Functional MRI is a valid noninvasive alternative to Wada testing
نویسندگان
چکیده
منابع مشابه
Magnetocephalography: a noninvasive alternative to the Wada procedure.
OBJECT In this study the authors evaluated the sensitivity and selectivity of a noninvasive language mapping procedure based on magnetoencephalography (MEG), for determining hemispheric dominance for language functions. METHODS Magnetic activation profiles of the brain were obtained from 100 surgical candidates (age range 8-56 years) with medically intractable seizure disorder by using a whol...
متن کاملFunctional MRI measurement of language lateralization in Wada-tested patients.
In this study the use of functional MRI (fMRI) for measuring language lateralization non-invasively was examined. The subjects were seven patients with histories of temporal lobe epilepsy who had undergone Wada testing for pre-surgical evaluation. Four patients were left-hemisphere-dominant and three were right-hemisphere-dominant for language. They received fMRI scans while they made semantic ...
متن کاملQualitative Research Is a Valid Alternative Too
Objective. To describe the main qualitative research techniques through systematic review of Spanish studies published during the previous 5 years. Design. Systematic review. Data sources. The Índice Médico Español (bibliographic database of items published in Spanish health sciences journals) was searched, and systematic searches of the journals Atención Primaria, Gaceta Sanitaria, and Revista...
متن کاملNoninvasive determination of language lateralization by functional transcranial Doppler sonography: a comparison with the Wada test.
BACKGROUND AND PURPOSE Functional transcranial Doppler ultrasonography (fTCD) can assess event-related changes in cerebral blood flow velocities and, by comparison between sides, can provide a measure of hemispheric perfusional lateralization. It is easily applicable, insensitive to movement artifacts, and can be used in patients with less than perfect cooperation. In the present study we inves...
متن کاملA statistically valid alternative to the TDT.
OBJECTIVE To present an alternative linkage test to the transmission/disequilibrium test (TDT) which is conservative under the null hypothesis and generally more powerful under alternatives. METHODS The exact distribution of the TDT is examined under both the null hypothesis and relevant alternatives. The TDT is rewritten in an alternate form based on the contributions from each of the three ...
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ژورنال
عنوان ژورنال: Epilepsy & Behavior
سال: 2011
ISSN: 1525-5050
DOI: 10.1016/j.yebeh.2010.08.004