Three-dimensional automated segmentation of coronary wall and plaque from intravascular ultrasound pullback sequences

Electrocardiogram-Gated Intravascular Ultrasound Image Acquisition After Coronary Stent Deployment Facilitates On-Line Three-Dimensional Reconstruction and Automated Lumen Quantification

“…In the present study, to overcome this important limitation, we used ECG-gated IVUS image acquisition (23) and a validated automated 3D analysis system (18,19,27) on-line after angiography-guided stent deployment. The importance of ECG-gated image acquisition for off-line automated 3D IVUS measurements has been demonstrated by other groups (16,21) using alternative 3D contour detection systems. Sonka and colleagues (16) have stated that the correlation between observer-defined and automated lumen contours by their system improved as a result of ECG gating (r ϭ 0.91 and 0.98 for nongated and ECG-gated, respectively) (16).…”

“…The importance of ECG-gated image acquisition for off-line automated 3D IVUS measurements has been demonstrated by other groups (16,21) using alternative 3D contour detection systems. Sonka and colleagues (16) have stated that the correlation between observer-defined and automated lumen contours by their system improved as a result of ECG gating (r ϭ 0.91 and 0.98 for nongated and ECG-gated, respectively) (16). We found that ECG-gated image acquisition resulted in much smoother vessel boundaries, readily facilitating the on-line contour detection process.…”

Medical image segmentation: Automated design of border detection criteria from examples

“…In the past, we have developed and validated a single-purpose method for segmentation of intravascular images and image sequences. 2,12 More detailed descriptions of intravascular ultrasound applications and analysis methods can be found in Ref. 13.…”

The Benefits of IVUS Dynamics for Retrieving Stable Models of Arteries

“…Both 3D reconstructions and bio-mechanical properties 12 www.intechopen.com assessment require a compensation of artery dynamics, either by sampling the sequence synchronized with a cardiac phase or by in-plane sequence stabilization. Since the early years of IVUS imaging, many algorithms for a reliable intima detection (Bouma et al, 1997;Brathwaite et al, 1996;Brathwaite & McPherson, 1998;Brusseau et al, 2004;Dijkstra et al, 2001;Gil et al, 2000;Hansen et al, 2002;Luo et al, 2003;Mendizabal-Ruiz et al, 2008;Sonka et al, 1996;von Birgelen et al, 1996; and plaque characterization (de Korte et al, 2000;Escalera et al, 2008;Granada et al, 2007;Nair et al, 2002;Okubo et al, 2008) have been proposed. Most of them are based on the appearance of structures in images.…”