Title :
ECG gated tomographic reconstruction for 3-D rotational coronary angiography
Author :
Hu, Yining ; Xie, Lizhe ; Nunes, Jean Claude ; Bellanger, Jean Jacques ; Bedossa, Marc ; Toumoulin, Christine
Author_Institution :
Lab. of Image Sci. & Technol. (LIST), South East Univ., Nanjing, China
fDate :
Aug. 31 2010-Sept. 4 2010
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.
Keywords :
Bayes methods; Poisson distribution; angiocardiography; computerised tomography; electrocardiography; image reconstruction; maximum likelihood estimation; medical image processing; 3-D rotational coronary angiography; 3D coronary tree; 3D dynamic sequence; Bayesian maximum a posteriori estimation; ECG gated tomographic reconstruction; GE LightSpeed CT scan; L0-norm; L1 norm; L2-norm; Poisson distributed projection; cardiac cycle; rotational angiography; Angiography; Convergence; Data models; Image reconstruction; Logic gates; Three dimensional displays; Tomography; Algorithms; Cardiac-Gated Imaging Techniques; Coronary Angiography; Electrocardiography; Humans; Imaging, Three-Dimensional; Pattern Recognition, Automated; Radiographic Image Enhancement; Radiographic Image Interpretation, Computer-Assisted; Reproducibility of Results; Sensitivity and Specificity; Tomography;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2010 Annual International Conference of the IEEE
Conference_Location :
Buenos Aires
Print_ISBN :
978-1-4244-4123-5
DOI :
10.1109/IEMBS.2010.5627449
