Magnetic Resonance Imaging By Mehmet Kocak, MD, Rush University Medical Center Reviewed / Revised Apr 2021 | Modified Sep 2022 View Patient Education Uses of MRI Variations of MRI Disadvantages of MRI Topic Resources T1-Weighted MRI MRI of the Knee Short, Tight Inversion Recovery... MRI uses magnetic fields and radio waves to produce images of thin slices of tissues (tomographic images).