In-depth

Tests and diagnosis

Chest X-rays

Even with today's high-tech medical devices, the basic chest X-ray remains an important tool in diagnosing various conditions. Here's a look at how it works.

CT scan

A CT scan is an imaging test that uses X-rays to produce detailed images of the inside of your body.

Eye exam

Eye exam — Overview covers definition, what to expect and results of vision testing.

Liver function tests

Find out how this battery of blood tests helps your doctor diagnose and monitor liver disease.

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Ultrasound

Ultrasound imaging uses high-frequency sound waves to create images of structures in your body.

Treatments and drugs

Radiation therapy

Radiation therapy is a common means of treating many types of cancer. Find out what to expect during your radiation therapy treatment.

Aug. 08, 2012