Magnetic resonance imaging is a better diagnostic tool for cochlear ear implants than the more commonly used high-resolution computed tomography, a UT Southwestern study shows.
A cochlear implant, sometimes called a "bionic ear," allows patients with congenital hearing loss to bypass the problem and again perceive sound. Surgeons conduct radiologic studies using either an MRI or CT scan prior to implantation to determine abnormalities in the inner ear, conditions of related nerves and any obstructions in the ear ducts.
In the first head-to-head comparison, a research team led by Dr. Peter Roland, professor and chairman of otolaryngology, found that MRIs offered a more detailed view and better information on specifics. The results are reported online in the journal Otology & Neurotology.
Russell Rian | EurekAlert!
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Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
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Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
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