The MRI of the knee is to check whether the meniscus, ligaments and cartilage of the knee joint are damaged. After the MRI is done, a professional imaging technician will clean the MRI film, which takes about half an hour, which is about one hour from the start of the knee MRI until the film is washed. After the film is washed, a professional MRI physician needs to read the film and write the report. The MRI film is examined by more than 3 attending physicians and read carefully to write the report accurately, which takes 2-3 hours to write the report.