Diagnostic radiologists use a variety of imaging procedures to see inside the body and assess or diagnose the patient’s condition. Your radiologist plays an important role in your health by acting as an expert consultant to your referring physician (the doctor who sent you for testing) by choosing the proper exam and directing radiology technologists (those who operate the equipment) in properly performing quality exams. They interpret and report on the resulting images, recommending treatment and, only when appropriate, additional tests.