Short-Tau-Inversion-Recovery-Fettsignalunterdrückung bei der T2-gewichteten Turbo-Spin-Echo-MRT von Malignomen in Mundhöhle und Oropharynx

Abstract
T1-weighted sequences before and after the application of contrast medium and T2-weighted sequences are used for magnetic resonance imaging of malignomas of the oral cavity and the oropharynx. The authors studied the utility of short tau inversion recovery fat suppression (STIR) in T2-weighted turbo spin echo sequences (TSE). Twenty patients with malignomas of the oral cavity and oropharynx were examined on a 1.0 Tesla magnetom using T2-weighted TSE-sequences with and without STIR as well as T1-weighted spin echo sequences before and after the application of contrast medium. STIR was successfull in all patients. STIR worsened the signal-noise-ratio significantly, but improved tumor delineation compared to T2-TSE without fat suppression in 75% according to three different investigators. The STIR technique is beneficial for the progress in diagnostic imaging of cancer of the oral cavity and oropharynx.

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