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What does T1WI stand for?

T1WI stands for T1-weighted spin-echo

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5 months (range, 33-80 months). A comparable MR imaging protocol was used for the first series and for the last scan, including an equal number of slices and equal dose of Gd on both occasions. Identical slice positioning was achieved by means of unenhanced images in 2 or 3 consecutive planes, correcting for positioning differences according to internal landmarks. 23 After administration of gadopentetate dimeglumine (Magnevist; Schering AG, Berlin, Germany) (0. 1 mmol/kg), axial T2-weighted spin-echo.
The spin echo pulse sequence is the most commonly used pulse sequence. The pulse sequence timing can be adjusted to give T1-weighted, Proton or spin density, and T2-weighted images. Dual echo and multiecho sequences can be used to obtain both prot...
For an adequate pelvic MRI evaluation, images must be obtained minimum in two planes. T1-weighted spin-echo images in the axial plane and T2-weighted fast spin-echo images obtained in the axial, sagittal, and coronal planes are usually employed to evaluate uterus, adjacent organs, pelvic floor, and broad ligaments, providing panoramic “morphological” view of the pelvis. Acquisition of T1- and T2-weighted images is fundamental for pelvic anatomy and tissue characterization [9–11].