What factors affect a patient's subjective perception of MRI examination.

MRI is becoming increasingly available and more common. However, it is a long examination, within a limited space, and making strong demands on the patient for proper co-operation. Using survey data collected by prospective questionnaire, this work examines the influence of patient preparation and type of MRI device on patients' subjective perception of the examination.

Application and Technical Principles of Catheter High-Frequency Jet Ventilation.

The aim of this publication is to analyze the topic of high-frequency jet ventilation (HFJV), namely catheter HFJV (C-HFJV), from a mathematical-physical as well as a clinical point of view. There are known issues with applying anesthesia and artificial lung ventilation (ALV) during surgical procedures in the upper airways, e.g.

Oral lichen planus and malignant transformation: a retrospective follow-up study of clinical and histopathologic data.

Objective: Patients in the stomatology service of the Department of Oral Surgery and Stomatology who were clinically and histopathologically diagnosed with oral lichen planus (OLP) in the years 1995 to 2001 were examined for a possible malignant transformation of a previously biopsied OLP site.

Method And Materials: For the 145 patients included, the recordings were searched for initial localization and type of OLP lesion, potential noxious agents, distribution between symptomatic and asymptomatic OLP types, and for a malignant transformation of a known OLP site during the follow-up period up to December 2003.

Results: The group comprised 47 men and 98 women with a mean age of 56.

[Substitution of soft tissue defects on the lower leg and foot in septic cases].

After the spontaneous epithelialisation of the defects of soft parts so called unstable scars remain which, because of ulceration, are sources of infection, endangering both soft parts and bones. Substitution with soft tissues of adequate blood supply enables the complete sanation of the septic foci and by this the rapid healing of the patient with full function. Beside this a better cosmetic result can be achieved.