A technology is described for using a medical implement or a fluoroscopic image with reference to an image data set and a body of a person. A method may include detecting visual image data of a body of a patient and a medical implement. The optical codes on the body of the patient and on the medical implement may be identified. One operation is aligning the image data set with the body of the person using one or more optical codes on the body of the person and the fixed position of an image visible marker with respect to the optical code. A position of the medical implement with respect to the body of the person may be determined using one or more optical codes on the medical implement and the body of the person to reference the medical implement to the image data set and the body of the person.
