The effect of automated marker detection on in vivo volumetric stent reconstruction.
New drug eluting stents are less radiopaque than bare metal stents and therefore difficult to see with conventional X-ray coronary angiography. 2D StentBoost and intravascular ultrasound (IVUS) are routinely used to evaluate stent deployment and vessel apposition during a percutaneous coronary intervention. IVUS images give cross-sectional information about the stent lumen and surrounding tissue. 2D StentBoost is a boosted angiogram sequence and visualizes the geometry of the deployed stent from a fixed viewing direction. Three-dimensional motion compensated volumetric stent reconstruction has been developed to give insight into the 3D geometry of the stent. Markers on the balloon wire are used to motion compensate cardiac rotational angiography acquisitions. In this paper we present the effect of automated marker detection on in vivo volumetric cardiac stent reconstructions. Automated or semi-automated marker detection reduces user interaction, potentially reduces total processing time, and increases detection results which leads to higher quality of stent reconstructions.
Schoonenberg
Gert
G
Philips Healthcare, X-Ray Predevelopment, Best, The Netherlands. gert.schoonenberg@philips.com
Lelong
Pierre
P
Florent
Raoul
R
Wink
Onno
O
ter Haar Romeny
Bart
B
D000465:Algorithms; D001185:Artificial Intelligence; D001807:Blood Vessel Prosthesis; D017023:Coronary Angiography / Q000379:methods*; D003331:Coronary Vessels / Q000601:surgery; D021621:Imaging, Three-Dimensional / Q000379:methods*; D010363:Pattern Recognition, Automated / Q000379:methods*; D011856:Radiographic Image Enhancement / Q000379:methods; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D015607:Stents