MRI Technologistalmost 8 years ago
STIR
STIR stands for Short-TI Inversion Recovery and is typically used to null the signal from fat. STIR sequence is generally uniform and relatively independent of magnetic field inhomogeneities. Unfortunately, STIR cannot be used as a fat suppression technique post-gadolinium (figure). STIR does not specifically suppress fat; it only suppresses tissues with (short) T1 values in the range of fat (200-300 ms). Thus gadolinium-containing tissues (like bladder, uterine fibroid; bottom row) with similar relaxation times will also be suppressed.
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