Journal article

Qualitative comparison of 3-T and 1.5-T MRI in the evaluation of epilepsy

Pramit M Phal, Alexander Usmanov, Gary M Nesbit, James C Anderson, David Spencer, Paul Wang, Jonathan A Helwig, Colin Roberts, Bronwyn E Hamilton

AMERICAN JOURNAL OF ROENTGENOLOGY | AMER ROENTGEN RAY SOC | Published : 2008

Abstract

OBJECTIVE: MRI at 3 T, which has a higher signal-to-noise ratio than 1.5-T MRI, is potentially more sensitive and specific at delineating epileptogenic lesions and may influence management of refractory epilepsy. The purposes of the current study were to compare image quality of 3-T MRI with that of 1.5-T MRI in the evaluation of epilepsy and, in cases of focal epilepsy, to compare the two field strengths in terms of lesion detection and characterization. MATERIALS AND METHODS: Retrospective review was performed on 50 sets of MR images of 25 patients who underwent both 3-T and 1.5-T brain imaging with a dedicated epilepsy protocol, including fast spin-echo T2-weighted, coronal FLAIR, coronal..

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