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A new image-navigation system for vascular interventional surgery robot (VISR) is proposed. This system can provide robot with navigation information based on projection images without other external tracking devices. Firstly, projection images acquired from digital subtraction angiography (DSA) machine are calibrated by iterative optimization process. Secondly, 3D vascular model is reconstructed...
Estimation of region of interest (ROI) activity is an important task in emission tomography. ROI quantification is essential for measuring clinical factors such as tumor activity, growth rate, and the efficacy of therapeutic interventions. Accuracy of ROI quantification is significantly affected by image reconstruction algorithm. In penalized maximum-likelihood (PML) algorithm, the regularization...
In this paper we present validation of laser-Doppler spectrum decomposition procedure in estimation of speed distribution of particles. Decomposition method is based on assumption that measured laser-Doppler spectrum can be approximated by linear combination of Doppler shift probability distributions calculated for different speeds of particles and anisotropy of light scattering in the medium. The...
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