Radiologic technologists perform complex imaging procedures that assist with diagnostic imaging examination. Technologists with the knowledge of more than one diagnostic imaging procedure, such as CT, MRI, and mammography, will have the best employment opportunities.

Radiologic technologists who specialize in computed tomography are known as CT technologists. They perform procedures known as computerized axial tomography scans, which produce a cross-sectional x rays of an area of the body resulting in a three-dimensional image. CT scans are done as an emergency precaution or as a part of a routine diagnostic procedure and expose patients to relatively high amounts of radiation, so they are usually not conducted unless it is absolutely vital to a person’s health. The scans can take as long as 15 to 45 minutes for the technologist to create a transparent view of the patient’s body so that a physician can look at it for further diagnosis. CT Scan Technicians must have the ability to interpret a doctor’s scanning instructions and administer contrast materials. They also need to be able to prepare and operate scanning equipment and position the patient in such a way that most accurately captures the correct image.

Radiologic technologists who specialize in magnetic imaging are known as MRI technologists. They perform procedures known as Magnetic Resonance Imaging scans, which produce multiple cross-sectional images to create a three dimensional image using non-ionizing frequency. This generates the image contrast. MRI scans are used by physicians to distinguish pathological tissue from normal tissue and since it does not use ionizing radiation, it is not harmful to the patient. MRI technologists use these magnetic resonance imaging scanners to capture certain images that a physician wants to look at in order to determine diagnosis. Just like CT technologists, MRI technologists must be able follow the doctor’s instructions prepare and operate scanning equipment, and position the patient to capture the correct image.

Radiologic technologists who specialize in mammography are known as mammographers. They perform procedures know as mammograms, which use low dose x-ray systems to produce an image of the breast. This procedure is done as a precaution for the purpose of screening, diagnosis, and treatment of breast cancer. Educated in physics, radiation safety, breast anatomy and pathology, mammographers examine patient’s medical histories, prepare patients for procedures, operate the breast imaging equipment and devices, and conduct breast imaging procedures. They also evaluate the breast images checking them for technical quality, assist with interventional procedures, and quality control tests.