Desert Imaging
M R I / M R A

M R I

An MRI scan, also called magnetic resonance imaging uses a strong magnet and radio waves to align water molecules in the area being imaged. Since our bodies are made up of mostly water and each organ has different quantities of water in it, the images acquired show differences in normal and abnormal anatomy.

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Digital geometry

Digital geometry processing is used to generate a 3D (3 dimensional) image of the inside of the object from a large series of 2D (two-dimensional) images. These 3D images are put together to generate the image of a particular organ.

At Desert Imaging, we utilize 1.5 T (Tesla) at 2 locations

( our Eastside location: 1727 Lee Trevino, and Westside: 122 W Castellano locations. )

M R A

An MRA is a magnetic resonance angiography which generates pictures of the arteries to evaluate them for abnormal narrowing or aneurysms. MRA is often used to evaluate the arteries of the neck and brain, the thoracic and abdominal aorta, the renal arteries, and the legs called a run-off.

Both MRI and MRA images can generate a 3D image which can help the radiologist find abnormalities.

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mra
Desert Imaging

Frequently asked questions

Did you know?

MRI / MRA

Both MRI and MRA images can generate a 3D image which can help the radiologist find abnormalities.

What if I have claustrophobia?

If you have claustrophobia, your doctor may prescribe an oral medication for you to take with you for your MRI appointment.

What is contrast?

Your doctor may order your exam with or without contrast. If he/she has ordered contrast, a liquid gadolinium dye is injected into your vein. It will enhance lesions present in many organs.

How is the procedure done?

The duration of the procedure will vary but the average is 45 minutes to one hour per body part. You will be asked to lie still during the actual MRI or MRA scanning. The magnet is permanently open on both ends. It is well lit and there is a fan for patient comfort. There is also a two way intercom system for communication between patient and technologist. The part of the body being scanned will be placed in the middle of the magnet. During the actual imaging, you will hear a loud intermittent banging noise. You will be provided with earplugs or head phones to minimize the noise during the procedure. The technologist will also provide you with an alarm button to alert the technologist of any discomfort you may experience at any point during the MRI exam.

How should I prepare?

Because of the strong magnetic field used during the exam, certain conditions may prevent you from having a MRI or MRA procedure. When scheduling your appointment and prior to your exam, please alert our staff and technologist to the following conditions that may apply to you. The radiology staff will let you know whether you can have the MRI exam and whether the exam needs to be modified for your particular condition.
  • Pacemaker
  • Pregnancy
  • Claustrophobia
  • History of kidney problems
  • Skin tattoos
  • Neurostimulators (TENS-unit)
  • Implanted drug infusion device (i.e., insulin pump)
  • Exposure of metal fragments to your eye
  • Artificial heart valves
  • Aneurysm clips
  • Cochlear implants
  • Metallic implants and prosthesis
  • Vascular stent or stent graft
  • History as a metal worker
  • Shrapnel or bullet wounds
  • Dorsal column stimulators
  • Allergy to iodine, or gadolinium
  • History of diabetes
  • Other conditions you believe to be relevant
Please leave your valuables at home, including jewelry, to prevent it from being lost or stolen, for they have to be removed prior to entering the scan room. If you don’t want to change into hospital attire, please wear cotton clothing without any metal zippers, hooks, or buttons. Please bring a list of your current medications.
Preparing for your appointment

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  • Arrive at least 15 minutes before your scheduled appointment time.
  • Bring all health insurance cards and information.
  • Notify us if any of your information has changed
  • Wear loose, comfortable clothing
  • Leave valuable items at home
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