Sciweavers

ISBI
2008
IEEE
13 years 11 months ago
Comparative assessment of different energy mapping methods for generation of 511-keV attenuation map from CT images in PET/CT sy
The use of X-ray CT images for CT-based attenuation correction (CTAC) of PET data results in the decrease of overall scanning time and creates a noise-free attenuation map (μmap)...
Maryam Shirmohammad, Mohammad Reza Ay, Saeed Sarka...
ISBI
2008
IEEE
13 years 11 months ago
A global approach to cardiac tractography
Cardiac myofibrilles bundles in the human heart can be located by iteratively tracing the local water diffusion direction inferred from diffusion weighted MRI images. This well k...
Carole Frindel, Joël Schaerer, Pierre Gueth, ...
ISBI
2008
IEEE
13 years 11 months ago
Support vector driven Markov random fields towards DTI segmentation of the human skeletal muscle
In this paper we propose a classification-based method towards the segmentation of diffusion tensor images. We use Support Vector Machines to classify diffusion tensors and we ex...
Radhouène Neji, Gilles Fleury, Jean Francoi...
ISBI
2008
IEEE
13 years 11 months ago
Theoretical analysis of complex-conjugate-ambiguity suppression in frequency-domain optical-coherence tomography
New phase-shifting techniques have recently been proposed to suppress the complex-conjugate ambiguity in frequencydomain optical-coherence tomography. A phase shift is introduced,...
S. Chandra Sekhar, Roland Michaely, Rainer A. Leit...
ISBI
2008
IEEE
13 years 11 months ago
On the non-uniform complexity of brain connectivity
A stratification and manifold learning approach for analyzing High Angular Resolution Diffusion Imaging (HARDI) data is introduced in this paper. HARDI data provides highdimensio...
Gloria Haro, Christophe Lenglet, Guillermo Sapiro,...
ISBI
2008
IEEE
14 years 5 months ago
System sensitivity in preclinical small animal imaging
Preclinical small animal imaging is an important tool at the disposition of biological researchers. While the range of studies performed by non-invasive preclinical imaging is gre...
Arion-Xenofon Chatziioannou, Nicolas A. Karakatsan...
ISBI
2008
IEEE
14 years 5 months ago
Increased sensitivity in FMRI group analysis using mixed-effect modeling
In functional Magnetic Resonance Imaging group studies, uncertainties on the individual BOLD responses are not taken into account by standard detection procedures, which may limit...
Merlin Keller, Alexis Roche
ISBI
2008
IEEE
14 years 5 months ago
Analysis and mitigation of calcium artifacts in cardiac multidetector CT
Multi-detector Computed Tomography offers the promise of a non-invasive alternative to invasive coronary angiography for the evaluation of coronary artery disease. An impediment p...
Zhuangli Liang, W. Clem Karl, Synho Do, Thomas Bra...
ISBI
2008
IEEE
14 years 5 months ago
Visualizing morphogenesis and growth by temporal interpolation of surface-based 3D atlases
Image-based 3D atlases have been proven to be very useful in biological and medical research. They serve as spatial reference systems that enable researchers to integrate experime...
Chavdar Papazov, Vincent J. Dercksen, Hans Lamecke...
ISBI
2008
IEEE
14 years 5 months ago
Comparison of fractional and geodesic anisotropy in diffusion tensor images of 90 monozygotic and dizygotic twins
We used diffusion tensor magnetic resonance imaging (DTI) to reveal the extent of genetic effects on brain fiber microstructure, based on tensor-derived measures, in 22 pairs of m...
Agatha D. Lee, Natasha Lepore, Marina Barysheva, Y...