Computed Tomography (CT)
Computed tomography (CT) is a medical diagnostic tool that allows the visualization of internal structures within the human body. Saint Louis University Hospital uses a helical CT scanner to aid physicians in diagnosing disease by viewing internal abnormalities and assessing the extent of injury related to trauma. The speed at which a helical CT scanner is able to produce images may improve the ability of physicians to visualize the extent of injuries related to trauma and to detect abnormalities related to cancer and vascular diseases.

Magnetic Resonance Imaging (MRI)
Saint Louis University Hospital's magnetic resonance imaging (MRI) equipment offers the latest in medical technology to help doctors more accurately diagnose medical problems. Magnetic resonance imaging allows physicians to visualize internal structures within the body without the use of radiation.

Non-Surgical Breast Biopsy
Radiologists at Saint Louis University Hospital have the technology available to provide non-surgical biopsy of suspicious masses in the breast. Using a stereotactic technique, radiologists can very accurately locate a suspicious lesion, then, through use of a biopsy needle, take a tiny section of tissue for examination and diagnosis, without surgery. This technique minimizes pain and scarring that could interfere with later mammographic follow-up.

Positron Emission Tomography (PET)
Saint Louis University Hospital offers positron emission tomography (PET), an imaging technology that assesses chemical and physiological changes related to metabolism. This is important because functional changes often occur before structural changes in tissue. Therefore, PET images may show pathological changes long before they would be revealed by computed tomography or magnetic resonance images.