Noise in the MRI scanner
نویسندگان
چکیده
منابع مشابه
Speech perception in MRI scanner noise by persons with aphasia.
PURPOSE To examine reductions in performance on auditory tasks by aphasic and neurologically intact individuals as a result of concomitant magnetic resonance imaging (MRI) scanner noise. METHOD Four tasks together forming a continuum of linguistic complexity were developed. They included complex-tone pitch discrimination, same-different discrimination of minimal pair syllables, lexical decisi...
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PURPOSE To quantify the acoustic noise characteristics of a 4 Tesla MRI scanner, and determine the effects of structural acoustics and gradient pulse excitations on the sound field so that feasible noise control measures can be developed. MATERIALS AND METHODS Acoustic noise emissions were measured in the ear and mouth locations of a typical adult. The sound pressure measurements were acquire...
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Introduction The acoustic noise generated from the MRI system is a serious safety concern as well as a technical challenge for MR and acoustic noise control scientists. The emitted high noise levels can be both annoying and harmful to patients and healthcare workers, especially after long term exposure. Although various passive methods have been proposed to deal with this problem, active noise ...
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متن کاملAutomated post-hoc noise cancellation tool for audio recordings acquired in an MRI scanner.
There are several types of experiment in which it is useful to have subjects speak overtly in a magnetic resonance imaging (MRI) scanner, including those studying the articulatory apparatus and the neural basis of speech production, and fMRI experiments in which speech is used as a response modality. Although it is relatively easy to record sound from the bore, it can be difficult to hear the s...
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ژورنال
عنوان ژورنال: Anaesthesia
سال: 2000
ISSN: 0003-2409
DOI: 10.1046/j.1365-2044.2000.01798.x