Artefacts on magnetic resonance imaging with Osia®2 bone conduction hearing aid: A cadaver study.

Objectives: Hearing implants often limit the assessment of magnetic resonance examinations due to susceptibility artefacts. Our aim was to evaluate the impact of artefacts attributed to the Osia®2 implant system in terms of utility in visualizing selected cranial structures.

Methods: A BI300 implant and an OSI200 actuator were implanted into a human cadaver head in the audiologically most favourable position according to the manufacturer's guidelines.

[The role of MRI in measuring the effectivity of disease modifying treatments II].

The paraclinical examinations, principally the MRI have an increasing significance in the diagnosis of multiple sclerosis. However, MRI markers also have a prominent role in monitoring of the disease-course and activity, and also in the planning of possible therapeutic changes. In accordance with previously published international guidelines, in this article we propose a protocol for the monitoring the treatment efficacy in multiple sclerosis.

[The role of MRI in measuring the effectivity of disease modifying treatments I].

MRI has a significant role in the diagnosis of multiple sclerosis. The newer and newer treatment options of the disease make it necessary to monitor the effectiveness of the therapy. Besides the clinical signs (clinical relapses and progression), the different MRI parameters can also reflect the disease activity.

Miyazaki Syndrome due to Ventriculoperitoneal Shunt Treatment.

Background: The signs and pathomechanism of Miyazaki syndrome is presented through the case of a young female patient.

Case Description: The 33-year-old patient had undergone placement of a ventriculoperitoneal shunt with a pressure-adjustable valve for communicating hydrocephalus years before presenting to our department with the complaints of constant headache and unsteady gait. On the basis of the clinical picture and her history, plain and contrast-enhanced cranial and whole spine magnetic resonance imaging and magnetic resonance angiography examinations were performed, with the scans revealing signs indicative of cerebrospinal fluid hypotension typical of Miyazaki syndrome.

Monitoring human herpesvirus-6 in patients with autologous stem cell transplantation.

Background/aim: Due to the increasing number of immunocompromised patients and widely used autologous stem cell transplantation procedures, clinicians have to face with the emergence of infectious diseases. In this setting, we mainly focus our interest on cytomegalovirus (CMV) testing and only in some cases on other herpesviruses (HHV). Herein, we present monitoring of HHV-6 virus re-activation and infection in patients after autologous stem cell transplantation.

Stroke in essential thrombocythemia.

Background: Our aim was to assess the incidence and the special characteristics of stroke, as a severe complication of patients diagnosed with essential thrombocythemia (ET).

Methods: A retrospective analysis was carried out on 102 patients with ET enrolled and analyzed from the period between 1999 and 2012. Patients with one or more strokes were selected.