion diseases such as acute ischemic stroke are detectable through computed tomography (CT)-/magnetic resonance imaging (MRI)-based methods. An alternative approach makes use of ultrasound imaging. In this low-cost bedside method, noise and artifacts degrade the imaging process. Especially stripe artifacts show a similar signal behavior compared to acute stroke or brain perfusion diseases. This document describes how stripe artifacts can be detected and eliminated in ultrasound images obtained through harmonic imaging (HI). On the basis of this new method, both proper identification of areas with critically reduced brain tissue perfusion and classification between brain perfusion defects and ultrasound stripe artifacts are made possible.
Maciak
Adam
A
CADMEI GmbH, Otto-Hahn-Str. 6, 55424 Ingelheim, Germany. am@avallia.com
Kier
Christian
C
Seidel
Günter
G
Meyer-Wiethe
Karsten
K
Hofmann
Ulrich G
UG
D016477:Artifacts; D001931:Brain Mapping / Q000379:methods*; D006801:Humans; D020521:Stroke / Q000000981:diagnostic imaging*; D017585:Ultrasonography, Doppler, Transcranial / Q000379:methods*