Myo Min Han MD


Radioactive Tracer

Radioactive tracers are used in imaging tests that help find problems inside the body. These tracers give off particles that can be detected and turned into a picture to help find problems in organs or other structures. The tracer is usually given through an intravenous (IV) line placed in a vein. But the tracer also…

Nuclear Medicine Scan

Nuclear medicine scans use a special camera (gamma) to take pictures of tissues and organs in the body after a radioactive tracer (radionuclide or radioisotope) is put in a vein in the arm and is absorbed by the tissues and organs. The radioactive tracer shows the activity and function of the tissues or organs. Each…

Bone Scan of the Spread of Prostate Cancer

Courtesy of Intermountain Medical Imaging, Boise, Idaho. A bone scan is a test that uses a radioactive tracer to look at the bones of the body. Areas that absorb little or no amount of tracer appear as dark or “cold” spots. Areas of fast bone growth or repair absorb more tracer and show up as bright or “hot” spots in…

Lung Nuclear Medicine Scan

Courtesy of Intermountain Medical Imaging, Boise, Idaho. A lung scan is a test that uses a radioactive tracer to look at the lungs. Areas of the lung that retain too much air show up as bright or “hot” spots on the pictures. Areas that are not receiving enough air show up as dark or “cold” spots. Figure 1 shows normal…

Bone Scan

A bone scan is a test that can find damage to the bones, find cancer that has spread to the bones, and watch problems such as infection and trauma to the bones. A bone scan can often find a problem days to months earlier than a regular X-ray test. During a bone scan, a radioactive substance called a tracer is injected…