or 845-454-4700
to schedule an appointment.
Magnetic Resonance Imaging (MRI)
A common question: “What’s the difference between Magnetic Resonance Imaging (MRI) and Computed Tomography (CT)?” Both have their strengths and weaknesses. MRI is best used to view tendons, ligaments, brain and the spinal cord. These types of tissues show up better on the MRI screen. CT is usually preferred for cancer, pneumonia, abnormal chest x-rays and bleeding in the brain, while MRI is often the best choice for viewing a tumor in the brain.
MRI can generate thin section images of any part of the body from any angle. DRA now offers new high definition scanners that generate images at even higher definition and resolution than ever seen before. Scan times are shorter, decreasing problems with patients’ motion while making the whole process more comfortable and relaxed.
How should I prepare for an MRI exam?
- You may wear your own clothing if there are no metal clasps or zippers on them.
- If you are scheduled for an MRI with contrast, you will be asked not to have anything to eat or drink four hours prior to the exam except medications unless otherwise instructed.
- You should be prepared to answer questions regarding your medical health issues or surgery. Some conditions like kidney disease may prevent an MRI from being taken with contrast material.
- If you are claustrophobic (fear of enclosed spaces) or suffer from anxiety, please let us know.
- People with the following implants may not be scanned and should not enter the scanning area without an in-depth review of the device by DRA Imaging, PC. Pacemaker, Internal (implanted) defibrillator, Cochlear (ear) implant, Brain aneurysm clips
- Some other devices that may represent a risk or cause an artifact
include:
- Artificial heart valves
- Implanted drug infusion ports
- Artificial limbs or metallic joint prostheses
- Implanted nerve stimulators
- Metal pins, screws, plates or surgical staples
- Usually metallic objects used in orthopedic surgery pose no issues during MRI.
- Sometimes X-rays are required to determine the presence of metallic objects in the body before an MRI. Also dyes used in tattoos may contain iron and could heat up during the procedure, but rarely pose a problem. It is suggested, tattoos less than 6 weeks old not be scanned.
What happens during the procedure?
- Depending on what is being examined, the technologist will place you on the MRI examination table, usually lying on your back. Because movement can interfere with the quality of the images, pillows are sometimes used to help you maintain the correct position and assist you in remaining still.
- If your procedure requires contrast, an IV (intravenous line) may be placed into a small vein in your arm or hand.
- During the procedure, the MRI machine will make a loud, rapid tapping or banging sound while the images are being obtained.
Most MRI exams take about forty minutes, however, please plan to be on-site about one hour.
Pregnancy Policy:
All patients of childbearing age (10 - 54) will be required to sign that there is No Chance of Pregnancy prior to an imaging exam being performed (Exception: - Ultrasound). If there is a chance of pregnancy, STAT blood work will be ordered prior to the procedure being performed to establish that there is no chance of pregnancy.
In the event, you are pregnant and the exam is deemed necessary by your physician, you will be shielded and monitored with a radiation badge.