CT Scan (Computed Tomography) in Brossard, Montreal South Shore | Radiologie Dix30

What is computed tomography (CT Scan)?

Computed tomography uses a very thin, precisely focused X-ray beam (very tight collimation) that rotates in a spiral around the patient. The rays that pass through the body’s structures are captured by multiple detectors, then processed by a computer system that reconstructs millimeter-thin cross-sectional images. These slices can be assembled to create a three-dimensional representation of organs, tissues, and bone structures, making it a particularly precise diagnostic tool.

In some situations, an injection of iodinated contrast material is required to better visualize the blood supply to lesions or make them stand out more clearly. Before any injection, our team systematically checks your history of iodine allergy and your kidney function, as contrast material can sometimes affect it. If needed, a creatinine test (a blood test used to assess kidney function) can be performed on site.

If you have a confirmed iodine allergy, we will avoid this injection whenever possible. If necessary, we will replace the investigation with another imaging modality that does not require iodinated contrast material.

Why have a CT Scan?

Computed tomography is one of the most versatile imaging exams. It is indicated in a very wide range of clinical situations, including:

• Evaluation of the chest, abdomen, and pelvis, to detect lesions, tumors, or abnormalities of the internal organs;
• Head and neck conditions, to examine the skull, brain, face, sinuses, eye sockets, ears, or soft tissues of the neck;
• Vascular conditions, thanks to CT angiography, which makes it possible to visualize blood vessels and detect abnormalities such as stenosis or an aneurysm;
• Musculoskeletal conditions, to assess complex fractures and joint or spinal lesions;
• Cancer screening and follow-up, to detect, locate, and monitor the progression of tumors;
• Virtual colonoscopy, to examine the colon non-invasively as an alternative to endoscopic colonoscopy;
• Preoperative or postoperative assessment, to plan surgery or evaluate its results.

Computed tomography is often used in addition to other imaging exams, such as ultrasound or MRI, to refine a diagnosis or guide a treatment decision.

How should you prepare for a computed tomography (CT Scan)?

Preparation varies depending on the type of exam prescribed.

For exams without contrast injection, no special preparation is generally required.

For exams with iodinated contrast injection, it is important to stay well hydrated before and after the exam to help the kidneys eliminate the contrast material. In some cases, a recent creatinine test will be required before the exam. If you do not have one, this test can be performed on site at the clinic for a minimal fee.

For CT enterography, fasting as well as drinking a solution to distend and cleanse the small intestine before the exam is generally required.

For virtual colonoscopy, a complete bowel preparation is required. This includes a low-residue diet and taking laxatives the day before the exam to completely empty the colon.

In all cases, personalized instructions and a precise protocol will be provided when you book your appointment.

Remember to bring your medical prescription, as well as the results of any previous imaging exams. They will be helpful to the radiologist when interpreting the images.

How do I book an appointment for a CT scan at Radiologie Dix30 clinic?

Computed tomography is available by appointment only. You can send your prescription by fax to 450-904-0405 or by email to info@radiologiedix30.com. Our team will schedule your appointment with you. For any other questions, contact us directly.

What happens during a CT Scan exam?

CT scans are performed at the Radiologie Dix30 Clinic, located in Brossard. Please plan to arrive 15 minutes before your appointment time for check-in at reception and to open your file if this is your first visit.

Here is how the exam takes place:

• Welcome and registration: you present your health insurance card and your prescription. You will be given a short questionnaire about your health, in particular to check your allergy history and kidney function;
• Preparation: depending on the area being examined, you may be asked to remove certain clothing items and put on a gown. If a contrast injection is planned, an IV line will be inserted before the exam;
• Image acquisition: you lie down on the exam table, which moves slowly through the scanner ring. The technologist guides you from the control room and gives you all the necessary instructions during the exam. The machine is relatively quiet and the exam is painless;
• Duration: most exams are completed in under 15 minutes. Additional images, called delayed images, may sometimes be needed and slightly extend the acquisition time. It is recommended to allow at least one hour for the entire visit;
• Return to activities: in most cases, you can resume normal activities immediately. If contrast material was injected, make sure to stay well hydrated in the hours following the exam to help eliminate it.

Cost of a CT Scan

Computed tomography exams are not covered by the Régie de l’assurance maladie du Québec (RAMQ). Rates vary depending on the area examined and whether or not a contrast injection is required. Please consult our fee schedule to find out the cost of your exam:

Results

The exam is generally interpreted by the radiologist the same day. A detailed report is sent to your referring physician within 2 to 5 days.