CT Specialist

William R. Martin, MD -  - Diagnostic Imaging

Upper Valley Interventional Radiology

William R. Martin, MD

Diagnostic Imaging & Diagnostic Radiologist located in McAllen, TX

The quality of your computerized tomography scan (CT scan or CAT scan) determines the accuracy of your diagnosis and treatment. William R. Martin, MD, and the team at Upper Valley Interventional Radiology in McAllen, Texas, produce exceptional quality CT scans using the most advanced technology on the market, a Toshiba scanner with ultra-high resolution scanning. With this scanner, you receive the best possible image with the lowest radiation dose. To ensure your comfort, your CT scan is done in a spacious, private suite. To receive superior CT imaging performed by experienced and registered technologists, call the office or schedule an appointment online.

CT Q & A

How does a CT scan produce images?

A CT scan is a diagnostic procedure that takes a series of X-ray images from different angles around your body. A computer then processes the information, creating cross-sectional images that are like slices of your body that contain more detailed information than conventional X-rays.

After successive slices are collected, the computer can digitally stack them together to create a three-dimensional view of bones, organs, muscles, blood vessels, and other structures. 

When might I need a CT scan?

CT scans show the precise details needed to diagnose problems in all the organs and tissues inside your body, including your lungs, stomach, heart, kidneys, pancreas, intestines, and reproductive organs.

To give you a few examples, your doctor may order a CT scan to diagnose:

  • Internal injuries
  • Fractures and musculoskeletal disorders
  • Gastrointestinal disease
  • Brain tumors or brain injury
  • Primary cancers and metastatic diseases
  • Arterial disease and aneurysms

CT scans are also used to evaluate treatments or to assess the results after surgery.

What is a CT scan with contrast?

Some patients receive oral or intravenous X-ray dye, called contrast material, that highlights certain structures in their body during a CT scan. Contrast is iodine-based, so it’s important to let your technologist know if you’re allergic to iodine or X-ray dye.

What should I expect during a CT scan?

The CT scanner is a large machine with a round opening or tunnel (called a gantry) that goes through the center of the machine. You lie on a narrow, motorized table that automatically slides into the tunnel.

The machine is open on both ends, so you’re not enclosed. You can enter the machine head first or feet first. If you’re having an abdominal scan, for example, your feet go into the machine first and your head stays outside the machine. 

Your technologist stays in an adjoining room. However, they can see you and you can communicate with them throughout your procedure.

During the scan, you may hear buzzing or whirring noises as the components inside the machine rotate around your body taking X-rays. The entire process may take 5-30 minutes, but the scan only takes several minutes. The cutting-edge CT machine at Upper Valley Interventional Radiology can scan your chest, abdomen, and pelvis in less than 12 seconds. 

If you need to schedule a CT scan, call Upper Valley Interventional Radiology or schedule an appointment online.

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