Health Article description.External beam radiation therapy uses doses of radiation to kill cancer cells. A beam of radiation is aimed at the tumor from outside the body. This treatment is given to most people with early-stage breast cancer who choose breast-conserving...

Health Article description.A cardiac blood pool scan shows how well your heart is pumping blood to the rest of your body. During this test, a small amount of a radioactive substance called a tracer is injected into a vein. A gamma camera detects the radioactive material as...

Health Article description.An intravenous pyelogram (IVP) is an X-ray test that provides pictures of the kidneys, the bladder, the ureters, and the urethra ( urinary tract). An IVP can show the size, shape, and position of the urinary tract, and it can evaluate the collecting system inside the kidneys. During IVP, a dye called contrast material...

Health Article description.A cardiac perfusion scan measures the amount of blood in your heart muscle at rest and after it has been stressed. It is often done to find out what may be causing symptoms like angina (such as chest pain or pressure). It may be done after a heart...

Health Article description.Radiation oncologists are medical doctors who specialize in using radiation therapy to treat people who have cancer. Most people are referred to a radiation oncologist by their primary doctors after a diagnosis of cancer. And they see the radiation oncologist at his or her office or in a hospital or extended-care...

Health Article description.An angiogram of the lung is an X-ray test that uses a special dye and camera (fluoroscopy) to take pictures of the blood flow in the blood vessels of the lung. During an angiogram, a thin tube called a catheter is placed into a femoral blood vessel...