Body MRI protocols can be daunting for the new trainee or novice reader, with a multitude of pulse sequences and a wide variety of acronyms. Understanding of basic MRI physics provides a framework for how to optimally use these sequences in clinical practice. Knowledge of the sequences as building blocks also informs efficient protocol design. This exhibit will:1) Highlight basic MRI physics principles that underpin core body MRI sequences2) Provide a framework of the families of sequences used in body MRI protocols, including individual vendors sequence names and key parameters3) Illustrate technical considerations and clinical utility of each sequence through case examples4) Describe how to build efficient protocols for indications such as liver masses, pancreaticobiliary imaging, renal/adrenal imaging, pelvic imaging, and imaging the moving patient

- relevant body MRI physics: single-shot, free-breathing, respiratory navigation, chemical shift, hepatobiliary contrast- sequence families: single-shot fast-spin echo, balanced steady-state free-precession, diffusion-weighted, spoiled gradient echo (chemical shift, quantitative multi-echo imaging, dynamic imaging), high resolution/small field of view imaging- for each sequence: vendor names/acronyms, key sequence parameters (TR, TE, flip angle, acquisition time, breath-holding strategy), technical considerations (SNR, artifacts, sensitivity to motion and susceptibility, need for fat suppression), and clinical applications- body MRI protocols: what sequences to include and why, using examples such as liver mass, pancreaticobiliary, renal/adrenal, and pelvic imaging, and how to image the moving patient