Intensity modulated operating mode of the rotating gamma system.

Purpose: The purpose of this work was to explore two novel operation modalities of the rotating gamma systems (RGS) that could expand its clinical application to lesions in close proximity to critical organs at risk (OAR).

Methods: The approach taken in this study consists of two components. First, a Geant4-based Monte Carlo (MC) simulation toolkit is used to model the dosimetric properties of the RGS Vertex 360™ for the normal, intensity modulated radiosurgery (IMRS), and speed modulated radiosurgery (SMRS) operation modalities.

[RADIOSURGERY OF INTRACEREBRAL CAVERNOMAS--CURRENT HUNGARIAN PRACTICE].

Background And Purpose: Radiosurgery is an increasingly popular treatment option especially for deep eloquent intracerebral cavernomas that are often too risky for surgical removal, but their re-bleed carries significant risk for persisting neurological deficit. Gamma-radiation based radiosurgery has been being available since 2007 in Hungary in Debrecen. Our aim is to summarize our experience accumulated during the first five years of treatment and to compare it to the international experience.

Population based ranking of frameless CT-MRI registration methods.

Background: Clinical practice often requires simultaneous information obtained by two different imaging modalities. Registration algorithms are commonly used for this purpose. Automated procedures are very helpful in cases when the same kind of registration has to be performed on images of a high number of subjects.

The effects of weightbath traction hydrotherapy as a component of complex physical therapy in disorders of the cervical and lumbar spine: a controlled pilot study with follow-up.

The therapeutic modalities available for the conservative management of chronic cervical and lumbar pain include underwater traction, the usefulness of which is not universally acknowledged. No reports have been published on clinical trials evaluating underwater traction. This study was intended to ascertain any beneficial impact of weightbath therapy on the clinical parameters and quality of life of patients with cervical/lumbar discopathy.

Examination of nasopharyngeal and tracheal somatosensory evoked potential recordings in dogs.

Objective: To investigate the value of nasopharyngeal and tracheal recordings of somatosensory evoked potentials (SSEP) in anesthetized dogs.

Animals: 10 healthy mixed-breed dogs (5 males and 5 females).

Procedure: Square-ware electrical stimuli (50 microseconds duration, 4Hz) were delivered through bipolar surface electrodes to the median nerve of the right forelimb with 7 to 12 mA constant current.