Diagnostic Imaging Services
Computed Tomography (CT)
CT stands for Computed Tomography and is a painless examination that produces a series of computerized images of your anatomy that are useful in detecting many medical conditions that may not appear on traditional X-Rays. The donut shaped CT scanner houses an X-Ray tube that moves rapidly around a specific anatomical area sending signals to a computer. The computer reconstructs these signals to form a complete image of your internal anatomy. During your CT exam, you will be asked to lie very still on a padded table for approximately 15 minutes. The images are then sent to our PACS System for the radiologist to quickly interpret and send results to your physician.
Preparing for a CT
If your CT exam requires the use of an intravenous contrast agent, your technologist may start an IV and you may be given an oral contrast agent to drink prior to coming for your appointment. These contrast agents are visible to the computer and allow greatly enhanced CT images. You will be asked to pick up this oral contrast in advance at MetroWest Medical Center. Please check with your referring physician as to how they recommend you obtain your contrast prior to the exam. Continue taking your daily medications prior to your exam. If you have ever had an allergic reaction to a contrast agent, have multiple allergies, or suffer from asthma, it is very important that you notify the technologists when you arrive for your appointment. If your physician requests oral contrast, you must stay on clear liquids 5 hours prior to starting the oral contrast. All other CT exams allow you to have clear liquids only, 3 hours prior to your exam.
For more information about any of these procedures, including how to prepare and what to expect, visit www.radiologyinfo.com