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Article
A Proof of Concept of a Non-Invasive Image-Based Material Characterization Method for Enhanced Patient-Specific Computational Modeling
Computational models of cardiovascular structures rely on their accurate mechanical characterization. A validated method able to infer the material properties of patient-specific large vessels is currently lac...
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Article
Transmit-Only/Receive-Only Radiofrequency System for Hyperpolarized 13C MRS Cardiac Metabolism Studies in Pigs
Hyperpolarized 13C magnetic resonance spectroscopy in pig models enables metabolic activity map**, providing a powerful tool for the study of the heart physiology, but requires the development of dedicated radi...
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Article
Coil Sensitivity Estimation with Perturbing Sphere Method: Application to 13C Birdcages
Radiofrequency coils in magnetic resonance systems are used to irradiate nuclear spins and to pick up the signals emitted by the nuclei with high signal-to-noise ratio and large sensitivity region. The quality...
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Article
Hyperpolarized 13C MRS Cardiac Metabolism Studies in Pigs: Comparison Between Surface and Volume Radiofrequency Coils
Cardiac metabolism assessment with hyperpolarized 13C magnetic resonance spectroscopy in pig models requires the design of dedicated coils capable of providing large field of view with high signal-to-noise ratio ...
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Chapter and Conference Paper
A new multi-resolution optimization algorithm for PET - CT cardiac images registration
Cardiac image fusion is the combination of medical images of heart acquired by different modalities. A prerequisite for image fusion is the image registration process, that allows the spatial alignment of the ...
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Chapter and Conference Paper
Mutual Information Preconditioning Improves Bayesian Networks Learning of Medical Databases
Bayesian Networks represent one of the most successful tools for medical diagnosis and therapies follow-up. We present an algorithm for Bayesian network structure learning, that is a variation of the standard ...
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Article
Independent component analysis applied to the removal of motion artifacts from electrocardiographic signals
Electrocardiographic (ECG) signals are affected by several kinds of artifacts that may hide vital signs of interest. In this study we apply independent component analysis (ICA) to isolate motion artifacts. Sta...
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Article
Visceral fat and beta cell function in non-diabetic humans
Preferential visceral adipose tissue (VAT) accumulation has been clearly associated with insulin resistance. In contrast, the impact of visceral obesity on beta cell function is controversial.
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Article
40th EASD Annual Meeting of the European Association for the Study of Diabetes
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Article
A model-based method for myocardium flow estimation
Results of the present study show that accurate estimates of myocardial blood flow may be obtained using a spatially distributed model of residual curves of an intravascular indicator. In order to improve myoc...
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Chapter and Conference Paper
Fast and quantitative analysis of 4D cardiac images using a SMP architecture
In the present research a parallel algorithm for medical image processing has been proposed, which allows 3D quantitative analysis of left ventricular cardiac wall motion in real time. It is a fundamental task...
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Chapter and Conference Paper
A parallel system for dynamic 3D medical imaging
The objective of this research was to develop a parallel code for high performance dynamic volume rendering of medical images, starting from 2D image sequences. The availability of a parallel supercomputer ena...
