Virtual monoenergetic images from photon-counting spectral computed tomography to assess knee osteoarthritis.

Background: Dual-energy computed tomography has shown a great interest for musculoskeletal pathologies. Photon-counting spectral computed tomography (PCSCT) can acquire data in multiple energy bins with the potential to increase contrast, especially for soft tissues. Our objectives were to assess the value of PCSST to characterise cartilage and to extract quantitative measures of subchondral bone integrity.

Prevalence, Clinical Characteristics, and Risk Factors for Non-recording of Alcohol Use in Hospitals across Europe: The ALCHIMIE Study.

Aim: To determine the detection rates, clinical features, and risk factors for lack of registration of alcohol use in medical patients admitted in European hospitals.

Methods: A point-prevalence, cross-sectional, multicenter survey involving 2100 medical inpatients from 43 hospitals from 8 European countries. Patients were screened for current alcohol use, using standardized questionnaires.

[Apropos of sleep quality in students: prospective study].

This study about the pupils' sleep in the academy of Aix-Marseille has been realized after the observations of second cycle's teachers; they have noted a somnolence by an important number of pupils during lessons, consequence of a supposed sleep lack able to have repercussions on the scholastic success. Hearing teachers and pupils' suggestions, the authors have established a questionnaire with 20 items; this study is concerning 1,300 pupils, 15 to 20 years old, in classic, technical and agricultural high schools, both in public and private establishments. The most salient characteristic is the differences between the sleep of the scholastic period and the sleep of week end or holiday.