Nonparametric discriminant analysis methods are considered to segment brain multispectral MR images. Methods are based on i) a nonparametric estimate of voxel density functions by Kernel regression; ii) possibly a transform of the multispectral voxels into principal or independent components; iii) a classic Bayes 0-1 classification rule. Experiments are shown based on synthetic (brainweb) and r...

We thank Miss Elena Altieri for urinary pregnanediol determinations, Mrs. Elizabeth Grassau for help with the manuscript, and Mr. Rene Roy for photography and illustrations. The compounds used in this study were generously supplied as follows: Synthetic FSH/LH-RH (AY-24031) from Dr. M. Gahwyler, Ayerst International, New York, N.Y., U.S.A., Medroxy. progesterone Acetate (Depo-Provera) The Upjoh...

We propose a novel variational method for Magnetic Resonance Image denoising which is based on the modelling of Rician noise. In the context of MAP estimation the resulting energy functional is minimized embedding its Euler-Lagrange equation in an iterative regularization scheme. The algorithm is tested with synthetic MR images and the results show the effectiveness of the method which provides...

The structural determinants of aldosterone binding specificity in the mineralocorticoid receptor (MR) have not been determined. The MR has greatest sequence identity with the better characterized glucocorticoid receptor (GR), which is reflected in their overlapping ligand binding specificities. There must be subtle sequence differences that can account for the MR-specific binding of aldosterone...

PURPOSE To validate the dosimetric accuracy and clinical robustness of a commercially available software for magnetic resonance (MR) to synthetic computed tomography (sCT) conversion, in an MR imaging-only workflow for 170 prostate cancer patients. METHODS AND MATERIALS The 4 participating centers had MriPlanner (Spectronic Medical), an atlas-based sCT generation software, installed as a clou...

Introduction: All of the Imaging modalities have advantages and disadvantages alone. So if we want to have the best and perfect image, combining these modalities produces something we desired. PET-MR images consist of morphologic and metabolic data. MRI and PET provide high spatial and contrast resolution and high sensitivity and molecular information respectively. Hybrid PET-...

S71 ______________________________________________________________________________________________________ provided by dual-energy CT (DECT) compared to singleenergy CT (SECT) can be clinically used to reduce CT-based range uncertainties and to analyze intraand interpatient tissue variations. First, a DECT scan protocol was optimized and clinically introduced. Second, in a first analysis patien...

To find renewable and sustainable alternatives to reduce the severe environmental impact of single-use synthetic plastic packaging, glucose-crosslinked gelatin films containing different amounts chitin nanowhiskers (CNWs) were prepared. CNWs first prepared by acid hydrolysis from shrimps, characterized (morphological thermal properties), before their addition into film-forming formulations. The...