Publications (2)0 Total impact
-
Conference Proceeding: Towards a new diagnosis aid of cardiovascular diseases using 2D-multimodal data registration and 3D-data superimposition
[show abstract] [hide abstract]
ABSTRACT: This contribution deals with the diagnostic aid for cardiovascular diseases using a simultaneous exploitation of nuclear medicine imaging and X-ray cine angiography. The aim of this work is to build both 2D and a 3D-representation of the superimposition of the coronary tree (stemmed from X-ray angiography) with the myocardial perfusion data (obtained with single-photon emission computed tomography). These new images lead to a better understanding of the relationship between arterial stenosis and consequences on myocardium perfusion. The 2D-registration of the two modalities is first presented. The 3D-reconstruction of vessels using multiple angiographic viewpoints is then developed. Tests performed on a phantom showed that the mean distance between the back projections of 3D-reconstructed artery points into the coronarographies and the corresponding initial 2D-points used by the 3D-reconstruction equals 6 mm. Similar results were obtained for five patients.Image Processing, 2004. ICIP '04. 2004 International Conference on; 11/2004 -
Conference Proceeding: 2D and 3D-superimposition of cardiac SPECT and coronarography data
[show abstract] [hide abstract]
ABSTRACT: This contribution deals with the diagnostic aid for cardiovascular diseases using a simultaneous exploitation of Nuclear Medicine Imaging and X-ray Cine Angiography. The aim of this work is to superimpose the myocardial perfusion images on the coronarography ones as well as to reconstruct the coronary tree and set it on the perfusion volume. The final objective is to present in a synthetic way the information provided by both modalities. This data superimposition makes the diagnosis easier since the conjoint analysis of both modalities leads to a better visualization and understanding of the relationship between the stenosis on coronary arteries and their consequences on perfusion. Furthermore, these methods use standard modalities without strong constraints, and do not need any calibration procedure. That makes this solution easy and flexible to distribute. This paper presents a segmentation method of myocardial boundaries with deformable models, a registration of both modalities and a 3D-reconstruction technique of coronary vessels based on homologous points.Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE; 10/2003
