Fast method for longitudinal relaxation time and water content mapping of the human brain on a clinical MR scanner.

Background: Longitudinal relaxation time (T(1)) map generation from human brain slices renders possible the in vivo follow-up of the changes in T(1) values during the course of several pathologies such as stroke, multiple sclerosis, traumatic brain injury etc. T(1) values can be converted to water contents, thus brain oedema reducing therapy can be non-invasively evaluated. The purpose of the study was to work out a fast and simple MRI method to obtain T(1) and water maps of the human brain.

Occurrence of osteopenia among adolescent girls with oligo/amenorrhea.

The occurrence of reduced bone mineral density (BMD) among adolescent girls with oligomenorrhea or secondary amenorrhea, due to 'pure' dysfunction of the hypothalamo-pituitary-ovarian (HPO) axis (without anorexia nervosa, excessive sport or ballet, slimming diet, etc.) was examined. The study group consisted of 19 adolescent girls (age 16-18 years) with oligo/amenorrhea.

[Lower bone density (osteopenia) in adolescent girls with oligomenorrhea and secondary amenorrhea].

Occurrence of reduced BMD among adolescent girls and young women due to certain specific oligomenorrhea or amenorrhea (anorexia nervosa, excessive sport or ballet, etc.) is well known. However the prevalence of osteopenia among 16-18 years old girls with the cycle disorders mentioned above--caused by "pure" hypothalamo-pituitary-ovarian insufficiency--is not yet sufficiently examined.

[The role of computerized tomography in the staging of lung cancer].

Staging of lung cancer place significant role in the prognosis and treatment of the disease. Beside bronchoscopy, CT one of the important method for the tumor staging. 135 CT examinations with diagnosis of suspected lung cancer were evaluated and radiologic diagnosis was compared with the cyto-histological and surgical results.

[Sedation and sleep induction instead of anesthesia in infants and young children during CT and MRI examinations].

The authors recommend a simple, safe method to the CT and MR examinations of babies and young children instead of general anaesthesia. They performed 51 examinations (CT: 23, MRI: 28 cases, skul: 36, spine: 3, hip: 2, chest: 1, abdomen: 9) with this method and give an account of favourable results.