An open MRI is a non-invasive and painless procedure in which radio waves and powerful magnets linked to a computer are used to create remarkably clear and detailed pictures of internal organs and tissues without the use of radiation.
A CT (computed tomography), sometimes called CAT scan, uses special x-ray equipment to obtain many images from different angles around the body.A digital computer together with a rotating x-ray device is used to create detailed cross "slices" of body tissues and organs. These images are recorded on a film.
Ultrasound imaging, also known as ultrasound scanning or sonography, is a method of seeing inside the human body through the use of high frequency sound waves. The sound waves are recorded to create an image of body tissues. Information obtained from these images can be used along with other data to make a diagnosis.
A vascular study or ultrasound is a non-invasive procedure to assess the blood flow in arteries and veins throughout the body. It uses sound waves to produce pictures that look at the structure and function of the vessels.
Doppler - A noninvasive test that can be used to estimate your blood flow through blood vessels by bouncing high-frequency sound waves (ultrasound) off circulating red blood cells. A regular ultrasound uses sound waves to produce images, but can't show blood flow.
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