MRI should be considered when the area of pain can be localized with nerve blocks but the cause of the pain cannot be determined from radiographs or ultrasound images. Or perhaps we feel we have some information from our radiographs and ultrasound exam but not a complete picture. In some cases, having all the information possible allows us to make better decisions as to treatment and management of the lame horse. Because of the way MRI images are generated we are able to get cross sectional images that include detailed information of both hard and soft tissues and a different perspective on anatomical changes that can be present especially with chronic conditions. Standing MRI equipment is most commonly used for imaging the foot and structures up to the tarsus (hock) and carpus (knee). Other MRI machines require general anesthesia but they have more extensive imaging capabilities. We are fortunate in this area to have both types of MRI equipment available depending on your horses needs.