The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
L’article développe une méthodologie de recherche basée sur l’utilisation de marqueurs fluorescents applicable aux préparations cellulaires ou tissulaires marquées, pour l’observation sur des microscopes confocaux à balayage laser.Les principes de l’imagerie spectrale qui permettent de séparer l’émission des chromophores impliqués dans un multimarquage sont décrits au préalable à la présentation de...
The use of Ventricular Assist Devices (VAD) is increasing in the context of refractory heart failure. Nevertheless, there is still a high rate of complications. This preliminary work analyzes more precisely the clinical needs and proposes a first solution for preoperative planning of device implantation. The proposed approach consists in representing within a common space the 3D mesh describing the...
In Glioblastoma Multiforme (GBM) image-derived features (“radiomics”) could help in individualizing patient management. Simple geometric features of tumors (necrosis, edema, active tumor) and first-order statistics in Magnetic Resonance Imaging (MRI) are used in clinical practice. However, these features provide limited characterization power because they do not incorporate spatial information and...
Objectives: Non-contact specular microscopes (SM) have a very small field of observation (usually 0.1 mm2). This constitutes a major limitation when accurate and extended assessment of the corneal endothelium is needed, for instance during clinical trials or difficult diagnosis. Previous contact SM had the advantage of a wide field thanks to the use of an applanating cone but none of the old commercial...
Objectives: In radiotherapy for prostate cancer the pelvic organs move and deform between fractions introducing geometrical uncertainties that make difficult to determine the delivered dose to healthy organs. This paper proposes a population model based on principal component analysis (PCA) to describe bladder motion and deformation between fractions by determining directions of geometric variability...
Selective Internal Radiation Therapy is an emerging, minimally invasive therapy of liver cancer. Millions of microspheres are injected through a catheter into tumor vascular supply. Microspheres distribution in liver is strongly dependent on patient's arteries geometry and catheter tip positioning, which is currently chosen by the physician based on qualitative image interpretation. A patient-specific...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.