TY  - JOUR
AU  - Aura Hernandez-Sabate
AU  - Debora Gil
AU  - Jaume Garcia
AU  - Enric Marti
PY  - 2011//
TI  - Image-based Cardiac Phase Retrieval in Intravascular Ultrasound Sequences
T2  - T-UFFC
JO  - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
SP  - 60
EP  - 72
VL  - 58
IS  - 1
KW  - 3-D exploring
KW  - ECG
KW  - band-pass filter
KW  - cardiac motion
KW  - cardiac phase retrieval
KW  - coronary arteries
KW  - electrocardiogram signal
KW  - image intensity local mean evolution
KW  - image-based cardiac phase retrieval
KW  - in vivo pullbacks acquisition
KW  - intravascular ultrasound sequences
KW  - longitudinal motion
KW  - signal extrema
KW  - time 36 ms
KW  - band-pass filters
KW  - biomedical ultrasonics
KW  - cardiovascular system
KW  - electrocardiography
KW  - image motion analysis
KW  - image retrieval
KW  - image sequences
KW  - medical image processing
KW  - ultrasonic imaging
N2  - Longitudinal motion during in vivo pullbacks acquisition of intravascular ultrasound (IVUS) sequences is a major artifact for 3-D exploring of coronary arteries. Most current techniques are based on the electrocardiogram (ECG) signal to obtain a gated pullback without longitudinal motion by using specific hardware or the ECG signal itself. We present an image-based approach for cardiac phase retrieval from coronary IVUS sequences without an ECG signal. A signal reflecting cardiac motion is computed by exploring the image intensity local mean evolution. The signal is filtered by a band-pass filter centered at the main cardiac frequency. Phase is retrieved by computing signal extrema. The average frame processing time using our setup is 36 ms. Comparison to manually sampled sequences encourages a deeper study comparing them to ECG signals.
SN  - 0885-3010
L1  - http://refbase.cvc.uab.es/files/HGB2011.pdf
UR  - http://dx.doi.org/10.1109/TUFFC.2011.1774
N1  - IAM;ADAS
ID  - Aura Hernandez-Sabate2011
ER  -