An echocardiogram (echo) is a graphic outline of the heart's movement. During an echo test, ultrasound (high-frequency sound waves) from a hand-held wand placed on your chest provides pictures of the heart's valves and chambers and helps the sonographer evaluate the pumping action of the heart.

An electrocardiogram (EKG) test is a simple, painless procedure that measures electrical signals in your heart. Each time your heart beats, an electrical signal travels through the heart.

A hepatobiliary iminodiacetic acid (HIDA) scan is an imaging procedure used to diagnose problems of the liver, gallbladder and bile ducts.

This is a type of nuclear scanning test. It shows how well blood flows to the heart muscle. The lexiscan stress test involves injecting a medication called lexiscan into your IV while you are closely monitored.

A mammogram is an X-ray picture of the breast. Doctors use a mammogram to look for early signs of breast cancer.

Bilateral mammograms represent the standard or traditional type of mammography. In these, the mammogram machine x-rays the breast tissue from a top and side view. Since a bilateral screening mammogram only shows the breast tissue from two angles, there's little compensation for overlap.

A 3D mammogram (breast tomosynthesis) is an imaging test that combines multiple breast X-rays to create a three-dimensional picture of the breast.

A diagnostic mammogram is an X-ray test used to diagnose unusual breast changes, such as a lump, pain, nipple discharge, change in breast size or shape or previous breast cancer. If your screening mammogram does show an abnormality, you may need additional imaging like a diagnostic mammogram.