Advantages of voice reproduction and the development of a biomimetic self-regulating double-clack valve for a prosthesis of the larynx--a feasibility study.

The human larynx is a versatile organ. Main functions are phonation, protection and regulation of the air ways. Patients suffer severely from the diagnosis of a laryngeal carcinoma of the stages T3 and T4.

Whole-body dual-modality PET/CT and whole-body MRI for tumor staging in oncology.

Context: Deciding on the appropriate therapy for patients with malignant diseases mandates accurate tumor staging with whole-body coverage. Magnetic resonance imaging (MRI) and a combined modality including positron emission tomography (PET) and computed tomography (CT) provide whole-body tumor staging in a single session.

Objective: To determine the staging accuracies of both whole-body PET/CT and whole-body MRI for different malignant diseases.