Donepezil decreases annual rate of hippocampal atrophy in suspected prodromal Alzheimer's disease.

Introduction: The purpose of this study was to study the effect of donepezil on the rate of hippocampal atrophy in prodromal Alzheimer's disease (AD).

Methods: A double-blind, randomized, placebo-controlled parallel group design using donepezil (10 mg/day) in subjects with suspected prodromal AD. Subjects underwent two brain magnetic resonance imaging scans (baseline and final visit).

[3D representation of skull and soft tissues. Usefulness in orthodontic and orthognathic surgery].

Three D Modeling of the human face. The method combines the use of DICOM CT scan or cone beam data, anatomical informations and a mathematical tool, the axes of inertia, in order to create a 3D model for cephalometric analysis of the human face. The balance and symmetry of the model are stable enough to define normality for each individual, even when there are differences in ethnic and cultural origins.

[Dental implant news: from help to diagnosis to help to surgery].

Imaging has always been a part of dental implant procedures from its beginning. Initially, imaging was performed by dentists. The introduction of CT scan at the end of the seventies was revolutionary.

[Value of relative cerebral blood volume measurement using perfusion MRI in glioma management].

Introduction: Neoangiogenesis is a critical feature that can differentiate high-grade from low-grade glioma. Conventional MR imaging does not assess this histological feature accurately. The goal of this study was to evaluate the gain in relative cerebral blood volume measurement using perfusion MRI in the management of cerebral gliomas.