Associated with the state of anaesthesia, characteristic changes exist in both cardio-respiratory and cerebral oscillator parameters and couplings, perhaps varying with depth of anaesthesia. By using non-linear dynamics and information theory different stages of anaesthesia and effects of different anaesthetics can be identified.
COBISS.SI-ID: 22373081
Intensity inhomogeneity in magnetic resonance images can adversely affect quantitative image analysis. We review numerous methods that have been developed to reduce or eliminate intensity inhomogeneities in MRI. The methods are reviewed according to the correction strategy and qualitative and quantitative evaluation approaches.
COBISS.SI-ID: 5796180
We present a novel 3-D/2-D registration method by which a 3-D image is first reconstructed from a few 2-D X-ray images and next, the preoperative 3-D image is brought into the best possible spatial correspondence with the reconstructed image. The proposed method is applicable in image-guided therapy, where high-quality preoperative images serve for planning and simulation, and intraoperatively as "background", onto which models of surgical instruments or radiation beams are projected.
COBISS.SI-ID: 5128532
Communication between cells is crucial for proper functioning of multicellular organisms. We showed that membranous nanotubes which directly bridge neighboring cells are of two types. The two types may offer a very specific and effective way of intercellular communication. A possible model of formation and mechanical stability of nanotubes that bridge two neighboring cells is discussed.
COBISS.SI-ID: 24674009
We reconstructed a nonlinear stochastic model of the cardiorespiratory interaction in terms of a set of polynomial basis functions representing the nonlinear force governing system oscillations. The strength and direction of coupling and noise intensity were simultaneously inferred from a univariate blood pressure signal. Our new inference technique does not require extensive global optimization, and it is applicable to a wide range of complex dynamical noisy systems.
COBISS.SI-ID: 4683348