TY - GEN
T1 - Image-based frame gating of IVUS pullbacks
T2 - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
AU - O'Malley, Sean M.
AU - Carlier, Stéphane G.
AU - Naghavi, Morteza
AU - Kakadiaris, Ioannis A.
PY - 2007
Y1 - 2007
N2 - Intravascular ultrasound (IVUS) is a catheter-based modality which is used to produce high-resolution, cross-sectional images of the interior of blood vessels. By capturing 2-D IVUS images continually while translating the catheter, a volumetric image of a vessel may be digitally reconstructed. To improve the quality of these volumes, electrocardiogram (ECG)-based frame, gating is often applied to alleviate motion artifacts caused by the beating heart. However, there are several issues surrounding the use of ECG signals which make their use for this purpose potentially suboptimal. We introduce a method which gates pullback sequences by examining the imaging data alone, without requiring synchronous ECG, and guarantees that frames will be collected at those points in time when the heart is maximally motionless (i.e., regardless of the fraction of cardiac phase associated with those, points). We compare the results of our method, and, of ECG on pull-backs captured in vivo in swine.
AB - Intravascular ultrasound (IVUS) is a catheter-based modality which is used to produce high-resolution, cross-sectional images of the interior of blood vessels. By capturing 2-D IVUS images continually while translating the catheter, a volumetric image of a vessel may be digitally reconstructed. To improve the quality of these volumes, electrocardiogram (ECG)-based frame, gating is often applied to alleviate motion artifacts caused by the beating heart. However, there are several issues surrounding the use of ECG signals which make their use for this purpose potentially suboptimal. We introduce a method which gates pullback sequences by examining the imaging data alone, without requiring synchronous ECG, and guarantees that frames will be collected at those points in time when the heart is maximally motionless (i.e., regardless of the fraction of cardiac phase associated with those, points). We compare the results of our method, and, of ECG on pull-backs captured in vivo in swine.
KW - Biomedical acoustics
KW - Biomedical image processing
KW - Biomedical signal analysis
KW - Cardiovascular system
KW - Electrocardiography
UR - http://www.scopus.com/inward/record.url?scp=34547545245&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34547545245&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2007.366709
DO - 10.1109/ICASSP.2007.366709
M3 - Conference contribution
AN - SCOPUS:34547545245
SN - 1424407281
SN - 9781424407286
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - I433-I436
BT - 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07
Y2 - 15 April 2007 through 20 April 2007
ER -