Introduction: An efficient method of tomographic imaging in nuclear medicine is positron emission tomography (PET). Compared to SPECT, PET has the advantages of higher levels of sensitivity, spatial resolution and more accurate quantification. However, high noise levels in the image limit its diagnostic utility. Noise removal in nuclear medicine is traditionally based on Fourier decomposition o...

introduction: an efficient method of tomographic imaging in nuclear medicine is positron emission tomography (pet). compared to spect, pet has the advantages of higher levels of sensitivity, spatial resolution and more accurate quantification. however, high noise levels in the image limit its diagnostic utility. noise removal in nuclear medicine is traditionally based on fourier decomposition o...

ultrasound images suffer of multiplicative noise named speckle. different de-speckling algorithms run either in spatial domain or in transformed domain. in this paper, an adaptive filter in spatial domain according to assume the nakagami distribution as the statistic of log-compressed ultrasound images is used. for de-speckling in transformed domain, the non-sub sampled shearlet transform is us...

Two-dimension gel electrophoresis (2-DE) is a proteomic technique that allows the analysis of protein profiles expressed in a given cell, tissue or biological system at a given time. The 2-DE images depict protein as spots of various intensities and sizes. Due to the presence of noise, the inhomogeneous background, and the overlap between the spots in 2-DE image, the protein spot detection is n...

Stavros Alchatzidis134 [email protected] Aristeidis Sotiras2 [email protected] Nikos Paragios134 [email protected] 1 Equipe GALEN, INRIA Saclay, Île-de-France, Orsay, France 2 Section of Biomedical Image Analysis,Department of Radiology, University of Pennsylvania, Pennsylvania, USA 3 Ecole des Ponts Paristech, Champs-sur-Marne, Île-de-France, France 4 Ecole Central...

PNEUllOTHORAX DE L'ENFANT  Presentation de 17 cas. Revue de la litterature Par: Marandian M.H., Momenzadhe A., Wali­zade G., Kabiri M., A'skari H. et Movasat M.  Durant deux ans et demi, 17 cas de pneumo­thorax ont ete observes dans le service de Pedia­trie de !'Hospital Pahlavi de l'Univm-site de Teheran:  1)9 de ces malades etaient ages de moins d'un an. Le malade le plus age atteint de pn...

The method of 2‑dimensional gel electrophoresis (2-DE) has been widely used for the proteomic profiling of solid biological samples, however, the analytical conditions have not been optimized. The present study optimized the major conditions of 2‑DE for determining the protein contents of solid tumor tissues, through enhancement of the separation efficiency and resolution. Three major analytica...

Dual-energy (DE) imaging of the chest improves the conspicuity of subtle lung nodules through the removal of overlying anatomical noise. Recent work has shown double-shot DE imaging (i.e., successive acquisition of low- and high-energy projections) to provide detective quantum efficiency, spectral separation (and therefore contrast), and radiation dose superior to single-shot DE imaging configu...

1 Image Sciences Institute, University Medical Center Utrecht, Utrecht, Netherlands, 2 Instituto de Engenharia Biomédica, Faculdade de Engenharia da Universidade do Porto, Porto, Portugal, 3 Department of Radiology, University Medical Center Utrecht, Utrecht, Netherlands, 4 Department of Radiology, Meander Medical Center, Amersfoort, Netherlands, 5 Diagnostic Image Analysis Group, Radboudumc, N...