FLAIR-Sequenze nach Kontrastmittel

Importance of

Contrast-Enhanced Fluid-Attenuated Inversion Recovery Magnetic Resonance Imaging in Various Intracranial Pathologic Conditions: Fig. 1. Phantom study using increasing concentrations of Gd-DTPA on T1WI and FLAIR imaging. FLAIR imaging demonstrates higher signal intensity at 0.02% Gd-DTPA than T1WI and lower signal intensity at 0.1%, 0.8%, and 4% Gd-DTPA. These findings indicate that FLAIR sequence is more sensitive than T1WI images at lower concentrations of Gd. FLAIR and T1WI was obtained using same parameters as with patients. T1WI (TE = 9 ms, TR = 1800 ms, TI = 1745 ms); FLAIR (TE = 124 ms, TR = 9000 ms, TI = 2497 ms). FLAIR = fluid-attenuated inversion recovery, Gd = gadolinium, SD = standard deviation, TE = echo time, TI = inversion time, TR = repetition time, T1WI = T1-weighted imaging