Sharif M et al. Serum hyaluronic acid level as a predictor of disease progression in osteoarthritis of the knee. Arthritis Rheum 38:760-767, 1995; Hochberg MC et al. Serum levels of insulin-like growth factor 1 in subjects with osteoarthritis of the knee. Arthritis Rheum 37:1177-1180, 1994
Stable isotopes of an element do not change over time. Atoms of unstable isotopes â also called radioisotopes--change into other elements over time through radioactive decay. Radioisotopes are used in many medical imaging and diagnostic procedures, with the isotope Tc-99m being used in 80 percent of tests.
Career Information At a Glance. Radiologists typically specialize in diagnostic radiology or oncology radiation. Through the use of x-rays, ultrasounds, magnetic resonance imaging (MRI) and nuclear medicine, you'll interpret and diagnose illnesses.Consider the information in the following table to determine if a career as a radiologist is right for you.hrough the use of x-rays, ultrasounds, magnetic resonance imaging (MRI) and nuclear medicine, you'll interpret and diagnose illnesses. Consider the information in the following table to determine if a career as a radiologist is right for you.