title: ECG gated tomographic reconstruction for 3-D rotational coronary angiography.
abstract: A method is proposed for 3-D reconstruction of coronary from a limited number of projections in rotational angiography. A Bayesian maximum a posteriori (MAP) estimation is applied with a Poisson distributed projection to reconstruct the 3D coronary tree at a given instant of the cardiac cycle. Several regularizers are investigated L0-norm, L1 and L2 -norm in order to take into account the sparsity of the data. Evaluations are reported on simulated data obtained from a 3D dynamic sequence acquired on a 64-slice GE LightSpeed CT scan. A performance study is conducted to evaluate the quality of the reconstruction of the structures.
authors.affiliation: Laboratory of Image Science and Technology (LIST), South East University, C-210096 Nanjing, China.
authors.forename: Yining
authors.initials: Y
authors.lastname: Hu
authors.forename: Lizhe
authors.initials: L
authors.lastname: Xie
authors.forename: Jean Claude
authors.initials: JC
authors.lastname: Nunes
authors.forename: Jean Jacques
authors.initials: JJ
authors.lastname: Bellanger
authors.forename: Marc
authors.initials: M
authors.lastname: Bedossa
authors.forename: Christine
authors.initials: C
authors.lastname: Toumoulin
mesh_terms: D000465:Algorithms; D055424:Cardiac-Gated Imaging Techniques / Q000379:methods*; D017023:Coronary Angiography / Q000379:methods*; D004562:Electrocardiography / Q000379:methods; D006801:Humans; 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; D014054:Tomography / Q000379:methods*