Motion Artifacts of Pulse Inversion-Based Tissue Harmonic Imaging
Resource
lEEE TRANShC'61ONS OFi ULTRASONICS, FERROELECTRICS, AND FREQUENCY COXTROL, VOL. 46, NO. 9, SEPTEMBER 2002
Journal
IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Journal Volume
VOL. 46
Journal Issue
NO. 9
Pages
-
Date Issued
2002-09
Date
2002-09
Author(s)
Shen, Che-Chou
DOI
246246/200611150121605
Abstract
Motion artifacts of the pulse inversion technique
were studied for finite amplitude distortion-based
harmonic imaging. Motion in both the axial and the lateral
directions was considered. Two performance issues were investigated.
One is the harmonic signal intensity relative to
the fundamental intensity and the other is the potential image
quality degradation resulting from spectral leakage. A
one-dimensional [ 1-D) correlation-based correction scheme
also ,was used to compensate for motion artifacts. Results
indidated that the tissue harmonic signal is significantly affected
by tissue motion. For axial motion, the tissue harmonic
intensity decreases much more rapidly than with lateral
,motion. The fundamental signal increases for both axial
and lateral motion. Thus, filtering is still required to remove
the fundamental signal, even if the pulse inversion technique
is aiplied. The motion also potentially decreases contrast
resolution because of the uncancelled spectral leakage. Also,
it was indicated that 1-D motion correction is not adequate
if nonaxial motion is present.
Publisher
Taipei:National Taiwan University Dept Elect Engn
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
8186.pdf
Size
767.96 KB
Format
Adobe PDF
Checksum
(MD5):4a4086798a7032c3040aa25a40f484bc