Neuroradiological anatomical studies include the brain, the spine, and the anatomy attended to by the otolaryngologist. For brain studies, for the vast majority of indications, MRI is the study of…

The abdomen and pelvis are usually studied initially by sonography because it is less expensive, widely available, and does not use ionizing radiation. Subsequently and depending on the particular clinical application, CT scans are obtained when it is necessary to clarify sonogram findings.

MRI of the knee, sagittal/lateral magnified image to the medial meniscus (interior). The red arrow shows a tear of the posterior horn of the meniscus visualized by a bright line. The healthy meniscus looks uniformly black