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FAQ
Here are answers to the most common questions about MRI. If you have more questions,
please don't hesitate to call us at (208) 947-7002 or (877) 674-6625. We're here to help!
Click on a question to read its answer:
- Is MRI superior to other imaging techniques?
- What is an "Open" MRI?
- What does "High Field" mean?
- What if I am claustrophobic?
- Can anyone have an MRI scan?
Is MRI superior to other imaging techniques (CT-scan, x-ray, etc.)?
Often, yes. MR images can be made from many different angles to give a better view of the tissues in question. MRI can also provide a level of detail that is often difficult to achieve with x-rays or other imaging systems. Because it captures relatively subtle difference in shape and appearance, an MRI image can help your doctor determine which tissues are healthy and which are not.
Best of all, you will not be exposed to any radiation when you receive an MRI scan.
What is an "Open" MRI?
Some MRI machines offer a more "open environment." We offer open MRI at Mercy North Hospital in Nampa, Idaho. You may discuss this option with your physician. Ultimately, it will be his/her preference to use or not use this modality. Open MRI is usually reserved for children, large patients and claustrophobic patients. Click here for more information on Open vs Closed MRI.
What does "High Field" mean?
When you are in a MRI scanner your body puts off a signal that is picked up by our imaging coil. Generally speaking, the higher the field strength of the magnet, the higher the signal received by the imaging coil. The higher the signal, the better the image quality. Magnets are categorized by their field strength. Magnets of 1.0 Tesla or higher are considered high field magnets. Magnets between .5 Tesla and 1.0 Tesla are considered mid-field magnets. Magnets below .5 Tesla are considered low field, or open, magnets. We employ two "High-Field" magnets at the MRI Center of Idaho: GE TwinSpeed with EXCITE and Siemens Symphony Quantum.
What if I am claustrophobic?
If you know this in advance of the exam, please discuss this with your physician. He/she can prescribe an oral medication to help you relax. Follow your physician's instructions about when to take your prescription. Even if you are claustrophobic, our technologist and patient care associate will work with you to help you feel at ease throughout the exam.
Can anyone have an MRI scan?
The following items are important in helping us determine whether you qualify for an MRI scan. We will talk with you in detail about whether:
- You are pregnant
- You've ever had surgery
- You have any implants, especially in your eye, ear, brain or heart
- You have cardiac valve replacements or a pacemaker, bone or joint replacements or aneurysm clips.
These conditions may not exclude you from having an MRI exam, but they'll be important determining factors.
For example, patients with a cardiac pacemaker or certain brain aneurysm clips cannot
safely have an MRI exam. Also, in some cases, infants, small children, claustrophobic
patients and/or those with severe pain or physical limitations may not be able to lie
still for an MRI exam without sedation. |
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