BACKGROUND/PURPOSE Muscle weakness is an important feature of multiple sclerosis and is responsible for much of the disability associated with that condition. Here, we describe the quantitative magnetic resonance imaging (MRI) attributes of the major intracerebral motor pathway--the corticospinal tract--in multiple sclerosis. To do so, we develop an intuitive method for creating and displaying ...

Sediment cores from 13 deep boreholes (1– 4.1 km) distributed within Axios zone in Northern Greece have been studied by means of palaeomagnetism. Both low field magnetic susceptibility and intensity of the natural remanent magnetization (NRM) indicate rather weakly magnetised materials. A set of 390 samples have been subjected to thermal and alternative field demagnetization. Isothermal remanen...

Modeling the effects of clinical magnetization transfer (MT) scans, which generate contrast using short, shaped radiofrequency (RF) pulses (pulsed MT), is complex and time-consuming. As a result, several studies have proposed approximate methods for a simplified analysis of the experimental data. However, potential differences in the MT parameters estimated by each method may complicate the com...

INTRODUCTION Volumetric loss of some cerebral structures is noticed during morphometrical investigations, and it is one of the most frequent abnormalities in schizophrenic patients' brains. The new methods of MRI investigations show subtle changes in cerebral white matter, which are undetectable by standard MRI. The magnetic transfer imaging (MTI) may be used to estimate the structural integrit...

BACKGROUND AND PURPOSES MR imaging is now widely used to monitor disease progression in patients with multiple sclerosis (MS). The purpose of this study was to explore the relationship between disability status and existing and new MR parameters in MS patients. METHODS Forty-one patients with clinically definitive MS were studied. MR imaging included T2- and T1-weighted imaging as well as gra...