TY - JOUR
T1 - An algorithm for strain reconstruction from irregularly sampled, incomplete measurements
AU - Danilouchkine, Mikhail G.
AU - Mastik, Frits
AU - Van Der Steen, Antonius F.W.
PY - 2008
Y1 - 2008
N2 - This study proposes a novel algorithm for luminal strain reconstruction from sparse irregularly sampled strain measurements. It is based on the Normalized Convolution (NC) algorithm. The novel extension comprises the multiresolution scheme, which takes into account the fact the sample density of the available strain measurements varies during the cardiac cycle. The algorithm was applied for the luminal strain reconstruction in in-vivo Intravascular Ultrasound (IVUS) pullbacks. The high quality of strain restoration was observed after systematically removing up to 80%of the initial elastographic measurements. The restored distributions accurately reproduced the original strain patterns and the error did not exceed 12%. The experimental validation on 8 in-vivo IVUS pullbacks demonstrated that the relative decrease in number of invalid strain estimates amounts to 92:05±6:03 and 99:17±0:92 for the traditional and reconstructive strain computational scheme. In conclusion, implementation of reconstructive compounding scheme boosts the diagnostic value of IVUS Palpography.
AB - This study proposes a novel algorithm for luminal strain reconstruction from sparse irregularly sampled strain measurements. It is based on the Normalized Convolution (NC) algorithm. The novel extension comprises the multiresolution scheme, which takes into account the fact the sample density of the available strain measurements varies during the cardiac cycle. The algorithm was applied for the luminal strain reconstruction in in-vivo Intravascular Ultrasound (IVUS) pullbacks. The high quality of strain restoration was observed after systematically removing up to 80%of the initial elastographic measurements. The restored distributions accurately reproduced the original strain patterns and the error did not exceed 12%. The experimental validation on 8 in-vivo IVUS pullbacks demonstrated that the relative decrease in number of invalid strain estimates amounts to 92:05±6:03 and 99:17±0:92 for the traditional and reconstructive strain computational scheme. In conclusion, implementation of reconstructive compounding scheme boosts the diagnostic value of IVUS Palpography.
UR - http://www.scopus.com/inward/record.url?scp=67649348160&partnerID=8YFLogxK
U2 - 10.1109/ULTSYM.2008.0081
DO - 10.1109/ULTSYM.2008.0081
M3 - Conference article
AN - SCOPUS:67649348160
SN - 1051-0117
SP - 329
EP - 332
JO - Proceedings - IEEE Ultrasonics Symposium
JF - Proceedings - IEEE Ultrasonics Symposium
M1 - 4803162
T2 - 2008 IEEE International Ultrasonics Symposium, IUS 2008
Y2 - 2 November 2008 through 5 November 2008
ER -