COMPUTERIZED TOMOGRAPHY (CT SCAN)
CT Scan
The CT Scan is a primary tool for diagnostic medicine. Popularly called “CAT Scan,” it employs a unique design of x-ray technology coupled with constantly advancing computer technology. With computerized tomography (CT) views are taken in a single plane, the data is computer processed and then displayed as a cross-section image.
This scanning method provides the physician with a two-dimensional "slice" of a designated target area in the patient's body as positioned on the examining table. Details and structure of the interior of the body can be mathematically reconstructed from the projections obtained from various angles. In the computerized tomography views are taken in a single plain, data is computed and displayed as a cross-sectioned image.
These images from the x-ray exposures are then recorded and stored in the computer. Data may then be reconstructed and the brightness of each portion of the cross-section is determined by x-ray absorption. The images taken may be displayed, recorded on film or stored for later review.
Basic CT Scan shows the area covered on a single frame. If areas needs examination the patient and the table are moved accordingly. This process is called "incremental" scanning and it limits the frames to specific sections as chosen. It is generally time consuming due to the multiple adjustments that are needed with both patient and equipment.
STRIC provides advanced CT technology, including high resolution 64 Detector CTs, wide-bore CTs and 3-D imaging, each designed to meet the imaging needs of you and your physician. To schedule an appointment please call 210-617-9000.
Special Procedures
Exam Preps
CT Virtual Colonoscopy
If you are having a Virtual Colonoscopy the same day as, or immediately after an incomplete Optical Colonoscopy, do not use this prep. Call our Central Scheduling Department at 210-617-9000 and come directly to one of our facilities.
IMPORTANT: You are taking bowel cleansing laxative products. Please plan your day accordingly.
Day Before the Exam
- Patients are to remain on a clear liquid diet.
- Chill one (1) bottle of Gastrografin in the refrigerator, this makes it more palatable.
- 12:00 PM – Take two (2) Dulcolax tablets
- 3:00 PM – Drink one (1) bottle of Magnesium Citrate mixed with 8 ounces of juice or clear carbonated drink (example: Sprite). Follow this with 4 to 8 cups of water during the afternoon
- 6:00 PM – Drink entire bottle of RediCat2 flavored smoothie. You may drink 4 to 8 cups of water in the evening
- 6:30 PM – Drink the 2nd bottle of Magnesium Citrate as per 3:00 PM
- 9:00 PM – Get out the “chilled bottle”: Drink bottle of Gastrografin mixed with Sprite or clear juice.
Day of the Exam
- You may drink water or clear liquids until your exam. Please call with any questions.
If the instructions above are not followed closely, the exam may need to be rescheduled. Contact your doctor or our Central Scheduling Department at 210-617-9000 if you have any questions about this prep or your exam.
CT Abdomen & Pelvis
- Nothing to eat or drink 4 hours prior to exam
- Shake barium prep well before consumption
- Drink one (1) container of barium 2 hours before your appointment time
- Drink contents of the entire container within 30 minutes
- Drink the contents of the second container one (1) hour before your appointment time
- Drink the contents within 30 minutes
- You should have consumed all of the barium prep by thirty (30) minutes prior to your appointment
- Please arrive at the facility 15 minutes prior to your appointment